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    1. On 2018-04-11 03:59:05, user bennedose wrote:

      When it comes to IE language in India, Kurgans and India have no connection whatsoever. The two can be compared using the sources linked below

      Below is a paper that describes Rakhigarhi graves of the IVC in detail<br /> http://journals.plos.org/pl...

      Here is how Gimbutas described Kurgans - which is pretty much the same as those described in this paper by Vagheesh Narasimhan et al <br /> https://indo-european.eu/20...

      "According to Gimbutas, the “Kurgan people” are evidenced by single graves in deep shafts, often in wooden chests (coffins) or stone cists marked by low earth or stone barrows; the dead lay on their backs with legs contracted; they were buried with flint points or arrowheads, figurines depicting horses’ heads, boars tusk ornaments and animal tooth pendants. Human sacrifice was allegedly performed during the funeral ceremonies,and sometimes ritual graves of cattle and other animals were added. This is said to contrast with what Gimbutas called the culture of Old Europe (i.e. the earlier Neolithic of the Balkans), who “betray a concern for the deification of the dead and the construction of monumental works of architecture visible in mortuary houses,grave markings, tumuli, stone rings or stone stelae, and in the large quantity of weapons found in the graves”."

    1. On 2020-05-06 23:02:20, user Michael Hendzel wrote:

      I'd like to note that this paper arose from independent projects taking place in our lab and the Hansen lab that complemented each other. We had a previous independent version of this manuscript that is also posted on BioRxiv. Given the extensive changes in authorship, communicating authors, and content, we have opted to post this as a separate submission. The original related submission from the Hendzel lab can be found here: https://www.biorxiv.org/con...

    1. On 2023-11-13 10:43:48, user Gary Mirams wrote:

      This is a very nice use of a mathematical model of patch clamp compensations to account for artefacts in fast sodium recordings at 37C.

      Just a little note that whilst Lei et al. (2020) introduced the artefact model without supercharging/prediction compensation, we expanded on that to include those effects in the artefact model version published in Chon Lok Lei's thesis: https://chonlei.github.io/t...

    1. On 2020-06-01 10:48:04, user Justin Byrne wrote:

      The Network Ecology research group at Newcastle read through this paper today for our journal club. We were pleased to see an ecological paper making use of the full capabilities of dada2 and deseq2 on a fungal dataset.

      We thought that good work had been done in the experimental design to control for the effects of environmental gradients, although would have preferred if there was an attempt to verify how successful this was. We generally empathised with the difficulties of selecting sample sizes before knowing the degree of variability in sample diversity, and how the costs of sequencing and sample preparation can limit the size of these kinds of studies. It appears that the study size was appropriate for the simple diversity metrics; but, as the authors highlight themselves, may struggle to identify consistent features of their networks.

      Overall, we struggled with the strong and coherent message provided by the initial results, that becomes less clear by the inclusion of these ecological networks. However, we strongly feel that it is important for this work to be conducted, addressing how networks can and cannot be integrated into biomonitoring.<br /> We would have liked more information about how the technical replicates, negatives, and positives were incorporated into the analysis. We also would like to know how samples were normalised and pooled prior to sequencing to ensure that equal concentrations of DNA were combined for sequencing. Furthermore, given that deseq2 allows for normalising sample abundance by read depth, it would be interesting to have more discussion of the benefits and drawbacks of using read abundance as an input to biodiversity metrics.

      We were very interested by the results that suggested that differences in network links resulted from rewiring rather than taxa turnover. Given recent work - Co-occurrence is not evidence of ecological interactions, F. Guillaume Blanchet (2020) – has looked at potential pitfalls for inferred networks, we would be interested to see if it becomes revisited in the discussion in the final article.

      Thank you for an interesting, informative, and convincing paper.

    1. On 2020-04-15 09:12:04, user Mounia Chami wrote:

      Great work,

      You forgot to cite this paper

      Localization and Processing of the Amyloid-? Protein Precursor in Mitochondria-Associated Membranes.

      Del Prete D, Suski JM, Oulès B, Debayle D, Gay AS, Lacas-Gervais S, <br /> Bussiere R, Bauer C, Pinton P, Paterlini-Bréchot P, Wieckowski MR, <br /> Checler F, Chami M.

      J Alzheimers Dis. 2017;55(4):1549-1570. doi: 10.3233/JAD-160953.

      PMID:27911326Free PMC Article

    1. On 2018-03-21 21:07:42, user Miguel Thomson wrote:

      I’m not genticist, but I’m interested in linguistics. In the article it is said that “the Gennargentu region also has elevated levels of pre-Neolithic hunter-gatherer ancestry and increased affinity to Basque populations”. It is precisely in the region of Barbagia, along the Gennargentu massif, where the Basque linguist Juan Martin Elexpuru has found the highest density of Basque-like toponyms, which is described in his recent book “Euskararen aztarnak Sardinian?” (“Vestiges of the Basque language in Sardinia?”). Therefore, there is full geographic coincidence between genetics and toponymy. I have a question: is the affinity between Basques and Sardinians of the Gennargentu region found in the Neolithic or in the hunter-gatherer part of the genome?

    1. On 2020-04-03 23:35:32, user David E. Shellenberger wrote:

      The popular media are misconstruing the study. For an intelligent discussion of the research, see this piece:

      "Coronavirus can infect cats — dogs, not so much:<br /> But scientists say it’s unclear whether felines can spread the virus to people, so pet owners need not panic yet."<br /> https://www.nature.com/arti...

      "There is no direct evidence that the infected cats secreted enough coronavirus to pass it on to people, she says."

      "Saif says that none of the infected cats showed symptoms of illness, and that only one out of the three felines exposed to infected animals caught the virus."

    1. On 2016-05-10 23:23:36, user Debbie Kennett wrote:

      I'd be interested to know how your phasing algorithm compares to Underdog, an adaptation of Beagle, developed by AncestryDNA which is designed to cope with a large dataset now approaching two million people. It currently uses a reference panel of 300,000 genotypes. Details are provided in their White Paper: http://dna.ancestry.com/res...

    1. On 2018-08-27 05:56:35, user Sulev Reisberg wrote:

      Please take a look at our paper of very similar topic: http://journals.plos.org/pl... We used two large GRS-s (both containing thousands of SNPs) and showed that the differences between GRS distributions (and therefore high/low risk estimations) for Europeans and Africans based on GRS can be even larger - the opposite to each other. We show that risk allele frequencies tend to be higher in African than European population which is the cause of getting higher GRS values there. Moreover, the frequencies of the SNPs used for GRS calculation contain strong population component - even without applying any GRS weighing.

    1. On 2023-04-28 23:25:26, user Charles Warden wrote:

      Hi,

      Thank you very much for posting this preprint.

      For the 2nd author affiliation, I believe that there is a minor typo:

      Current: Sothern

      Corrected: Southern

      Thank you again!

      Sincerely,<br /> Charles

    1. On 2023-12-01 11:50:10, user Ready Boy wrote:

      Zaprionus tuberculatus was already reported from mainland France in 2020 (see Mouttet and al., Phytoma issue 738, november 2020). Z. tuberculatus is known from Hérault (2018) and also in Corsica (2020).

    1. On 2025-07-01 20:31:41, user Laura Sanchez wrote:

      The preprint by Young et al describes the design and implementation for post ionization for mass spectrometry imaging samples. Specifically, the team utilizes transmission mode MALDI followed by cold plasma ionization source (SICRIT) with analytes then being analyzed in a timsTOF Pro. The work was able to achieve subcellular MSI which they showed across a variety of tissues and cells to highlight their application. Furthermore, they fortuitously discovered that pre-staining with cresyl violet enhanced ionization of nucleotides and helped facilitate subcellular imaging. Overall this paper provided excellent figures with exciting data, was highly rigorous in the reporting of the lipid species and nomenclature used, and with the instrumental design and assessment of the staining impact on the resulting images. We also enjoyed that this could provide staining and MSI on the same tissue rather than having to take serial sections; this is a really exciting aspect of this work. Below please find critiques for the authors considerations.

      1. The comparison between pre and post CV staining was striking. Perhaps a little more discussion here could be helpful, it seems like in addition to the sample preparation creating the cavitations, do the authors posit that CV itself might be acting as a matrix as well to help facilitate ionization? Would other stains have a similar effect?

      2. Our understanding of this instrument is that this is still fundamentally MALDI-2 like, in that the SICRIT is acting as a secondary ionization source, can the authors perhaps confirm this or make it more clear in the writing, that both neutral and ions are created during the transmission mode and further ions are created by the SICRIT. If this is not what is happening, then perhaps the writing could be adjusted.

      3. For all MSI figures, it would be helpful to include the SMART ( https://doi.org/10.1002/jms.4904) "https://doi.org/10.1002/jms.4904)") reporting standards in the figures both main text and SI are encouraged to increase the transparency of the experiments. One thing we discussed was the time these experiments might take for the areas and the spatial resolutions achieved.

      4. One thing that was unclear, is the intersection of how the cold plasma vs the more traditional MALDI-2 would drive the specifics for ionization of the nucleotides and lipids. Specifically could the CV be compatible with normal MALDI-2? We appreciate that the same spatial resolutions would not be achieved but it would be interesting to really isolate how the different changes really impact the subsequent detection of analytes to better understand how to optimize the system or pick the system for different biomolecules in the future.

      5. Figure 4D doesn’t seem to help aid in the excitement of this methodology, specifically the microscopy doesn’t match the ion images. Or did the authors expect that only one cell line would be different compared to the other three? Could they better comment on some of the biology maybe if this what they expected?Figure 4C. Was the point to demonstrate colocalization of the dyes with the lipids? It could be helpful to highlight why the data might be meaningful and address the outstanding biological challenges. Figure4 B, C, D weren’t in order for increasing spatial resolution.

      6. Can the authors comment on why only positive mode was done for the lipid analysis? Can this set up do negative mode? It might be helpful to comment on to better understand the rationale.

      7. Why was 6 ppm vs 5 ppm for the lipid annotations? Typically for Organic Chemistry or Natural Products we utilize 5 ppm for HRMS.

      8. Figure 3 this is very cool - is this known that Adenosine has a punctate pattern? The significance of the findings was not discussed, if this is a new biological observation that would be helpful to highlight this more so that the importance of subcellular metabolomics is really needed. Highlighting the significance of the findings would help bolster the future applications.

    1. On 2020-07-31 13:12:11, user John Neu wrote:

      It is great that someone is looking into this. However my concern with this study is the lack of a positive control experiment for famotidine. Since these results fly in the face of the modelling study (especially figure 3.). An inactive famotidine sample could explain this result.

    1. On 2017-01-10 04:50:22, user Matan Shelomi wrote:

      You used one flow cell for one milk sample: what if you wanted the microbial community of several samples? With barcoding, how many samples could be analyzed at once on a single flowcell?

    1. On 2021-09-29 17:05:51, user Marcus Oliveira wrote:

      The work performed by Song and colleagues investigates the metabolic roles of LETMD1 protein in brown adipocyte energy metabolism and the systemic physiological consequences to<br /> mice. The authors identified that whole-body genetic deletion of LETMD1 promotes consistent reductions in mitochondrial structural and functional markers including reduced expression of mitochondrial proteins, low respiratory rates, and calcium ion levels. Such effects were paralleled to brown adipocyte whitening and accumulation of lipid droplets as well as systemic metabolic defects including impaired thermogenesis, cold intolerance, hyperglycemia, and insulin resistance, particularly under high fat diet. Although the results are very interesting and indicate that LETMD1 plays a role in regulating mitochondrial processes, the mechanistic bases underlying the systemic metabolic consequences caused by LETMD1 are not properly supported. Particularly, the relationship between mitochondrial Ca2+ and LETMD1 should be pursued by the authors to better substantiate the claim that systemic metabolic effects of LETMD1 KO results from altered mitochondrial Ca2+ and dynamics. Thus, I have observed some caveats and limitations of the present study as pointed out below, which authors might find useful to strength their conclusions.

      Major comments:<br /> 1) The authors did not provide proper background literature to support the working hypothesis. For example, on the second paragraph of introduction, page 5, the authors state that “Interestingly, by analysis the expression profiles of LETMD1 in human and mice, we found that LETMD1 was highly expressed in the metabolism relative tissues, especially brown adipose tissue (BAT), and the expression of LETMD1 was significantly reduced in adipose tissues of the obese people and the high fat diet (HFD) induced mice.” I think this is a critical aspect to substantiate the studies on LETMD1 in adipose tissues. Alternatively, the authors should revise this paragraph clearly stating that background evidence is unpublished/preliminary.

      2) I have observed four important issues on the animal model used. First is which sub-strain of black 6 mice LETMD1KO were generated? Given that several sub-strains of black 6 are available, with distinct mutations that affect energy and redox metabolism<br /> (https://www.nature.com/arti... "https://www.nature.com/articles/s42255-018-0018-3?WT.feed_name=subjects_genetics)"),<br /> this is a crucial point that authors should clearly define. Second, the authors did not specify which sex and age were used throughout the work. Third, since the authors used a whole-body KO in their study, one might argue that factors released by tissues other than BAT generated by LETMD1 depletion might have<br /> caused the observed metabolic effects. This seems particularly important considering that LETMD1 is highly expressed in liver as well. Although this specific issue was not fully addressed, the authors should add a cautionary note at the discussion section, as well as balance their statements about the specific role of LETMD1 in BAT. Finally, since mice were maintained at 22oC which activates a thermogenic program (https://pubmed.ncbi.nlm.nih... "https://pubmed.ncbi.nlm.nih.gov/29697140/)") to maintain core body temperature, the authors should balance their findings to consider how LETMD1 deletion would affect metabolism at thermoneutral conditions.

      3) The authors should balance whether the observed whitening of BAT in LETMD1KO mice is a consequence of impaired brown adipocyte differentiation program or, a loss of mature brown adipocyte biomarkers. Specifically, given the strong and a consistent reduction in mitochondrial markers, one might think that either mitochondrial biogenesis is impaired or mitophagy is activated in LETMD1KO mice. Does LETMD1 deletion affect mitochondrial mass/content in other tissues/models?

      4) There is a clear trend towards increase in lipid droplets size in LETMD1KO even in chow diet, which might involve increased expansion of these structures due to improved association of mitochondria to lipid droplets. Indeed, recent evidence demonstrated that a population of mitochondria associates to lipid droplets in BAT to support lipid droplet expansion (https://www.ncbi.nlm.nih.go... "https://www.ncbi.nlm.nih.gov/pubmed/29617645)"). It would be very interesting to see whether LETMD1 is differently located among mitochondrial populations in BAT and, if that is the case, then how LETMD1 contributes to lipogenesis and lipid droplet expansion.

      5) Considering that mitochondrial Ca2+ levels do not significantly rise upon adrenergic stimuli in LETMD1KO adipocytes, which mechanism mediates this effect? Since mitochondrial Ca2+ homeostasis is controlled by the calcium uniporter and NCLX activities (https://pubmed.ncbi.nlm.nih... "https://pubmed.ncbi.nlm.nih.gov/32620768/)"), how LETMD1 regulate mitochondrial Ca2+ homeostasis through these targets? Since the metabolic effects of LETMD1KO in mitochondria involve an imbalance of Ca2+, and adrenergic stimuli cause a rise in Ca2+ levels, I think it would be very informative how LETMD1 deletion would affect respirometry of norepinephrine activated adipocytes. If LETMD1 negatively regulates NCLX expression/activity, then LETMD1 deletion would increase NCLX levels facilitating Ca2+ extrusion from mitochondria ultimately increasing respiratory rates. Also, as NCLX deletion promote adipocyte apoptosis (https://pubmed.ncbi.nlm.nih... "https://pubmed.ncbi.nlm.nih.gov/32620768)"), it is possible that LETMD1 deletion would render adipocytes more resistant to apoptosis by preventing mitochondrial permeability transition and limiting Ca2+ accumulation.

      Minor comments:

      1) The authors should carefully revise the writing to improve some<br /> sentences as the following example at page 4 “LETM1 was identified as a key component of ions transporter in mitochondria, including Ca2+/H+ transportation, K+/H+ exchange, Na+/Ca2+ exchange, and Mg2+ transportation to maintain the mitochondrial biology and cation homeostasis”. Additional corrections should be made at: <br /> a) the last paragraph of page 5 “Therefore, we hypothesize…”.<br /> b) The first paragraph of page 6 “Mechanistically, our findings…”.

      2) The authors should better explain the different groups in graph legends. For example, in Figure 1C it is not known what the meanings of red and green bars are (which one is BAT and WAT?).

    1. On 2025-05-06 21:54:54, user Young Cho wrote:

      Key findings

      The first primary discovery discussed in this paper is that age affects DNA methylation (DNAm) in different ways depending on the location in the genome. For example, the researchers found that promoter regions experienced hypermethylation with age, while transposable elements experienced hypomethylation. The second discovery was that female dogs had lower methylation in X chromosome-linked long interspersed nuclear element-1s (LINE1s) than male dogs. This was unexpected because X chromosome inactivation would normally lead to much higher methylation, and thus a possible explanation is that females are more susceptible to age-related decline in methylation than males. The third discovery is that size is largely associated with the rate of methylation decline, where larger dogs lose LINE1 methylation with age at a significantly higher rate than smaller dogs. This may be a large part of the reason why larger dogs tend to have shorter lifespans.

      Results

      Figure 1 shows how the researchers prepared, processed, and annotated the blood samples from 864 dogs in order to measure the DNAm at various CpG sites throughout their genome.

      Figure 2 shows how age affects DNAm at different locations in the dogs’ genomes.

      Figure 3 shows that X-linked and age-associated X-linked LINE1s are more methylated in male dogs compared to female dogs.

      Figure 4 plots LINE1 methylation against age, showing that large dogs lose LINE1 methylation faster and have shorter lifespans than small dogs.

      These figures effectively show each significant conclusion the researchers made. I liked that only the major figures were included in the main part of the paper, while other less important, supporting data was labeled as supplementary figures.

      Supplemental figure 1 shows that there was no significant difference in the sizes of the female and male dogs used in this study, and also that each dog was appropriately categorized by size so that there was minimal overlap.

      Supplemental figure 2 gives an overview of the CpG sites that were analyzed in this study, showing CpG densities, region lengths, mean methylation, and high sample coverage.

      Supplemental figure 3 shows that promoter regions that are affected by methylation as one ages are often associated with important biological functions, such as integrated stress response signaling, immune response, etc.

      Discussion

      The discussion clearly outlines the main findings of this study. The first of which, correlates age with methylation in the genome. Additionally the methylation of LINE1s, a class of autonomous transposable elements, had a lower frequency in females than males. Lastly, the rate of DNA methylation in LINE1 was also associated with dog size. These conclusions were also supported by previous studies in other model species. For instance, the loss of methylation of LINE1s in other mammals was also associated with age, an observation also made in dogs. Furthermore, the authors conveyed the importance of this study (i.e. the higher frequency of LINE1 methylation in males) through linking the loss of silencing in Y-linked LINE1s with shorter life span, as this was observed in human studies.

      Methods

      In the methods section, describing blood sample collection, mention of transporting blood samples between universities was included. However the temperature at which these samples were at during this time period was not recorded. Additionally the amount of sample taken was not mentioned. Rather, this section conveyed what cohort of dogs their samples were taken from, who isolated specific cells from the samples, and why these peripheral blood mononuclear cells were isolated. Additionally, the method to extract the peripheral blood mononuclear cells may be present in reference 115. At the time of writing this review, this reference could not be accessed.

      Sample annotation, describes how information about the dogs’ backgrounds were obtained, first through survey. Which was utilized to categorize the dogs by size. Following this, a machine learning model calculated adult dog heights from 0-4. Where 0 equated to ankle height and 4 was waist high. For this, it may be preferable to designate height values or ranges rather than descriptions, as these heights are subjective. However, utilizing calculated or predicted heights allowed several advantages compared to survey or self-reported data, which was also included.

      RRBS was used to identify CpG sites by converting unmethylated cytosines to uracils, which is highly appropriate for this study, because it allowed the researchers to find and analyze any age-related changes in methylation across their samples. These sites were grouped into 47,393 regions based on their distances from each other, such that CpG sites from the same region were no further than 250 bp apart. This was an important preprocessing step because CpG sites that are close to each other are likely to experience similar levels of methylation, and thus any sites located further could have negatively skewed their data. Furthermore, a large majority of CpG regions (80%) had greater than 5x coverage in more than 95% of samples, ensuring that the data they collected was consistent and therefore reliable.

      The researchers annotated their CpG regions by using previously made data as a reference. For instance, they used NIH CanFam4, which is the current reference genome for Canis lupus familiaris, to align their sequenced data with. They were also able to map chromatin states (e.g. active promoters, enhancers, heterochromatin, and inactive regions) using Son et al.’s epigenetic map.

      PQLSeq was used for region-based differential methylation analysis because, as RRBS provides methylation and total read counts for CpG sites, PQLSeq uses binomial proportions to model the methylation data as an age-related factor and account for fixed and random effects of sex, predicted height, and genetic relatedness.

      With a generally large sample size of 864 dogs, each with their own larger set of methylated regions, it was necessary to use the Sol Supercomputer in order to compile and process all of the data efficiently and accurately.

      Strengths and limitations

      This paper was enlightening. There was a clear reason as to why this research should continue as these results can shed light on epigenetic processes that occur as mammals age. The goal of this paper was also achieved, as the authors recorded that DNA methylation plays a role as dogs age, where specific DNA regions experience changes in methylation frequency. The methods utilized to obtain these results and the following data supported their conclusions. Wherein their discussion section, ample prior results in various model species supported their results. Furthermore, the authors stated some limitations in their study but were able to come to conclusions utilizing papers focusing on other species. Thus, analysis of their results were sufficient.

      However, there are areas for improvement. There are minor adjustments that may need to be considered before publishing, which were detailed in the editorial decision. Furthermore, in terms of the cohort utilized, the number of female to male subjects and breed sizes varied between these categories and was not addressed. Which may inspire the question of how many subjects would be considered sufficient for the conclusions made in this paper. Additionally, figure clarity can be improved, specifically for Figure 4. As in print, the color differentiating breed size are very similar, to increase visibility it may be preferable to utilize other colors or dotted/dashed lines. However, these are minor changes and inquiries that do not diminish the importance of this paper.

      Editorial decision

      There are some formatting issues. For instance, in the third paragraph of the discussion section in the fourth sentence, stating, “A genetic mechanism underlying this breed’s increased cancer risk. . .” between, “breed’s,” and, “increased,” is a double space. Additionally, in the third paragraph of the introduction section, DNA methylation’s acronym (DNAm) is defined for the second time, which can be omitted, as the acronym was fully spelled out in a previous paragraph. The references are not formatted using current APA format. Furthermore there are some inconsistencies with the addition of DOIs, as only a couple references have them. In references that name species, they are not italicized. Additionally reference 115, at the time of writing this review, was not accessible. More clarity would also be preferable regarding how 864 subjects were chosen out of the approximate 1,000 dogs enrolled in the cohort used. Furthermore, during sample annotation, height values categorized by a machine learning model were described rather than providing a range of measurements, as the descriptions were subjective (e.g. “ankle high”). Otherwise, the value of this study is clear and this project is certainly valuable to understanding the impact of methylation and aging in mammals. Overall, the paper was a great read.

      This paper was organized into sections in a way that made it very easy to follow. We especially liked that major conclusion statements were bolded and made as subheadings in the discussion section, and that only figures that directly supported those conclusions were included in the main part of the paper. One other minor thing that we would say could be improved upon is the golden retriever case study — in order to show that age-related methylation patterns affect dogs on a breed-specific level, we feel like it would have been interesting to see the comparison of methylation in golden retrievers to distinct breeds rather than just non-golden retrievers. Overall, I would accept this paper with very minor revisions.

    1. On 2023-11-10 23:23:41, user Hui Wang wrote:

      The study suffers from two serious flaws that undermine its credibility:

      1. The authors overlook the fact that the aromatic ring of tyrosine 90 is essential for the SH3 domain hydrophobic pocket structure. They incorrectly present the Src90E mutation as mimicking phosphorylated tyrosine, ignoring the expected disruptive effect of almost any mutation at this site. This flaw raises doubts about the validity of their interpretation, as the observed data may be a result of the grossly disrupted SH3 domain binding site rather than of simulating Tyr90 phosphorylation.

      2. The study neglects the tightly regulated nature of Src kinase activity through phosphorylation by Csk. Previous research by Erpel et al. 1995 has demonstrated that the mutation of Tyr90 to alanine impairs the interaction with Csk and the negative regulation of Src kinase. As the mutations Src90E and Src90A are supposed to disrupt the SH3 domain binding pocket in essentially the same way, the authors fail to acknowledge this crucial aspect. This oversight undermines the study's reliability and suggests that the similarities observed between Src90E and Src527F may be solely due to the impaired interaction with Csk.

      These flaws significantly impact the study's findings and raise concerns about the thoroughness and accuracy of the authors' interpretation. Caution should be exercised when considering the conclusions presented in the study.

    1. On 2016-07-19 09:17:59, user Nelson wrote:

      What is the definition of Sub-Saharan Africa in that study? Based on the archaeological evidence, the Africans most likely related to the Natufians are Nile Valley Sudanese and other North Africans of the Eastern Sahara. Were their modern representatives included in this study?

    1. On 2015-09-19 15:23:31, user Brad Chapman wrote:

      Thank you for this work. It's incredibly useful to have additional public datasets for assessing low frequency variations. Are the sequenced reads and validation truth sets you used currently available? Thank you again.

    1. On 2021-02-04 05:30:17, user Megumi Iizuka wrote:

      I noticed, though that the data in their presentation material is from Day 0 to Day 8.<br /> https://investors.vaxart.co...<br /> Neutralizing antibodies generally don't appear until Day 7. I just don't know why their data only shows the response for day 0 and 8. I wonder why when they started in october 2020, they would only have prelim data for 8 days. Is this a normal timeframe for a small company with 35 subjects?

    1. On 2025-10-03 15:37:19, user Clemence Fraslin wrote:

      This preprint has now been published in Genetics Selection Evolution in August 2023. Would it be possible to add the link to the published version? Thanks

      Fraslin, C., Robledo, D., Kause, A. et al. Potential of low-density genotype imputation for cost-efficient genomic selection for resistance to Flavobacterium columnare in rainbow trout (Oncorhynchus mykiss). Genet Sel Evol 55, 59 (2023). https://doi.org/10.1186/s12711-023-00832-z

    1. On 2017-08-04 22:08:43, user Ailong Ke wrote:

      Page 9, line 11: "Ku and Csn2 bind the same type of substrate - linear double stranded DNA [ref] - and might thus interfere antagonistically". What is the rationale here to only cite the 2013 Arslan study in NAR, but omit the earlier 2011JBC study on the structure-function of Csn2? The title of the 2011 study states"Crystal Structure of Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-associated Csn2 Protein Revealed Ca2+-dependent Double-stranded DNA Binding Activity". Ku is not the only other protein that binds to linear dsDNA.

    1. On 2025-10-14 15:48:16, user Asya Makhro wrote:

      Thank you very much for your comment, we greatly appreciate your interest in our preprint.<br /> Our publication focuses on the nonimmune incompatibility between two species, which is why we concentrated on compromised oxygen delivery between mother and fetus. I have read the paper you mentioned and completely agree that multiple mechanisms were most likely involved in the decline of archaic populations. While Piezo1 also defines a blood group, the amino acids responsible for blood group type are located in the extracellular domain and do not influence Piezo1 channel properties (PMID: 36122374, Figure 4) or, consequently, RBC metabolism.<br /> The choice of the Ser307Gly variant was inspired by Svante Pääbo’s lecture, in which he compared archaic protein variants with modern ones based on 1000 Genomes data. A list of the proteins can be found in the supplementary materials of PMID: 24679537. At that time, protein alleles with low frequencies (<1%) were not detectable in such a small sample of modern genomes.<br /> The Ser307Gly variant appears to have undergone negative selection. For example, the archaic allele of a Piezo1-linked gene, MC1R, reached up to 70% in some East Asian populations (PMID: 24916031), but the archaic Piezo1 variant is absent in these individuals, as genomic data were obtained from the 1000 Genomes Project. Another archaic allele of Piezo1, E1839K, is preserved at higher frequencies. I did not verify this variant in archaic genomes, but its designation as archaic is based on comparative analysis. Approximately 5% of Asians (gnomAD) and all other modern hominid species carry K instead of E, reflecting a prevalence rate more consistent with neutral expectations for an archaic allele.<br /> Thank you for mentioning Denisovans. I did not examine their sequence, but I would expect that most archaic humans carried this variant, particularly if our hypothesis regarding the reproductive barrier is correct.

    1. On 2018-06-12 22:07:46, user J7614 wrote:

      This is interesting study to demonstrate in vivo mammalian UPRmt in heart physiology. Authors pointed out not only the good points of the study but also the limitations which is to be appreciated. But I have several questions regarding the study:

      1. Although UPRmt is generally defined as a transcriptional program, one can think the effector is protein since the essence of UPRmt is 'proteostasis'. Thus I wonder if the authors checked the increase of protein level of known to be the players of UPRmt--HSPD1, HSPA9--in the time frame of the protective effect (6h).

      2. ATF5 targets not only UPRmt genes but also others related to many different cellular pathways (PMID: 29137451). Moreover, a recent study reported that doxycycline induce ATF4, rather than ATF5 in mammalian cell culture (PMID: 28566324). In any case, this means there are other possibility that doxycycline and oligomycin exerted its protective effect through pathways other than UPRmt, which could also be regulated by ATF5. How can authors nail down the conclusion to such from the observation in the study?

      3. Mammalian UPRmt players in the mitochondria, are yet to be determined fully comparing to those of c.elegans. But still there are other known UPRmt players, especially mitochondrial proteases--CLPP, LON at least in c.elegans. If the authors can provide the expression level of the comprehensive players of UPRmt, it'd bolster the conclusion of the study.

      4. In the 1st paragraph of the discussion section, ref. 34 noted that protein synthesis is the top priority of consuming ATP pool. However, the authors cited the reference to argue that the very process is low priority, thereby oligomycin didn't elicit mortality. Moreover, ref. 34 didn't mention anything about protein import. I wonder if I understood correctly.

      Overall, this is interesting study and I look forward to the future findings.

    1. On 2021-12-09 11:54:09, user Jonathan D G Jones wrote:

      This is a really interesting paper - just did it for our journal club. Here's a suggestion. The recent Jijie Chai paper on 2'3' cAMP formation from TIR proteins implicated a key catalytic cysteine 3 aa before the catalytic glutamate. That is present in all the examples in Fig 1C except in the TNP proteins. That's likely why the TMP TIR domains don't activate defence. Authors should highlight that Cysteine as well as the glutamates, and should comment on that possibility

    1. On 2021-05-20 17:14:04, user Tanya Whitfield wrote:

      Congratulations on this beautiful work.

      The ‘unknown structures' that you have imaged in the olfactory epithelium and skin in Suppl. Fig. 32 are rodlet cells, which have been described in several previous papers, including in the zebrafish. See: <br /> Hansen and Zeiske (1998) The Peripheral Olfactory Organ of the Zebrafish, Danio rerio: an Ultrastructural Study. Chem. Senses 23: 39-48<br /> DePasquale, J. A. (2020). Tropomyosin and alpha-actinin in teleost rodlet cells. Acta Zool. 00, 1–10. doi: 10.1111/azo.12344

      We included some discussion on rodlet cells in our recent paper on a different cell type, olfactory rod cells, which have a single actin-rich projection (and are also visible in your Suppl. Video 14). See Cheung et al. (2021). Olfactory Rod Cells: A Rare Cell Type in the Larval Zebrafish Olfactory Epithelium With a Large Actin-Rich Apical Projection. Front Physiol. 12:626080. doi: 10.3389/fphys.2021.626080<br /> PMID: 33716772

    1. On 2019-03-03 15:21:30, user Stef Garasto wrote:

      This is a pre-print of a paper with the same title accepted by the IEEE conference on Neural Engineering 2019 (NER2019).<br /> Copyright 199x IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

      • Stef Garasto (first author)
    1. On 2020-12-13 21:18:43, user Patrick Sexton wrote:

      I have some questions where additional information would help me interpret the presented data:

      The in vitro experiment is poorly described and does not appear to be robustly performed...<br /> What is the scale (axis labels)? Is this an accumulation assay (+IBMX)? <br /> Were the data converted to actual cAMP levels?<br /> How long is the antagonist pre-incubation? How long is the total stimulation with GIP?<br /> This looks like a single experiment with duplicate repeats - what is the experimental "n"?

      Is there anything known of potential activities of the antagonists for other signaling/regulatory processes for the mGIPR (e.g. pERK, receptor internalisation)?

      Caveat on the next comments - I am not a physiologist, so it might just be my ignorance: <br /> Fig. 1H. Why does the GIP2-A antagonist "increase" blood glucose in the IPGTT in fasted, lean mice? Isn't this experimental design supposed to bypass the endogenous GIP response?<br /> Fig. 1J. Why does exogenous mGIP stimulate insulin secretion in 4 h-fasted lean mice, prior to IP glucose bolus? Why is there no rise in insulin secretion with mGIP with high glucose from the IP bolus? Is the administered GIP below effective concentration by this time?

      It would also be good to understand the metabolism and clearance of the antagonists used in the chronic studies.<br /> What is the mouse PK on the GIP1-A? On what basis is the claim made that the osmotic mini-pumps will maintain an effective antagonist dose? Where is the evidence that this occurs?

      What is the mouse PK for the GIP2-A? How does this compare to the PK for liraglutide?

    1. On 2023-10-23 04:54:51, user David Davies-Payne wrote:

      In Box 1 - on Haptoglobin

      The gut permeability marker zonulin, which is reduced in the post-acuteCOVID condition multisystem inflammatory syndrome in children (MIS-C) (Yonker et al. 2021) is the precursor for haptoglobin-2.

      Should that read "elevated"?

    1. On 2018-12-14 13:28:47, user David Curtis wrote:

      Especially interesting to see NRXN3 and KMT2C in list of genes with recurrent de novo protein truncating variants in schizophrenia. Both very similar to genes previously implicated (NRXN1 and SETD1A).

    1. On 2017-11-20 16:42:28, user Evelien Adriaenssens wrote:

      First of all, thank you for creating this package! <br /> In the R vignette, I saw that the negative control libraries of the example had a lower read count than the true samples. In my experience, this is not always the case. When working with low biomass samples, the presence of inhibitors in the actual samples can give lower read count than in negative controls. Do the statistics still hold up in these cases? Or should other settings be used? <br /> (You might have addressed this in the paper and I might have just missed it)

    1. On 2022-04-06 07:33:18, user David Smith wrote:

      X- ray and gamma-ray radiation interacts with either the bond between the innermost electrons in an atom (photoelectric absorption), with the electrons individually without regard to their presence in an atom (Compton scattering) or, if the energy is high enough, with the high electric field in the immediate vicinity of the nucleus to convert to an electron positron pair. None of these mechanisms cares about the chemical bonds between the atoms, so there can be no meaningful difference between 1 g/cm2 of melanin and 1 g/cm2 of pretty much any other organic compound. (This is not necessarily the case for charged particle radiation, like the deuterons in reference [33]). The chemical formula of melanin is C18 H10 N2 O4, which has no high-Z elements in it that could enhance x- and gamma-ray attenuation, as noted (with no reply) by VGR Subramanian. I'm elaborating here for future readers. In the current version of the article the authors back off slightly from their claims, but they still ignore the basic physical mechanisms that imply that organic material is organic material as far as x- and gamma- radiation shielding is concerned. Whether it is living material, melanin, etc. cannot make it perform better than any other random slab of CHNO compounds. To suggest otherwise would require a standard of proof high enough to justify overturning 125 years of settled physics on the interaction of radiation with matter.<br /> -David Smith<br /> University of California, Santa Cruz

    1. On 2024-08-08 13:15:41, user F. Laclé wrote:

      Also, if you can publish your model code in a repository would be great for reproducibility (the model itself is not necessary I reckon). As you know, there are much more system configuration elements to consider, which makes reproducibility efforts complicated. Publishing your model code would allow others to attempt and improve the reproducibility challenges.

    1. On 2020-12-25 23:03:38, user Björn Brembs wrote:

      This is a very interesting piece of work on a behavior that couldn't be more iconic, insect flight. Congratulations!<br /> I only have a short remark about a citation of two of our publications:

      In line 415-418 you write: "PKC-d, a member of the Protein Kinase C <br /> family and is known to modulate flies ability to learn from their <br /> environment, especially during flight."<br /> WRT our two publications, the Gorostiza et al. paper does not treat PKC at all, and Colomb and Brembs is work on not learning from the environment, but the opposite of what you write, the fly learning about its own behavior without any other environmental cues.<br /> Best regards,<br /> Björn

    1. On 2020-05-31 21:10:36, user Simon Anders wrote:

      Dear Authors

      may I ask a question about your Supplementary Figure 5?

      I have tried to understand your estimate of sensitivity and specificity, as shown in your Figure 1e. You state a sensitivity of 95.6%, i.e. you detected 66 of your 69 positive samples, and a specificity of 99.2%, i.e., you correctly called negative for 131 of your 132 negative samples (69*0.992=66 and 132*0.992=131), and you state that these values were found when using a decision threshold of 11,140 quantiflour units.

      However, if I draw a line at 1,1*10^5 in your Supplementary Figure 5, I see a larg part of the dark red dots (i.e., of the positive samples) below the threshold (i.e., as false negatives). And if I lower the threshold to get most positive samples above it, I would get very many false positives (gray dots above the threshold). So, this Supplementary Figure 5 cannot be what gives rise to your ROC curve in FIgure 1e. Then, what is it? And do you also have the plot of quantiflour results versus qPCR result that gives rise to the ROC curve?

      I'm probably just reading your plot wrongly, but I can't figure out how these two figures don't contradict each other.

      Thanks in advance for an explanation.

      Simon

    1. On 2019-05-07 14:12:56, user Zaved Hazarika wrote:

      Dear Marziyeh<br /> I have performed a similar work. However in our MD of ZnO NP in water (4nm,2838 atoms, Amber99sb ff), all same parameters considered, the ZnO NP is not getting stabilized over 100ns time. Can you kindly provide your raw data to cross check with ours?<br /> Regards<br /> Zaved Hazarika<br /> Research Scholar<br /> Dept.of MBBT,<br /> Tezpur University<br /> India<br /> email:zaved@tezu.ernet.in

    1. On 2022-01-11 18:03:29, user Krishna C. Aluri wrote:

      The authors presented an interesting work to understand the role of mitochondria in multiple sclerosis (MS) progression. The current therapeutic strategy largely focuses on the management of immune response there is an unmet need for better understanding progression and developing novel strategies to slow down disease progression. The authors took a methodical approach and demonstrated that by reviving mitochondrial activity by overexpressing Pgc-1? in an experimental autoimmune encephalomyelitis mice model (EAE) they were able to rescue the EAE mice better than the WT mice.<br /> For their EAE mouse model, the authors used C57Bl mice immunized with myelin oligodendrocyte glycoprotein 35–55 peptide. Even though this model was widely used to understand multiple sclerosis, it is understood that the model is monophasic i.e. there is no clinical progression of disease after onset as presented in humans. It would be interesting to see how other EAE models such as Biozzi ABH mice respond to Pgc-1? overexpression especially on the relapsing episodes. The cuprizone model is another interesting model where mitochondrial density increase was similar to post mortem MS pathophysiology.<br /> The authors did show induction of Pgc-1? increased calcium clearance, but they did not study the effect on ATP production. It will be informative if they can compare ATP levels in Pgc-1? induced and wild-type cells.

    1. On 2023-01-07 22:12:55, user Francisco W. G. Paula-Silva wrote:

      This manuscript has been published. Please find the reference as follows: Lorencetti-Silva F, Arnez MFM, Thomé JPQ, Carvalho MS, Carvalho FK, Queiroz AM, Faccioli LH, Paula-Silva FWG. Leukotriene B4 Loaded in Microspheres Inhibits Osteoclast Differentiation and Activation. Braz Dent J. 2022 Sep-Oct;33(5):35-45. doi: 10.1590/0103-6440202204827. PMID: 36287497; PMCID: PMC9645171.

    1. On 2014-06-06 03:01:37, user Darya Vanichkina PhD wrote:

      Thank you for the very timely and interesting paper!

      Could you please clarify, in the methods, when you say you used htseq in "intersection" mode, was that "intersection-strict" or "intersection-nonemtpy"?

    1. On 2020-05-07 23:28:08, user clorene wrote:

      WHO is collecting information about the coronavirus and spearheading efforts to find a vaccine. This preliminary report should be shared with the World Health Organization for a "peer review."

    1. On 2016-05-28 10:08:11, user Mustafa Abeer wrote:

      Why I feel that study design should have included SD rats not exposed in utero? It seems that, study was more appropriate to warn pregnant females of not excessively using cell phones.

      RFRs loose energy as they go away from antenna. Is there any specific distance from the living organism/tissue considered to cause this low incidence of brain and heart tumors? It may be important to verify that the phone at a distance should be safe while it isn't being used.

    1. On 2018-01-13 11:46:29, user Grimm wrote:

      Nice data. Like the result.

      Two ideas regarding enhancing the presentation to appeal to a more general audience. The current figures are all quite complex. Fig. 2 being a good example: A and B show essentially the same (A being the more important representation for the text, I think, so B could be moved to a Fig Sx; which gives more place for A). Legend misses the meaning of lowercase a,b,c,d,e and their colour codes. If you want to keep A and B, the scale should be the same.

      Missing is also a simple representation of the main result (level of inter-species admixture). Would it be possible to make a pie chart for each of the four species showing the proportion of shared genetic traits (genes)?

      With respect to the candidate genes incongruent to the phylogeny, there should be a map in the main text indicating the geographic spread of the analysed samples in south-western France, maybe using the geological map as background and/or the new high-resolution Köppen map (maybe too coarse in your case?) of the Vienna group (http://koeppen-geiger.vu-wi... "http://koeppen-geiger.vu-wien.ac.at/present.htm)"). Something relating to the association you mention: robur - northern/Cf/moist, petraea - northern/Cf/dry(er), pyrenaica - southern/submediterran/acidic, pubescent - southern/mediterran(Cs?)/limy .

      Finally, regarding species identification

      I take that the sequenced individuals were morphologically straightforward to identify. Is it possible to produce any morphological/morphometric data to illustrate this for the sampled individuals, e.g. to do a PCoA showing the individuals grouping in four seperate clusters/clouds? It would give the preferred scenario (secondary contact) an easy-to-grasp backup. The species isolated and evolved characteristic morphologies, which remain stable in the local context (near ? sympatry, a map would really be nice) despite the secondary gene flow. Hence, they are good species and not subspecies or ecomorphotypes (see the papers by Mallet on species concepts)

      Cheers, Guido

    1. On 2023-04-01 23:15:29, user Vitaly V. Ganusov wrote:

      Review of the paper by Shin et al. “Lung injury induces a polarized immune response by self antigen-specific FoxP3+ regulatory T cells “ (MICR 603 Immunology JC)

      Summary.

      We know that central tolerance – removal of T cells specific to self antigens – is not 100% efficient and some self-reactive T cells do accumulate in the periphery. This leaky process is likely responsible for some autoimmune reaction observed in humans. However, how such self-reactive T cells are activated remains poorly defined. The authors developed an interesting system where they have T cells recognizing a specific antigen that was engineered to be expressed in lung epithelial cells (OVA + 2W + gp66). By using the antigen with several epitopes this allows to investigate how T cell response to one of these epitopes impacts endogenous immune response to other epitopes. Interestingly, authors found that transfer of T cells specific to gp66 epitope into mice does not result in inflammatory response to 2W epitope by endogenous, 2W-specific CD4 T cells. Instead, the authors observed expansion of 2W-specific Tregs. Response was different in the lymph vs. lung. Interestingly, after primary response, immunization with 2W peptide with an adjuvant did not result in expansion of conventional, 2W-specific T cells indicating induction of tolerance. Expansion of 2W-specific Tregs was also observed by intranasal inoculation of LPS into mice. Overall, this study provides an interesting view on how ongoing immune response may influence response of self-specific CD4 T cells.

      Positive feedback.

      There are a lot of interesting things about this paper. First, the system to have lung-restricted antigen that has several well defined epitopes is highly innovative. The methodology to accurately count the number of naive T cells in the whole mouse (we talk about 10-100 cells per mouse!) is impressive. Looking at endogenous response, without transfer of monoclonal TCR-Tg T cells is really fundamental. The way how authors look at two tissues - lymphoid (lymph nodes) and lung - is important. The use of LPS injection as a model for lung injury is interesting as it also allows to look at actual pathology (mouse weight) as a medically relevant read-out. The text is short (perhaps in some places too short, see below for comments) and figures are relatively clear (see comments). Having an experimental layout for how the mice were treated, along with what was harvested for each experiment was very useful. Finally, having many different lines of mice is very impressive!

      Major Concerns

      I do not understand how transfer of naive T cells results in pathology in the lung (Fig 1 results). Per basics of immunology, 3 signals are needed to activate T cells - i.e., there is a need of inflammation to induce immune response and trafficking to the lung. Perhaps activated T cells were transferred but that was not clear from experimental design in Fig 1. Authors must provide better rationale of how transfer of naive T cells causes IgM in BAL to increase. Tracking immune response of transferred cells (e.g., activation markers, division history by CFSE, cell numbers in LNs/spleen over time) would be needed. Also, it would be very important to perform titration experiments to show how the number of transferred T cells impacts pathology. Similarly, why day 7 was chosen as the point to measure the endogenous response was not clear.

      While measurements of T cells in lymph nodes and spleen are typically efficient (most cells are recovered), isolation of activated T cells from nonlymphoid tissues, especially the lung is highly inefficient and may be biased (some subsets could be better isolated than others, PMID: 25957682). Confirming the results of Treg bias in lung samples must be done with using microscopy. Furthermore, when T cells are isolated from tissues due to contamination with the blood, cells in the circulation may be detected as in the parenchyma (24385150). Experiments must be repeated to include intravascular staining to separate cells in the blood vs. parenchyma to indicate that Tregs in the lung are in fact in the lung.

      I found it weird that the authors claim that 2W-specific Tregs are responsible for suppression of endogenous responses to 2W upon antigen+adjuvant injection and yet, depletion of Tregs did not result in a new response. A simpler interpretation is induction of anergy in endogenous T cells upon exposure to Ag in the absence of strong inflammation. Text must be carefully curated to avoid bias towards one favorite explanation.

      Focus on SLOs and lung is clear but I wonder if using another control peripheral tissue that did not express the antigen could be useful. For example, measuring T cell accumulation in the liver may be a useful control.

      It was not clear if expression of OVA is actually restricted to the lung. Perhaps some more thorough analysis of other tissues would be helpful to verify the absence of leakiness of the gene expression.

      Minor concerns

      Having numbers for lines in the paper could allow for better referencing to specific statements made in the paper.

      While for most immunologists Tregs are FoxP3, some younger researchers may not know this. Mentioning that this is how you define Tregs would be useful. Also, assessing the function of these T cells would be useful.

      Please do not use “ns” or “**” to denote statistical significance. Use actual p values, e.g., p=0.34 or p=0.012. Additionally, indicating fold difference between groups (effect size) could be also useful.

      In introduction: Whether autoimmune responses are driven by naive T cells or by cross-reactive memory T cells is unclear. Cross-reactivity may be a simpler explanation given that memory T cells may require lower thresholds for activation.

      Authors should describe better different epitopes used in the construct, e.g., gp66 is from LCMV.

      Why did authors use gp66-specific CD4 T cells and not OVA-specific OTII cells? Are the results the same is using T cells of a different specificity?

      Are the detected Tregs derived from the thymus or are these “converted” naive T cells to the Treg phenotype? I don’t think that the current data allow to discriminate between these alternatives.

      When indicating difference in expansion in the Results section, please indicate how much (how many fold) is that expansion.

      How is the lung injury by LPS dependent on the LPS dose? Perhaps this needs to be discussed.

      I wonder that measuring kinetics of response, e.g., before day 7 and after, may be useful. We know that exposure to self antigens typically results in deletion of naive CD8 T cells (10843383)

      Which specific LNs were isolated? This probably should be listed in materials and methods section.

      I wonder if plotting some data as paired (e.g., Fig 1 - 2W vs. SMARTA) could reveal some additional information.

      How were Tr1 cells gated? Some flow cytometry graphs may be useful here (Suppl Fig S2)

      Suppl Fig 3 would benefit from experimental design panel.

    1. On 2017-05-06 00:07:15, user Ruslan Soldatov wrote:

      Dear Authors,

      nice job with aligning trajectories! I have a technical concern about terminal branch F1. If it emerges predominantly because of the cell cycle signature, it can reflect cell cycle-induced heterogeneity, but not differentiation outcome. Did you try to reproduce this branch after removing cell cycle effect?

    1. On 2023-09-04 10:54:36, user Monika Cikeš wrote:

      It is an interesting article, especially since it combines in vitro and in vivo research. However, I could not find the number of mice in the study, which would add more value to the research. Moreover, it would be interesting to investigate the role of ? and ? subunits of AMPK on other cervical cancer cell lines.

    1. On 2020-10-26 22:10:00, user David Ianova wrote:

      The authors write "we did not recombine any species name in the LCVP" but I can see hundreds of "comb. ined.", e.g. Silene saxosa (A.P.Khokhr.) comb.ined.<br /> Also the automated matching seems to create many errors. e.g. Melandrium gracile Tolm. (from Siberia) is listed as a synonym of Silene gracilis DC. (from the Medit.), clearly a lot more work is needed to make this scientifically defensible.

    1. On 2025-08-26 09:21:59, user Constant VINATIER wrote:

      Feedbacks about your preprint : https://doi.org/10.1101/2025.07.23.666382

      About registration: <br /> We could not find any information about the pre-registration of your study in the pre-print. Pre-registration involves documenting the hypotheses, methods, and/or analyses of a scientific study prior to its conduct (10.1073/pnas.1708274114; 10.1038/s41562-021-01269-4). If your study was pre-registered, we strongly encourage you to include the registration number in the pre-print, ideally in the abstract make this important information easy to retrieve, as this practice enhances transparency and reproducibility. If the study was not pre-registered, this should be acknowledged as a limitation. For future studies, we recommend pre-registering on an appropriate repository.<br /> About Protocol Sharing: <br /> We did not find the protocol for your study. If you have one, we encourage you to share it as supplementary material or deposit it in a publicly available repository such as the Open Science Framework ( https://osf.io ) or Zenodo ( https://zenodo.org/) "https://zenodo.org/)") . You can then include a statement in the Methods section indicating that your protocol is openly available (e.g., 'The protocol for this study is available at (link)/ in the supplementary'). Sharing your protocol will help readers better understand your study and enable them to reproduce it if they wish to test it.<br /> About the Statistical Analysis Plan Sharing: <br /> We did not find the Statistical Analysis Plan (SAP) for your study. If you have one, we encourage you to share it as supplementary material or deposit it in a repository such as the Open Science Framework ( https://osf.io ). You can then include a statement in the Methods section indicating that your protocol is openly available (e.g., 'The SAP for this study is available at (link)/ in the supplementary'). Sharing your SAP will help readers better understand your study and enable them to reproduce it if they wish to test it.<br /> About Deviations and/or changes<br /> We could not find any information about potential deviations or changes to the protocol in your pre-print. Since such deviations are common, if this applies to your study, we strongly encourage you to include a subsection titled Changes to the Initial Protocol in the Methods' section and discuss these changes as a potential limitation of your results. If any deviations occurred during your study, please specify them in this new subsection.<br /> About Data sharing / FAIR Data<br /> We found insufficient information about your data sharing approach. Data should be findable, i.e. data are to assigned a globally unique and persistent identifier (for instance there is a DOI assigned to the dataset, or data are registered or indexed in a searchable resource). Data should also be accessible, i.e. data are retrievable by their identifier and can be accessed following an open, free, and universally implementable protocol. As your data id not sensitive data, we encourage you to share it openly on a data sharing repository (Dryad, etc.) and include the Digital Object Identifier (DOI) in the Methods section. If you want more information about good practices of data sharing, visit https://www.go-fair.org/ <br /> About Code sharing<br /> We could not find any information about your (statistical) code. Sharing code is important for enhancing transparency and reproducibility, especially since it does not contain sensitive information. We encourage you to openly share it on a code sharing platform (Github, Codepen, CodShare, etc.) and include the Digital Object Identifier (DOI) in the Methods section. If you want more information about Code sharing https://fair-software.nl/ .

    1. On 2024-01-18 16:00:45, user Richard H. Ebright wrote:

      ACE2 humanized mice are the standard experimental model, and best-available experimental model, for assessing pandemic potential of SARS coronaviruses in humans.

      ACE2 humanized mice possess human SARS-virus receptors and are studied, expressly, because they can predict infectivity, pathoigenicity, and pandemic potential of SARS viruses in humans. "Normal" mice do not possess human SARS-virus receptors and therefore cannot, and do not, predict infectivity, pathogenicity, and pandemic potential of SARS viruses in humans.

      If the authors actually believed the claim that "outcomes cannot be applicable to humans" they would not have performed the research, and they would not have written "This underscores a spillover risk of GX_P2V into humans."

    1. On 2020-06-06 01:35:56, user azhao wrote:

      The title of this report gives an impression that this report has discovered the origin of the novel Croronavirus that causes COVID-19 disease. But it does not: "For these reasons, we cannot rule out an origin for the clade of viruses that are progenitors of SARS-CoV-2 that is outside China, and within Myanmar, Lao PDR, Vietnam or another Southeast Asian country". The title could be more specific to the work. which is using "a phylogeographic Bayesian statistical framework to reconstruct virus transmission history between different bat host species and virus spatial spread over evolutionary time".

      Under "Ancestral hosts and cross-species transmission" section: "The phylogenetic reconstructions for ?-CoVs in China suggest an evolutionary origin within rhinolophid and vespertilionid bats (Fig. 2A)". And later, "Chinese ?-CoVs likely originated from vespertilionid and rhinolophid bats (Fig. 2B)". So both ?-CoVs and ?-CoVs are likely originated from the same two kinds of bats?

      Near the end of Discussion section, "Importantly, the closest known relative of SARS-CoV-2, a SARS-related virus, was found in a Rhinolophus sp. bat in this region(20)", What is "this region"? There is no context to show the name of "this region".

      A question about Figure 1.B Map of China provinces, why the CoVs sequences for Shanghai and Jiangsu are not available?

    1. On 2020-07-03 16:41:10, user Laura Sanchez wrote:

      Dear Eldjárn et al, this preprint was discussed in a lab meeting and we would like to offer the following for review. Thank you for posting this very interesting manuscript. Best, The Sanchez Lab

      The manuscript by Eldjárn et al. describes the development of a computational method to enable large-scale linking of gene cluster families (GCFs) and molecular families (MFs). This method uses multiple complementary scoring functions, combining both feature-based and correlation-based approaches, which, the authors state, allows for more effective prioritization of valid links between GCFs and MFs than using the individual scoring functions. The manuscript provided a very nice summary which integrated information from many different fields to set up the problem they were trying to address in the introduction. However, the utility of this method could not be tested as the documentation was absent from the repository links and the manuscript could benefit from a concrete example (actual metabolite linked to a specific BGC) to more effectively show its advantages over current techniques. Below is a list of major and minor critiques for this preprint.

      Major:

      Figure 1 could be re-done to better visually demonstrate the problem the authors are trying to address. For instance, a box around the higher scoring population would be helpful for the reader to understand the problem as the numbers in the figure legend are difficult to correlate to the visual. The purpose/conclusion for Figure 1B is unclear. Moreover, Figure 1B is unrelated to 1A and out of order in terms of where IOKR was discussed in the manuscript.

      Figure 2 shows a problem with the range of the expected value and variance (which varies with GCF and MF size) before standardizing the correlation score, yet, there is no chart to show how this changes after the correlation score is standardized. The authors should consider adding charts to show how this changes after the score is standardized, as well as an interpretation to help the reader understand why this change was necessary. For example, it is unclear whether a yellow (high) or blue (low) score is more desirable and it is unclear what the ideal distributions would look like. Additionally, the scales on the charts are inconsistent and make them difficult to interpret since they utilize the same color gradient. We suggest labeling the scale high-low rather than numbered if the values are not comparable. The authors should consider inverting the Y axis so it starts with zero at the bottom and increases as you move up the chart.

      It is unclear how Figure 1 and Figure 2 are related. Is Figure 2 explaining how the problem in Figure 1 was fixed? If so, the authors should consider combining the two figures such that Figure 1a and Figure 2 are combined and Figure 1b is presented later in the text along with the section discussing IOKR framework.

      The authors should consider using more concise language to help communicate the utility and limitations of this method more effectively. For example, the authors should use the term “bacteria” instead of “microbe” because the databases feeding into the program are heavily biased toward bacterial metabolites, and fungal metabolites are not well represented nor are they in the three datasets tested in the manuscript. It would also be worth considering giving the new score introduced in this manuscript a name, and referring to it by that name throughout the paper to avoid confusion.

      This manuscript could benefit from a concrete example (actual metabolites linked to specific BGCs). A firm example with compound names linked to a specific gene cluster would help the reader evaluate how well the method performs compared to traditional methods. The manuscript does evaluate the performance of this technique using “verified hits”, but the identity of those hits and how they were verified remains unclear (unless the verification was the original report, which was also somewhat unclear). For example, the BGC listed at the top of Figure 6 (BGC0000137) encodes rifamycin, a commonly known bacterial metabolite. The authors should consider revealing the identity of at least one verified metabolite and providing a list of “hits” for the BGC encoding that metabolite with associated scores. This would allow readers to more effectively evaluate the new scoring method and determine what a “good score” looks like. A good choice for an example would be a metabolite/ BGC pair where a link was observed using this method and not other methods..

      We appreciated that the authors discussed the data dependent limitations. They were apparent when reading the manuscript, and although they were briefly addressed in the discussion section, they might be more thoroughly discussed. The authors should consider drawing attention to biases toward specific organisms or metabolite classes in the databases feeding into the program, and discuss how those biases might affect the results and limit the usefulness of this scoring method to specific applications.

      In Figure 6, for BGC0001228, it appears as though IOKR alone provided a higher score for the verified link than the combined score. Can the authors comment on the features of the data that led to this anomaly, and provide suggestions on how to determine the best scoring method?

      We are excited at the prospect of using this tool. At the time we accessed the paper for discussion on 6/23, NPLinker did not have any documentation in the github repository so we were not able to evaluate how well it functions. The authors should provide comprehensive documentation. Additionally, a figure outlining how to use NPLinker to analyze a real dataset would be helpful, either in the manuscript or documentation.

      Minor:

      The metabolite used as an example in the introduction (C35H56O13) has a very unique molecular formula which is easy to link to a BGC (if the metabolite product is known), for example, NP Atlas only returns one hit for this molecular formula. The authors should consider picking an example that would have multiple hits.

      The bottom of section 2.2 states “In the case of Figure 1, the standardised scores<br /> are 0.0 and 2.65, favoring the right-hand pair”, but in Figure 1 the two scenarios are positioned vertically, not horizontally.

      The caption for Figure 5 says verified links are colored green, but in the figure they are red.

    1. On 2019-01-23 10:38:42, user Nour Alhanafi wrote:

      Thank you for the nice explanation of KPG-miner tool and its application. Pathway analysis is very important for gaining insight into the biology of deferential expressions in different conditions and increasing the explanatory power. However, there is so far no consensus definition of a pathway. Furthermore, different pathway databases have different representation of the same pathway, sometimes lack the contextual information and may even have some contradictions. I believe this tool may help the researchers, with no programming knowledge, analyze their high-throughput experiment results. However, in my opinion, it is still not sufficient to have one database as a resource to interpret the results. I think it is better to integrate the knowledge deposited in the major pathway databases. Therefore, I suggest you extend KPG-miner tool to aggregate functional annotations from many pathway databases.

    1. On 2020-01-26 23:06:15, user rikster wrote:

      R naught has almost no predictive value. Post mortem value only. For example, it never takes seasons into account, Norovirus for example. Its not only seasonal but the British call it Winter Vomiting Disease and they euphamize most everything!

      Influenza is highly seasonal and its not one bug either. In fact its practically a variant or multiple variants for every infected person. What's its R naught? It depends not only on the bug but events in the season which we at welloinc.com have the data organized to show. We saw Wuhan on December 30th go through a low friction few days for big spread. Twice again in January. With a 10-14 day incubation period (spitballing), the events combined were resonant and hence the beginning of the epidemic. We see more to come. We can only see 3-5 days ahead. The problem with knowing this is the problem of the invisibility of infection. Countdown 10-14 days to knowing how things went. Right now we expect events from last week to see large upticks of cases in early February.

      Not pretending to know much about this new coronovirus but the events that drove Wuhan are different than SARS2003. That SARS2003 blew up in and around South China gave it friction for spreading. I have all the indoor humidity data from 2003, most cities in the world. You'll see Toronto with very little friction, Hong Kong in March with three periods of low friction (high spread). You'll see the ease of spread at Amoy area (sewerage leak) and the days where the ease of spread at Prince of Wales led to two big waves in the hospital to visitors and health care workers.

      We automated the marvelous work that Singapore did with SARS in 2003. They shut it down faster than any other country. They did it at borders, schools and hospitals. Turned out that except for one case, all the cases came from non-patients at hospitals.

      This is a standard of care in some hospitals in the US. Also childcare and jails. www.welloinc.com for more informaiton rik.heller@welloinc.com . Put an exclamation mark or mark it important so I'll notice it over my daily deluge. Rik

    1. On 2023-01-30 14:31:40, user Leduc cécile wrote:

      "In vitro, they used a fixed vimentin-Y117L mutant, which stopspolymerizing at ULF stage." No, we used this mutant in cells, not in vitro. Please read more carefully the paper from Vicente et al and correct your statements which are not accurate.

    1. On 2025-10-31 06:25:41, user xiaojun_ wrote:

      I’m curious, how do you control for sampling bias in geography or collection time, given the uneven GISAID data? And do you think this SHAP-based framework would still hold up for viruses with strong recombination signals like SARS-CoV-2?

    1. On 2020-12-15 04:51:49, user Jaelyn Rae wrote:

      Does this suggest how Covid-19 might impact those with rare metabolic conditions, such as acute hepatic Porphyrias, or more specifically, Hereditary Coproporphyria? Would the metabolic disruption caused by Covid-19 cancel the overproduction of porphyrins in those with these rare genetic mutations?

    1. On 2017-03-07 11:34:27, user Micheal H wrote:

      I enjoyed reading this paper, I like it. My rudeness isn't coming from a dislike of your paper it's coming from confusion and anger. What's the point of sequencing 127 genome from Neolithic peoples who we already have plenty of DNA from? Why not expand passed Eastern Germany, Hungary, and Northern Spain? Why are you guys so stuck on those locations?

      What was the point of this paper? What new discoveries did it make? To be honest it was a complete waste. Your skills would have been put to better use getting Neolithic DNA from regions other than Eastern Germany, Hungary, and Northern Spain.

      Maybe try the Ukraine or Syria or Iraq or Italy next time.

    1. On 2020-01-31 21:32:38, user Jason Weir wrote:

      I blasted each of the four 2019 - nCoV inserts shown in Table 1 and received 100% identity with a number of other hits other than HIV-1. For example, BLAST-P results for insert RSYLTPGDSSSG received 100% identity with Spike glycoprotein from a bat coronovirus with Genbank accession number GenBank: QHR63300.1. It is thus much closer to a known bat coronovirus than it is to HIV-1. Likewise each of the other three inserts have 100% amino acid identity to other non-HIV sources. The paper is thus highly misleading in that it does not discuss the other blast hits to non HIV-1 related sources, some of which have higher similarity than those from HIV-1. The implications of the paper that 2019 - nCoV coronovirus has elements of HIV-1 virus inserted into it should be treated with skepticism.

      -Jason Weir (Department of Ecology and Evolutionary Biology, University of Toronto)

    1. On 2022-01-20 09:38:57, user Martin R. Smith wrote:

      Good to see the caution in using the RF distance here. You might be interested in assessing accuracy using alternative methods that can be used where a "true" topology contains polytomies, such as the information-theoretic generalised RF distances of Smith (2020, Bioinformatics; https://doi.org/10.1093/bio... ) or the uncertainty-adjusted "Similarity to Reference" quartet distance of Asher & Smith (2022, https://doi.org/10.1093/sys... ; implemented at https://ms609.github.io/Qua... ).

    1. On 2020-02-24 23:33:21, user Fraser Lab wrote:

      This manuscript by Jones and colleagues probes the structural and functional consequences of beta-2 adrenergic receptor (ß2AR) mutations through a deep mutational scan (DMS). The authors develop a transcriptional reporter-based assay to test the effects of amino acid positional mutations on ß2AR signal transduction, and further inform their findings with unsupervised learning algorithms to predict functionally critical and structurally conserved GPCR features.

      Studying GPCRs at both a structural and signaling level has the main challenge of GPCRs existing and working as a complex. This limits traditional biochemical and biophysical approaches toward unveiling nuanced structure-function relationships. Individual mutations might affect trafficking/folding, internalization, ligand binding, allostery, and coupling to binding partners (and likely some combination of any of these). The assay here lumps these together by measuring the transcriptional output (induces the transcription of a cAMP-responsive luciferase reporter) upon binding an agonist (isoproterenol).

      The authors use this data to dig into generalizable GPCR mutational tolerance, population genetics to identify the presence of variants of clinical significance, and structurally score positions where mutations alter activity. Most of the paper is written from the perspective that the major outputs are the result of a functioning receptor at the membrane being able to bind to iso and transmit the signal (and we agree that this is the most parsimonious interpretation). However, there is a bit of a missed opportunity to identify outliers that may alter other areas (trafficking, endocytosis, endosome based signalling, which may be relevant for Iso in this system: https://www.ncbi.nlm.nih.go... "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5267521/)"). They also implement unsupervised learning to cluster positions based on mutational tolerance and chemical properties. The results here are not particularly surprising, but nicely distinguishes clusters based on the presumed physical chemical environment and functional constraints. The authors might want to comment on the potential for UMAP-style approaches to work across larger datasets of perturbations (many diverse chemicals rather than dose response of ISO) and what can be learned by changing the problem to clustering the inputs rather than the residues (as we did here by a simpler PCA approach: https://www.ncbi.nlm.nih.go... "https://www.ncbi.nlm.nih.gov/pubmed/30037883)") once more datasets are collected.

      Overall, this provides an amazing benchmark dataset and a few novel findings. The major new finding of the study is an uncharacterized WxxGxxxC motif that is conserved across several species and GPCR subfamilies, in addition to carrying highly mutational intolerant residues. The authors ultimately propose that this "structural-latch" may play a role in stabilizing the extracellular transmembrane region, and potentially ligand binding.

      The major weakness of this work is an experimental follow-up, even if small, to the main hypotheses provided from computational analysis. If mutations to the WxxGxxxC motif show a significant functional impact given the DMS data, and could impact the transmembrane interface for ligand binding based on structural information, why not test those mutations in an assay designed more to isolate that feature? Similarly, there is some discussion and testing of proline mutations on the C-term. These seem primed to alter some aspects of internalization and the interaction with that machinery. Pointing the way forward for how the multifaceted aspects of GPCRs can be dissected with high throughput assays would be enlightening (or pointing out why those dissections remain the purview of low through assays!).

      Minor points/questions:

      ADRB2 variants were synthesized in oligonucleotide microarrays split into 8 segments and integrated into the cell line. Additional details on the scheme and numbers/statistics on coverage, library wt representation, and evenness would be important to discuss and show – especially for reproducibility. (Rubin et al...Fowler, Genome Biology, 2017)

      The authors conduct the DMS experiment under four different isoproterenol conditions and normalize measurements to forskolin treatments. Experimental details on the forsoklin activation in their assay or reference for this treatment would aid in interpreting the normalization approach.

      There is discussion of the mutational tolerance of the intracellular loop ICL3, but what do you hypothesize is the reason ICL1 is generally intolerant of mutations?

      What exactly distinguishes the globally intolerant clusters (clusters 1 and 2) in Fig 4? It seems there is a tighter range of activity to isoproterenol in cluster 2 than in 1 for all mutations and chemical properties, but does this get ranked differently than cluster 1?

      A different color scheme for the logo plot in Fig 6A would improve clarity – it's difficult to distinguish F from L in the WxxGxxxC motif, making it look almost like an E.

      Were all computational analyses done on Class A GPCRs or did you branch out at any point to investigate even more ancestral commonalities shared amongst classes? While ß2AR is a Class A GPCR, a short statement identifying it as such early in the text would be useful.

      Labeling the first structure presented of the receptor in Fig 3E would be useful in orienting the reader.

      We review non-anonymously and have posted this comment on the preprint at BioRxiv, James Fraser and Gabby Estevam

    1. On 2015-12-15 13:51:34, user Leslie Vosshall wrote:

      Nice work!-very cool to expand the role of IRs in biology.

      Here are my comments on the paper, ordered by appearance of line number<br /> in the manuscript not by urgency/priority

      L139 what is the evidence that IR21a is endogenously expressed in<br /> DOCCs? Anything beyond the Gal4 line? Antibody/in situ? My former PhD student Kenta<br /> Asahina was the king of larval in situs, but that was done before the IRs were<br /> cloned!

      L166 did you do a rescue of Ir25a just in the Ir21a DOCCs? Ir25a is<br /> *everywhere* which is a problem for claiming specificity

      L192 I don’t understand how brv1 is showing such a clear phenotype, and<br /> not necessary for DOCC responses. Must be some other cells elsewhere that<br /> require this?

      L195 I thought the conclusion here was overly strong given the strength<br /> of the evidence offered

      L226 This is a great experiment—very elegant

      L216 wondered why you did pan-neuronal Ir21a expression rather than<br /> just go with the much more selective HC>Ir21a. You could consider showing<br /> the HC result in the main figure, and putting the pan-neuronal as data not<br /> shown. Always makes me nervous to put a protein like that into *all neurons*

      L246-253 could equally be a cell biological problem with trafficking<br /> unrelated to any functionally relevant co-factor. I would not be so forthright<br /> here (unless you have the answer in the form of the co-factor in hand already)

      L257-259 I agree with this conclusion. I think Ir25a is receptor for<br /> heat just as much as orco is a sensor for ethyl acetate. It’s the wrong way to<br /> look at this. Of course a ‘co-receptor’ will have a selective phenotype, but<br /> it’s wrong to conclude that it is the subunit responsible for the specific<br /> sensory cue.

      Figure 1 I don’t understand why you are doing huge temperature swings<br /> of 14oc vs 20oc. You say these neurons are extremely sensitive to small changes<br /> in temperature, why not image under those conditions. Also you have the chance<br /> to analyze the kinetics of the response to extract party of the answer. Since<br /> your temperature ramps are slow, you could calculate the onset of calcium<br /> signal and the rise time, etc.

      Figure 2b I found the cartoon very busy and confusing. All I cared<br /> about was what the temperatures at the extremities were and that was not<br /> labeled

      Figure 2c what is navigational bias, not defined?

      Figure 2c are the Ir21 mutants actually PREFERRING the cold?

      Figure 2 general: it looks like you are not doing single animal<br /> tracking here. Can you revise the data presentation to extract additional<br /> information on speed, turning, path tortuosity, etc etc rather than just a<br /> single index number.

      Figure 3 very pretty! But could integrate into another figure because<br /> it’s making a single elegant point, while the other figures are pretty crowded.

      Figures 4-5 my lab had the hardest time with this experiment. We<br /> understand what you are trying to do here, but it’s not easy to explain or<br /> understand. Isn’t IR21a already expressed in these cells? What happens if you<br /> overexpress Ir25a? or Ir8a? Or some other random protein? I worry that the<br /> small bumps in Figure 5d are some nonspecific problem with the neuron. Can’t<br /> exclude that with the current data? It looks like there is still some low<br /> amplitude cycling in Ir21a mutants? (Figure 4d, f). Do you think that’s real?

    1. On 2021-01-16 10:15:47, user Phil Carl wrote:

      This article has now been peer-reviewed and published in the Western Ocean <br /> Journal of Marine Science in 2018. The correct citation of this paper <br /> is:<br /> Laboute P, Borsa P (2018) A feeding aggregation of Omura‘s whale <br /> off Nosy Be, Mozambique Channel. Western Indian Ocean Journal of Marine Science 17, 93-97. doi : 10.1101/311043

    1. On 2020-11-18 06:34:32, user Chaitanya wrote:

      Im curious to see how the authors could distinguish between crowding effects and viscosity. Certainly a fascinating question, since if crowding doesnt reduce dynamics is it drag? <br /> - chaitanya athale

    1. On 2021-10-26 02:22:47, user Lisa Pieterse wrote:

      Very impressive and comprehensive work published on the changing immune landscape as a factor of ageing. Inclusion of immune cell composition and activation states provided an interesting gauge into the diminished nasal mucosal T cell reservoir, and perhaps overdependence on granulocyte function, in older adults. Has your group considered looking into Th17 subset composition amongst colonized and uncolonized children, young adults, and older adults? It would be immensely interesting to see if there would be a difference in Th17 populations within the nasal mucosa of older adults with or without S. pneumoniae colonization especially. As you point out in your paper, your group observed diminished T cell density and activation within older adults (Figures 1C, 1E, 1I), but did not include data on Th17 composition or Th17-producing cytokines such as IL-17, IL-21, or IL-22, although I may have missed this. Thanks in advance!

    1. On 2022-08-24 20:22:59, user Paul Carini wrote:

      Nice paper! I wonder if the extreme mis-estimation of growth rates by DNA or protein SIP could be explained by exuded substances used to form biofilms in soil. DNA and protein are both used to construct extracellular matrices in biofilms. Biofilms are also thought to be an important component of soil microbial communities. DNA or protein that makes it into a biofilm would presumably be labeled by stable isotopes. This could be an example of non-growth related activity that would incorporate a label. Just a thought on an otherwise cool paper.

    1. On 2018-06-23 20:26:42, user Maria Constantinou wrote:

      I just read this preprint and I think the findings that subicular bursts have a special role in spatial coding are very interesting. The idea that subicular bursting has distinct information encoding capacity also agrees with some of our own observations that bursting neurons can encode features of the local field potentials, although our experimental setup did not allow us to investigate spatial encoding. These are the links to our relevant work if you would like to have a look: <br /> https://doi.org/10.3389/fnc...<br /> http://dx.doi.org/10.1016/j...<br /> I think the results presented in this preprint are an important piece in the puzzle of spatial navigation, for which we know mostly about the encoding mechanisms of the entorhinal cortex and hippocampus and much less of the subiculum. Looking forward to see the final version.

    1. On 2017-03-16 11:57:37, user Eugene Katrukha wrote:

      Great work! It is a pity that Supplementary Movies and Figures are not available. <br /> There is typo, KIF560 is (+) plus end directed kinesin (KIF5(1-560)).<br /> In addition, your measurements of kinesin run length/speed is in good agreement with our data (1.32 um/s and 1 um) using QD+GFP-nanobody in live cell, check http://biorxiv.org/content/... (soon to be published)

    1. On 2016-08-19 17:14:35, user Robert Bruggner wrote:

      Very cool comparison guys! Nice to see this sort of rigor and systematic approach to this problem.

      A couple of thoughts that probably don't change your conclusions substantially:

      FWIW, the "Wards" linkage method as implemented in Rclusterpp runs much faster and produces better clustering results (than the average / euclidian combo) by my previous evaluations. I just clustered all events in the 2015 Levine Marrow 32 dataset on my 2013 Macbook (4 cores) in about 25 minutes.

      The "standard" hierarchical clustering methods that Rclusterpp implements are not tuned or designed specifically for flow cytometry data + the population identification problem and I believe many of the methods in your comparison are. In some sense, this sort of presents an "apples to oranges" comparison situation. At the very minimum though, it is a really nice demonstration of how much better domain-tuned algorithms perform relative to generalized clustering algorithms. In that respect, I think there are some useful adaptations of hierarchical clustering that make it better suited to flow cytometry work, but obviously I'm biased :)

    1. On 2016-08-09 14:48:31, user Jeremy Leipzig wrote:

      Interesting approach although mtDNA is not targeted by exome sequencing and variant callers are not thinking about haploid "chromosomes". Still, if the reads are there then they should not be returning that many FNs at such depths. Paper did not address the potential for NUMTs to be playing a role.

    1. On 2025-05-05 19:39:43, user ??? wrote:

      Manuscript lacks mechanistic explanation of how SSNA1 regulates centriolar architecture for ciliogenesis and a clear theoretical framework to contextualize its role in centriolar biology. Findings are disconnected, needing a cohesive model to unify SSNA1’s function in ciliogensis.

    1. On 2022-06-21 13:46:13, user Renzo Huber wrote:

      In the manuscript entitled: “Modelling the depth-dependent VASO and BOLD responses in human primary visual cortex”, the authors address one of the most important open research questions in the emerging field of human layer-fMRI. Namely, how neuroscientists should interpret functional MRI signals at very high spatial resolutions with respect to the underlying neuronal and vascular activation changes.

      This manuscript extends previously described models of the conventional BOLD fMRI contrast and augments it to incorporate the additional (partly orthogonal) information about blood volume changes. This advanced model makes it possible to provide a more comprehensive understanding of various compartments of the brain's vascular tree. The authors then uses a combination of self-acquired/self-analyzed cutting-edge layer-fMRI data, to investigate the model parameters and draw novel conclusions about both: (1) the plausible range of vascular features (e.g. CBVrest) and (2) the working principle and interpretability of common layer-fMRI acquisitions methods (GE-BOLD and VASO).

      Some of the most important take-home messages are:

      -> The modeling work confirms that GE-BOLD is contaminated by locally un-specific draining veins, while the VASO-method is mostly insensitive to those contaminations, as expected.

      -> Novel insights about the emerging VASO technique are: A) the VASO signal is partly coming from diving arterioles with reduced layer-specific localization specificity. B) the empirically measured CBV changes are somewhat plausible with a wide range of possible baseline CBV values. while preferring larger baseline values. Overall, I think it makes a lot of sense that the authors find the best correspondence of simulated and empirical data for larger baseline CBV values than previously assumed. These previously assumed values were based on ex-vivo data. And it is known that cadavers have less blood in the parenchyma (dead people are pale).

      -> This is the first comprehensive layer-fMRI VASO paper of the human primary visual system. While exploratory studies in previous publications have already implied the feasibility of layer-fMRI VASO in human V1 (Huber et al., 2021: Progress in Neurobiology), this manuscript is the first study to show its robust applicability across groups of participants. This has important implications for a large user base (readership of this journal). I am sure that many other layer-fMRI VASO users will soon jump on this brain too.

      I want to acknowledge that an earlier BioRxiv version of this manuscript was discussed in the Maastricht layer seminar. I want to acknowledge input of other seminar attendees for their insights in discussing this paper (particularly Faruk Gulban, Alessandra Pizzuti, and Sebastian Dresbach).

      I have reviewed as previous version of this manuscript as being part of a PhD Thesis containing a chapter (3) referring to this manuscript: <br /> https://espace.library.uq.e.... I want to thank my co-assessors for discussing this manuscript. <br /> My comments during the thesis viva are already included in this revised version of the manuskript (e.g. discussions about segmentation quality). <br /> Thus, I do not have any remaining major concerns about the manuscript.

      Though, I have two stylistic comments:

      -> In light of B1-inhomogeneities, potential inflow effects, BOLD contaminations and many other constraints, it is not trivial to set up a VASO sequence at 7T. Maybe it would be appropriate to cite the first VASO study at 7T (Hua et al. 2013, MRM, 10.1002/mrm.24334).

      -> When I had discussed figure 4 with my department head, he was suspicious whether or not a GM mask was applied to make the VASO results look like they are more specific to the GM. Maybe the authors can explicitly state in the figure caption if this was the case or not.

      I encourage the publication of the manuscript with great enthusiasm.

      Conflict of interest statement: <br /> I am in a loose collaboration with the second author Saskia Bollman: We share co-authorship as middle authors for the preprint by Faruk Gulban (https://www.biorxiv.org/con... "https://www.biorxiv.org/content/10.1101/2021.11.25.470023v1)").<br /> I have myself invested a bit of effort to make layer-fMRI VASO feasible in V1 with Eli Merriam in 2018 (https://layerfmri.com/ss-si... "https://layerfmri.com/ss-si-vaso-pitfalls-in-visual-cortex/)"). I believe that the sequence protocol (https://github.com/layerfMR... "https://github.com/layerfMRI/Sequence_Github/blob/master/Visual/S26_protocol.pdf)") and data (https://openneuro.org/datas... "https://openneuro.org/datasets/ds001547/versions/1.1.0)") that I developed, has inspired the authors of this paper too. However, my collaborator has not yet found the time to publish our study. Thus, I am pleased that the feasibility of layer-fMRI VASO is shown in this paper, instead. I do not have mixed feelings that the credit goes to Queensland now, this is well deserved.

      _______________<br /> as submitted to Journal

    1. On 2016-06-30 10:13:04, user Mikhail Gorbunov wrote:

      Don't you detect Chloroflexales? By my experience, Chloronema is common for oxygen/iron chemocline, along with Chlorochromatium consortia. As far as I remember, Chl.chlorochromatii clustered with Chl.ferroxidans. <br /> And there is one problem with all modern analogs of archeal ocean: anoxygenic phototrophs always coexist in modern ferrotrophic environments with oxygenic ones, including eukaryotic algae, as well as with eukaryotic predators. But there were no eukaryotes in archean ocean.

    1. On 2020-12-02 09:56:01, user Martin R. Smith wrote:

      This looks like a very promising new method. In evaluating its performance, I wonder whether you considered using alternatives to the Robinson–Foulds distance, e.g. Smith 2020, https://doi.org/10.1093/bio... ? As the RF distance suffers from a number of potential biases, it would be interesting to see whether a more robust tree distance measure would make the case for wQFM even stronger, and whether the seemingly better performance of ASTRAL on the avian dataset is robust to the choice of tree distance method.

    1. On 2018-01-03 16:17:55, user Anaïs Lacoursière-Roussel wrote:

      Well done! Very important results for an ecological important species. Some comments: PCR conditions may largely affect specificity and qPCR is much more sensitive than PCR. Did you test your primers-probe using qPCR or PCR in vitro ? 'Presence' is based from your standard curve, so more information is needed about it. L134 what do you mean by 'technical replicates' (extraction, filtration?) ? I do not understand L150-152. 10% of the qPCR amplification should be sequenced.

    1. On 2020-10-29 00:59:12, user John Bowman wrote:

      The paper tries to make an important connection - bacterial numbers versus read numbers/proportions in a Illumina MiSeq dataset - commendable since microbiome data is often fustrating and overly descriptive due to the lack of connection to the reality of bacterial numbers and makes dataset comparisons objectively difficult. For comparison we did something similar to the paper here (see Kaur et al. 2017 https://pubmed.ncbi.nlm.nih... "https://pubmed.ncbi.nlm.nih.gov/28800828/)") except in the form of bacterial communities growing on vacuum packaged red (lamb) meat. In this case we had total viable counts and also LAB counts collected over time that fitted growth models and we were confdent that the total population was fully estimated (VP lamb at -1 C is a rather constrained scenario as well).

      The LAB counts versus TVC counts were used for in silico sequenced based population estimates since we knew and had confirmed that LABs dominated the meat community (mainly Carnobacterium and Lactococcus) and so we could then use that as a guide to estimate other taxon abundances, such as Clostridium species. We only did this at the genus level since the data was more robust. Using the numbers (log TVC, log LAB, proportion of LAB reads) we were able to estimate populations in situ to a log scale over time that could be fitted to a logistic model to estimate growth rates and maximum population densities. Further estimates using qPCR could be useful but I doubt they would show anything wildly different. This approach was useful for the dominant taxa by the time you get to proportions of 1:1000 (which for VP lamb was around 4 log10 CFU/cm2) the noise is fairly high and you get situations were samples lack reads due to the sampling limits of the MiSeq process.

      Good luck with your research,

      Regards,

      John Bowman (Prof.), University of Tasmania, Tasmanian Inst of Agriculture

    1. On 2020-12-08 06:04:22, user debernardis wrote:

      I would like to have greater detail on the preparation of the CS extract for the in-vitro experiment. Was it obtained in the lab, and which was the technique? Or was it a commercial tobacco condensate extract?<br /> Thanks.

    1. On 2019-08-05 08:38:30, user Leonardo Araujo wrote:

      Hi, congratulations for the nice study! I went through the supplementary files and it looks like the gene NPC2 performed better than BATF2 in cohorts composed of adults. I think you should include the NPC2 in the downstream analysis and also compare its correlation with BATF2 (maybe a combination of these 2 genes might enhance the detection of incipient TB).

      cheers

    1. On 2017-02-22 14:25:04, user saurabh mahajan wrote:

      1. Considering,<br /> dO/dt = f(O,E) --- Eq 1<br /> dE/dt = g(O,E) --- Eq 2

      Is it correct to say that Eq 1 (natural selection+) is fundamental, but Eq 2 (niche construction etc.) is just instantiation? If the (long term) dynamics of the system is explained only by considering both Eq 1 and 2, why is Eq 1 more fundamental?

      1. Causality perhaps has many definitions. In the murder analogy, answer to which question has explanatory (or predictive) power?<br /> a. What killed the man? (the bullet, a knife, a baseball bat?)<br /> b. Why was the trigger pulled? (anger, cheating, pathology)<br /> One could claim that each has explanatory power depending on the circumstances. Or may be they explain different aspects of reality, or reality on different time-scales?

      2. Should NC be invoked/applied more frequently?

    1. On 2020-03-28 20:13:13, user Sinai Immunol Review Project wrote:

      Title: <br /> SARS-CoV-2 and SARS-CoV Spike-RBD Structure and Receptor Binding Comparison and Potential Implications on Neutralizing Antibody and Vaccine Development<br /> The main finding of the article: <br /> This study compared the structure of SARS-CoV and SARS-CoV-2 Spike (S) protein receptor binding domain (RBD) and interactions with ACE2 using computational modeling, and interrogated cross-reactivity and cross-neutralization of SARS-CoV-2 by antibodies against SARS-CoV. While SARS-CoV and SARS-CoV-2 have over 70 % sequence homology and share the same human receptor ACE2, the receptor binding motif (RBM) is only 50% homologous.<br /> Computational prediction of the SARS-CoV-2 and ACE2 interactions based on the previous crystal structure data of SARS-CoV, and measurement of binding affinities against human ACE2 using recombinant SARS-CoV and SARS-CoV-2 S1 peptides, demonstrated similar binding of the two S1 peptides to ACE2, explaining the similar transmissibility of SARS-CoV and SARS-CoV-2 and consistent with previous data (Wall et al Cell 2020).<br /> The neutralization activity of SARS-CoV-specific rabbit polyclonal antibodies were about two-order of magnitude less efficient to neutralize SARS-CoV-2 than SARS-CoV, and four potently neutralizing monoclonal antibodies against SARS-CoV had poor binding and neutralizing activity against SARS-CoV-2. In contrast, 3 poor SARS-CoV-binding monoclonal antibodies show some efficiency to bind and neutralize SARS-CoV-2. The results suggest that that antibodies to more conserved regions outside the RBM motif might possess better cross-protective neutralizing activities between two strains.<br /> Critical analysis of the study: <br /> It would have been helpful to show the epitopes recognized by the monoclonal antibodies tested on both SARS-CoV, SARS-CoV-2 to be able to make predictions for induction of broadly neutralizing antibodies. The data on monoclonal antibody competition with ACE2 for binding to SARS-CoV RBD should have also included binding on SARS-CoV2, especially for the three monoclonal antibodies that showed neutralization activity for SARS-CoV2. Because of the less homology in RBM sequences between viruses, it still may be possible that these antibodies would recognize the ACE2 RBD in SARS-CoV-2.<br /> The importance and implications for the current epidemics:<br /> It is noteworthy that immunization to mice and rabbit with SARS-CoV S1 or RBD protein could induce monoclonal antibodies to cross-bind and cross-neutralize SARS-CoV-2 even if they are not ACE2-blocking. If these types of antibodies could be found in human survivors or in the asymptomatic populations as well, it might suggest that exposure to previous Coronavirus strains could have induced cross-neutralizing antibodies and resulted in the protection from severe symptoms in some cases of SARS-CoV2.

    1. On 2018-01-31 21:47:31, user davidbryantlowry wrote:

      We have heavily revised the previous version of this preprint. Errors detected by reviewers have been corrected. The new version is much longer and thus, includes a much richer description of the study and its overall meaning.

    1. On 2021-01-19 19:53:09, user Vatsan Raman wrote:

      We thank the reviewer for their thoughtful evaluation, commentary, and suggestions provided. The final published version in PNAS fully addressed all their comments.

      A detailed point-by-point response was submitted to the journal.

      We substantially revised the manuscript and added eight new supplementary figures to address concerns and clarify key points.

      These salient changes are summarized below:

      1. We extensively employing statistical tests to validate our conclusions on conservation of allosteric hotspots, relationship between centrality score and location of allosteric hotspots, and ranking of dead variant based on rescuability.
      2. We have provided detailed clarification of differences between the disrupt-and-restore experiment (Fig. 1) and rescuability experiment (Fig. 2), and harmonized the data representation in both figures
      3. We demonstrate that our conclusions on regions of importance for allosteric signaling is robust to changes in the quantitative thresholds defining a hotspot and classifying a residue as a dead variant.
      4. We validate the molecular dynamics simulations by demonstrating agreement in small-angle X-ray scattering profiles from MD ensembles with experimental data.
    1. On 2019-05-15 21:09:37, user Adam Taranto wrote:

      This paper has got me thinking about what it means for a MITE to be "expressed" and if that is the same thing as not being suppressed/controlled.

      Unlike retrotransposons, TIR family DNA-transposons (and their non-autonomous derivatives - MITEs) do not have a transpositional RNA intermediate. Though active transposition of MITEs does require the expression of a cognate TPase from an intact parent element elsewhere in the genome, it does not follow that all RNA-seq reads mapping to MITEs are derived from such elements.

      I think there are plausible scenarios in which MITE sequences are transcribed but not themselves active.

      1) Transcripts mapping to MITEs are derived from TPase-transcripts in parent elements.

      Most TIR-family elements have internal Pol-II promoters for expression of their TPases. Transcripts from autonomous elements should map at least partially to an internal segment of a related MITE.

      This option and probably be ruled out as no autonomous forms of MITE-Undine were found in Zt. Further, it looks like "TEtranscripts" requires a TE to be fully contained within a transcript to be counted. In this case parent-element derived transcripts might be excluded anyway.

      2) MITEs are present in TE-rich regions and may be captured in retrotransposon transcripts.

      You report that MITE-Undine is present in gene-poor regions of the Zt genome. This is usually a good proxy for TE-richness in ascomycete genomes. The paper also mentions that LTR-retrotransposons are among the most abundant elements in Zt. LTRs contain intrinsic regulatory elements (i.e. PolII promoters) which drive their own expression and can become novel promoters for nearby genes / ncRNAs.

      If these MITEs are nested within or adjacent to the more abundant LTR-elements they might just be present in LTR-derived transcripts.

      3) MITEs may be over-represented in the UTRs of stress-induced genes.

      MITEs have a preference for inserting within open chromatin. MITEs require the expression of cognate TPases for transposition and TPases from autonomous TIR-element counterparts are often de-repressed under stress conditions. It would follow that MITEs may disproportionately find themselves inserted in the promoters of genes that are incidentally also highly expressed under stress conditions (or other chromatin that is accessible at that time).

      In this case, MITEs may appear to be "expressed" as they are transcribed as part of the UTR of stress-induced genes. This is likely the case for mimps in Fusarium spp. where they are common in the 5' UTRs of early effectors BUT have no observed effect on expression themselves.

      This might be less likely specifically for MITE-Undine as it seems to be highly "expressed" under all conditions and generally far from neighbouring genes.

      4) MITE-Undine elements may retain cis-regulatory functions.

      This would be pretty cool. Do you see transcripts initiating within these MITEs rather than just spanning the full MITE? Could this explain why MITE-Undine is highly expressed in Figure S5A-D?

      It would be nice to see a MITE-Undine reference sequence included in the manuscript.

    1. On 2016-06-07 15:57:30, user Tim Fessenden wrote:

      Brilliant concept! It does require that cells can make filopodia, and might have variable results with cells who make shorter/unstable/fewer filopodia. Also I didn't see what the dynamic range estimate was for detection of interactions, and how that compares with other PPI techniques?

    1. On 2017-07-30 18:29:59, user Cahir O'Kane wrote:

      Hi, this is a nice analysis, but as a non-expert in the field of mammalian axons, I'd find it really helpful if you could be more explicit in your abstract and in your paper on the stage of the axon life/developmental cycle that you're working with! Growing axons are more biosynthetically active than mature axons, e.g. exemplified by the growth cone, but there may be other differences too. In our experience markers of the protein secretory pathway (reflecting biosynthesis of secretory proteins) are only found at low levels in mature (Drosophila) axons. This is nothing personal, since I really find it hard to interpret many papers that use mammalian primary cultured neurons, with question of the growing/mature context in mind. For example, mentioning in the abstract that the system you're using comprises primary neuronal cultures would be helpful, and in the body of the paper giving any indication of the growth state of the axons you're analysing (as far as you can tell this) would be a help. Sorry to intrude - I hope that my input is of some help for subsequent versions of the manuscript!

    1. On 2022-05-20 12:14:20, user Andy Jones wrote:

      Hi Yosuke, thanks for your nice words. Doing a dimensionality reduction step on the response matrix Y before performing alignment is a great idea. We haven't tried that yet, but I suspect that alignment would work well in this case (as long as you use enough PCs). The only downside is that the second-layer GP would no longer represent a function capturing the original phenotype (e.g. gene expression) but rather a low-dimensional representation of the phenotype. So in order to model the phenotype with the aligned coordinates you would have to plug the original Y matrix back into a model with the aligned coordinates (but this wouldn't be too hard). Great suggestion, and I look forward to trying it!

    1. On 2020-12-17 17:30:30, user Sui Huang wrote:

      I noticed that the controls are just saline buffer, and not some empty lipid nanoparticle, which would have been a more stringent control (even better: LNP carrying an unrelated, or non-coding mRNA). It may be that the LNP alone exerts some non-specific adjuvant effect tat would have protected recipients if infected with the real virus? (A similar mechanism as postulated for BCG). Also in the human trial, the placebo is just saline solution. This also prevents us from knowing if the LNP has some biological (beneficial or adverse) effect... unless this has been shown before separately?

    1. On 2014-08-24 12:47:21, user Douda Bensasson wrote:

      Thank you for a very interesting and carefully controlled study!

      One thought I had when reading it, is that you could compare the observed number of polymorphic numts to the number that we predict under neutrality in Bensasson, Feldman and Petrov 2003, J. Mol Evol (http://tinyurl.com/n4y48t5) "http://tinyurl.com/n4y48t5)"). In this paper, we used the ages of fixed numts in the human genome to estimate the number of polymorphic numts under neutrality. Using our estimate of pi[numt] = 2.07, we would predict that in a sample of 989 individuals you would see only 15 polymorphic numts. Why do you see almost 10 times more? Maybe most of the low frequency numts you see are slightly deleterious? Or maybe the estimate of nucleotide diversity (pi[pointsubs]) that we used does not reflect your sample well and so does not control for demography? If you could estimate nucleotide diversity (pi[pointsubs]) for your sample you could make a prediction about how many polymorphic numts you expect under neutrality and so estimate what proportion are slightly deleterious. We would also expect that the number of high frequency numts (e.g. freq>0.1) would be close to the neutral prediction. If most of the rare numts you have seen are not neutral then this would have implications for the study of human disease.

    1. On 2025-09-02 17:16:59, user Marouen Ben Guebila wrote:

      Hello,

      I found your preprint very cool, so I wrote a review below with help from Dr. Jillian Shaw!

      Best,<br /> Marouen Ben Guebila

      This preprint by Liu et al. provides a timely and needed analysis of the effects of transcription factor (TF) dose response on chromatin accessibility and gene expression using a novel automated ATAC-seq platform. Methods for estimating TF dosage effects are limited and RoboATAC, in combination with ChromBPNet can be a powerful combination to do large-scale experiments and applications in various disease conditions. <br /> I have reviewed the main text and figures but not the supplementary material

      Main comments:<br /> The use of HEK293T as a cell model seems adequate to calibrate the method and derive cell-specific regulatory programs and their relation to TF dosage. Shortcomings related to lack of Histone-Chip data and the lack of expression of certain co-activators were adequately addressed by authors.

      L162: “Given that the majority of the selected TFs primarily function as transcriptional activators,”<br /> -> This analysis would benefit from a discussion on why most TFs have activator/repressor activity for each gene (Figure 1H).

      “To investigate the predictive power of DNA sequence alone, we trained ChromBPNet models for each condition after merging replicates.”<br /> -> How were replicates merged (intersection, union, average)?

      In Figure 2e - Multinomial regression . Why did this analysis exclude the 4th group of regions “sensitive non-saturating” ?

      “The inclusion of chromatin state features did not enhance performance for saturating sensitive peaks and closed nonsensitive peaks, and only marginally improved performance for open nonsensitive peaks. This slight enhancement of predictive power may suggest more complex regulatory mechanisms are at play in open nonsensitive peaks”<br /> -> In this logistic regression analysis, features were considered independently. However, it might be beneficial to model interactions between sequence and chromatin states, to improve prediction and also have more accurate estimates of feature importance. This can be done manually because the number of interactions is small, or automatically by using Random Forests, which model interactions efficiently.

      With regards to the multinomial regression analysis, it is not clear whether each class was modeled independently or whether multivariate regression was conducted. In the latter case, it might be worth modeling the covariance in the error term to improve prediction.

      Minor comments:L268 specific ChromBPNet model. (Fig. 3G). <br /> -> Typo: There is an extra period after “model”.

      “Our data suggests that the conditions necessary for cooperative IRF4 binding to 3 bp-spaced ISRE”<br /> -> This statement is not clear from figure 4-E, 2 bp and 3 bp spacing seem similar at high dose ranges for IRF4 head to tail configuration.

      “As previously shown (Fig. 3), SOX2 begins interacting”<br /> –> This result is shown in Figure-3D and E.

      In Figure 6, would it be possible to create a figure 6B-like (motif by dose) for SPI1 and ELF1?

    1. On 2021-05-22 12:48:46, user Prof. T. K. Wood wrote:

      1. Fig. 4 shows indole-treated cells are not persisters (cells dying rapidly) so there are little data showing difference in energy states in dormant bacteria.
      2. What solvent was used for indole? Note the extraordinary high conc (10 mM) used. No solvent controls shown.
      3. Indole is not a "putative" signal. Refs missing for indole as a intra-species (Rather's group), inter-species (Wood group), and interkingdom signal (Wood group).
      4. Cm to cease protein protein and make persisters is same as Tet pretreatment already published but not cited (see doi doi:10.1128/AAC.02135-12, 2013).
    1. On 2021-09-06 16:53:52, user Cedric Berney wrote:

      Great to see these new data on sanchytrids!

      I was wondering if you did consider the possibility that sanchytrids are actually branching inside Blastocladiomycota.<br /> There is no transcriptomic/phylogenomic data available yet for any member of the shorter-branched Physodermatales.<br /> Therefore there is a possibility that they would turn out to be basal to Blastocladiales + sanchytrids, making it premature to create a new phylum for sanchytrids.

      Also there is very strong support for Blastocladiales + sanchytrids in the tree (the internal branch is actually longer than that at the base of Chytridiomycota, Zoopagomycota and Mucroromycota).<br /> So to be phylogenetically consistent across Fungi, one could argue that either the latter three should become multiple phyla, or Blastocladiales + sanchytrids should be in a single phylum, irrespective of the latter's unique traits.

      In any case, whether sanchytrids deserve to be a separate phylum or not, the very strong support for their relationship to Blastocladiomycota means that this B+S clade is evolutionarily relevant and would arguably deserve a name, like Dikarya for Ascomycota + Basidiomycota + Entorrhizomycota.<br /> Any suggestion for that name?

      Best wishes

    1. On 2020-05-09 18:59:13, user Ben wrote:

      Exciting work! Some questions:<br /> 1. Any way to download the dataset, especially the fluorescence scores (i.e., regression labels, not just for classification)?<br /> 2. Any way to access the supplementary methods?<br /> 3. What reference was used for integrated gradients analysis?<br /> 4. What model architectures and hyperparameters were tried?

    1. On 2025-10-18 14:27:48, user Evolutionary Health Group wrote:

      We at the Evolutionary Health Group ( https://evoheal.github.io/) "https://evoheal.github.io/)") really enjoyed this paper.

      Here are our highlights:

      The authors combine small DNA motif signatures with larger pan-genome features to predict antibiotic resistance, outperforming models that use only target motifs or only genome-wide features.

      This dual model demonstrates improved generalization across multiple bacterial species.

      The approach also evaluates the relative predictive value of individual motifs.

    1. On 2023-05-28 22:02:06, user Andrew J. Crawford wrote:

      Sample quality is a key challenge in all genomics project, so I really appreciate this preprint Most of biodiversity is not conveniently located next to an ultracold freezer, of course. Many thanks for sharing! Just wanted to point out that the EBP paper cited at the end of paragraph 1 is not shooting for reference genomes for all eukaryotes by 2025 but by the end of 2030, since 2021 is referred to as the "end of the first full year of the project", and Lewin &l (2022) propose a 10-y timeframe." [The EPB paper also proposes a Phase I achieving "An annotated reference genome for one representative of each taxonomic family of eukaryotes (~9,400 species) in 3 y".]

    1. On 2018-06-07 02:02:37, user Devang Mehta wrote:

      It is bad practice to upload preprints without a methods section. The authors really should upload a revision with a detailed Methods section and links to supporting datasets like other users of BioRxiv do.

    1. On 2017-03-25 21:24:16, user Connor Skennerton wrote:

      I'm very interested in switching over to using SVs from de novo OTUs. One of the things that isn't immediately clear to me is how to leverage the sequence stability for quicker analysis. I could imagine a situation where I want to store SVs centrally along with metadata like taxonomy so that when additional samples arrive I don't need to rerun blast/RDP etc. on many of the sequences. My initial thought was to create a MySQL/Postgres database that can be continually updated but I'd like to hear any opinions as to whether this is overkill or if there are better solutions. Are there tools/setups that people have already implemented to achieve this?

    1. On 2017-03-20 16:53:09, user Ira Blader wrote:

      Thank you for stimulating the much-needed discussion on the role that preprints may have in publishing in microbiology and likely other biological fields. As you and others have noted, scientific publishing is at a breaking point due to a variety of factors, and there is excitement (that I share) of the potential that reprint servers have in effecting important changes in this process. Three of these factors are the peer-review process, paywalls, and a paper’s fit with a journal’s perceived impact. Pre-prints have been proposed to help with the key goal of disseminating scientific knowledge as quickly as possible while also offering the ability to obtain reader feedback. Dr. Schloss’ Perspective does an outstanding job of discussing how pre-print servers do this. However, I have several questions and concerns about preprints:

      1. The premise that a paper can be improved by reader comments is certainly valid. In my own anecdotal experience as an editor at the ASM journal mSphere, the first, and so far only, paper that I handled that had been posted on bioXriv and had gone through comments and revisions was perhaps the paper that was the best received by my selected peer reviewers. However, I am concerned that as we become more invested in preprint servers that reader weariness and complacency will become an issue. Time is one of our most cherished resources and the continued posting of work that requires colleagues’ feedback will necessitate readers to continuously check for updates on each paper in their field. I understand that journal peer review isn’t perfect, but at the end of the process it results largely in the same manuscript as would have been developed through bioRxiv or other preprint servers.

      2. A key advantage to preprint servers has been proposed to be the near immediate dissemination of scientific knowledge without paywall restrictions. While this is true, the danger with this is that inherently incorrect information/data/conclusions can be posted and in many cases the initial version is the one that is remembered and often is difficult to reconcile. The autism-vaccine link paper is probably the best example of this. While that paper had gone through established peer review at a highly regarded journal, it did so at a time when fewer avenues of disseminating scientific information were available. The ever-increasing use of social media coupled with today’s political environment can lead to devastating consequences, and I am not aware of any mechanism in place in which a paper can be taken off of bioRxiv for scientific inaccuracies. Over the past decade, publishers have learned that that have an obligation and vested interest in ensuring that their journals publish reputable data as well as in notifying the public and removing papers whose scientific basis becomes suspect.

      3. The ability for the community to identify data manipulation and scientific misconduct in a preprint is important, and I agree is a major advantage of preprint servers. However, important issues need to be resolved. First, accuser anonymity is an important protection when a suspected fraud concern is raised, and publishers act as a firewall to maintain this. Second, it is unclear how whistleblower protection laws will apply to raising concerns of papers posted online. Third, a scan of the Retraction Watch website reveals that many instances of scientific misconduct are caught long after a paper is published, and it is unclear whether bioRxiv can improve this situation.

      4. One of the key complaints that many scientists have with peer review is that journals make acceptance decisions based how a paper’s perceived impact and significance fits with a journal’s stated standard. Often these decisions are made regardless of the paper’s scientific soundness and sometimes are rendered only after a number of rounds of peer review. The need to publish in high impact journals is well documented and preprint servers will likely not change this unless publishing models change or how the scientific community weighs the importance of where a paper is published. As Dr. Schloss notes here, journals using preprint servers as clearing houses to identify papers that they’d like to handle may aid in alleviating this choke point in publishing.

      In summary, I appreciate Dr. Schloss’ perspective article and how it will hopefully trigger continued discussion on how preprint servers can improve scientific publishing. While I am a current skeptic of them, I am optimistic that change is coming for the better and perhaps as they evolve preprint servers will play an important role. I will be glad to be converted from my skepticism.

    1. On 2020-09-09 19:39:44, user Max wrote:

      This is fascinating, and a landmark technical achievement: congratulations! Having worked on the 8p23 inversion for many years (https://www.ncbi.nlm.nih.go... ) , we were wondering what CHM13's inversion status is? Additionally, given the remarkable diversity reported for DEFB loci, to what extent would alternative haplotypes concur with this assembly (e.g. those from ancestrally diverse populations), and would the inversion breakpoints be conserved/preserved across these haplotypes?

    1. On 2021-01-29 09:20:05, user Isabelle Dusfour wrote:

      Erratum in the Table 1 legend : Percentages of knocked-down mosquitoes at 30 minutes (30%KD) and the standard deviation (STD) amongst replicates in CDC-bottle test for Anopheles darlingi populations collected in Blondin (BL) and La Césarée (LC). Test results are break down into the insecticidal molecule, year and week (Wk). In addition, the method of collections (CM) i.e. human landing catch (HLC) and mosquito magnet trap (MM), the number of mosquitoes tested (N) and replicates are mentioned (n). Dark grey: resistant populations with 30%KD < 90%; light grey: 90%<30%KD< 98% possible resistance; white: susceptible 30%KD>98%.

    1. On 2024-10-19 18:05:46, user CDSL wrote:

      This article is a good demonstration of the potential of portable DNA sequencing technology for rapid detection of pathogens and antimicrobial resistance in the field, especially for public health emergencies in low-resource or remote areas, and the results section, in particular, is very detailed. However, I feel that there are some deficiencies in the discussion part. It is mentioned in both the introduction and the results that the differences are evaluated from five aspects, but I do not seem to see obvious discussion about DNA yield and purity in the discussion part. Also, have you considered separating the restrictions into a separate section? That may help the reader to read in a more organized way.

    1. On 2019-06-20 06:33:04, user Jean-Claude Dujardin wrote:

      Development and validation of a genome capture method to sequence #Leishmania directly in host tissues. Sensitive, excellent performances for calling of SNPs, ploidy, CNVs.....but parasite genomes very different from those of derived cultured isolates

    1. On 2025-10-09 18:57:38, user Donovan Parks wrote:

      Hello. I read your preprint with much interest. I have recently been looking at Zinderia insecticola and Stammera capleta genomes at NCBI. Genomes from these species also appear to lack tRNA-Trp(tca) and only contain tRNA-Trp(cca). I am wondering if you have looked at these genomes? Do they also have a tRNA-Trp(cca) with a 4-bp anticodon stem? This would strengthen your finding that this modified tRNA-Trp(cca) can recognize UGA.

  2. jnl-biorxiv.drupal-stage-jnl-web01.highwire.org jnl-biorxiv.drupal-stage-jnl-web01.highwire.org
    1. On 2015-06-19 19:13:01, user Sergey wrote:

      There is a mistake in equation 9 which is missing a sum. Figure 2 was generated using the correct form of the equation and does not require correction. I've posted the corrected equation as the figure in the comment.

    1. On 2018-02-13 11:58:23, user jvkohl wrote:

      Thanks for "...reiterating the importance of CG methylation changes in msh1-derived enhanced vigor."

      Do you think the link from Schroedinger's claims about the anti-entropic effects of sunlight in "What is Life?" (1944) is more important now than it was then.

    1. On 2017-11-16 06:50:14, user Gal Haimovich wrote:

      I liked the paper - the method seems simple yet robust and the results are interesting. However, I believe that the paper will benefit from doing FISH (combined with organelle marker) for a few RNAs to confirm the results.<br /> I also think that to get more biological insight, you can look at ER RNAs with differnt translation inhibitors (thus detecting translation-independent ER targeting of RNA) or ER stress.<br /> Last point - did you detect nascent unspliced (or partiall spliced) mRNAs in the nuclear fraction? This method could be a nice approach to study differnetial splicing - which nuclear factors affect the splicing of each transcript.

    1. On 2025-06-26 02:10:56, user CJ San Felipe wrote:

      Summary<br /> Ligand binding is driven by the combination of enthalpic and entropic thermodynamic terms, however, how evolution traverses the energy landscape to produce different specificities for ligands is not fully understood. In this work, the authors used an ancestral reconstruction of the LGF transcription factor family to identify the possible identities of the major branching transcription factors to study how enthalpic and entropic ligand binding modes may have evolved over time. They show using both DSF and ITC how the thermal stability of ancestral reconstructed TF’s is lost while the thermodynamic binding components gradually switch for different carbon substrates from an entropic to enthalpic binding mode. The authors follow up their thermodynamic experiments with structural studies of the crystallized ancestral TF’s with their respective substrates bound to provide a structural basis for their thermodynamic observations. Their structural analysis suggests two major sources for the thermodynamic binding modes: first, the substrate binding site evolved away from predominantly bulky hydrophobic residues in the most distant ancestor to smaller polar residues which resulted in a change in ligand binding towards forming specific hydrogen bonds both with the TF directly but also through an extensive water network (enthalpic component). Second, the authors compared the most distantly related TF’s to illustrate the evolution of greater protein stability as illustrated by the greater order exhibited by Anc4, particularly in a loop region that is distal to the binding site. Further, they also show that ligand binding to Anc1 does not induce a greater degree of order compared to the apo protein which they propose represents a redistribution of entropy away from the ligand binding site.

      Major points<br /> Point 1. The authors propose that Anc1 has a spatial redistribution of entropy away from the ligand binding site to the distal loops to compensate for the loss of conformational entropy upon binding. Can they test this hypothesis by truncating or stabilizing (by point mutation) the loops? Despite a cooler earth at present, there are still organisms that live at hot temperatures. Do the extent orthologues in these organisms show entropically driven binding? Do the ancestors reported in this function as transcription factors at higher temperatures? Can the authors propose an experiment to test this? It’s interesting that Anc1 is the most thermally stable of the TF’s (based on the hypothesized relationship between earth temperature and protein thermal stability) yet the structure suggests it’s the most disordered compared to Anc4. Can the authors comment on how this fits within their proposed model?

      Point 2. The possibility that ancestral reconstruction artificially stabilizes proteins has been acknowledged in the literature (e.g. PMID 27413048). Are the authors concerned that the changes in stability observed in their work might be due to the stabilizing effect of consensus mutations?

      Point 3. The authors focus on the LBD of the LGF family for structural studies and point out that Anc1 (the most distant ancestor) exhibits a greater level of disorder compared to the most recent ancestor Anc4. Is this level of disorder also expected to occur in the DNA binding domain or is it disorder unique to the LBD? In other words, does evolution only act on one domain of this family or are there correlated changes to the DBD as well (allosteric mechanism)?

      Point 4. It’s interesting that D-fucose binding was largely lost by Anc2 (or not tested?), can the authors provide a structural reason for that similar to their analysis with Anc4? Further, with respect to Figure 4 can authors show (perhaps just an AlphaFold prediction) what the composition of the substrate binding site looks like between each ancestor? Was there a sudden change between Anc1 and Anc2 in composition or was it more gradual (also given the D-fucose binding is almost lost between Anc1 and Anc2 - again was that actually tested)?

      Point 5. “It should be noted that he apo and D-fucose-bound ?Anc1 structures were obtain from crystals from same crystal screening drop i.e., the observed differences are not due to differences in crystallization conditions”. Was this a co-crystallization experiment where two crystals were looped from a single drop - one crystal led to a structure with fucose bound and the other was apo? Crystals with different symmetry (and different crystal packing) can grow in the same drop from identical conditions. The listed space groups in Supplementary Table 2 indicated that the space group was different for the apo and fucose-bound Anc1. Is there concern that the conformational change observed between holo and apo-protein is influenced by the differences in crystal packing? The cell dimensions are similar, can the authors check that the data indexing is consistent?

      Point 6. The authors point out that LacI is a functional homodimer in Figure 1 but do not distinguish whether they are investigating the homodimer or monomeric form in subsequent experiments. It would be helpful to clarify which oligomeric state they are investigating in their experiments (DSF, ITC, etc.). See minor point 3.

      Point 7. D-fucose is smaller and more hydrophobic than BMDG/lactose. It follows that a protein’s binding pocket that is smaller and more hydrophobic (e.g. better packed) will favor D-fucose binding. Given that core packing is a well-established mechanism of protein stabilization (e.g. PMID 27425410), how do the authors think about whether this reflects well established principles in molecular recognition and protein stability vs novel mechanistic insight specific to sugar recognition evolution? <br /> Minor points<br /> Point 1. Check the Figure 4 legend matches the subpanel letters. E.g. panel “a” shows BMDG not D-fucose.

      Point 2. IPTG is a synthetic analogue of allolactose and is unlikely to be encountered by evolution in the context of this work. Was this included because it was in the initial carbon source panel?

      Point 3. Supplementary Figure 6. Only Anc3 and Anc4 appear to have a well defined transition in the CD melt curves. Are the fits to a sigmoidal curve meaningful for the other curves? How were the uncertainties calculated for these fits? Perhaps quote confidence intervals instead of SEM?

      Point 4. “D-fucose retains degrees of freedom in the Anc1 binding pocket, contrary to the idea that ligands lose their conformational entropy on binding”

      How was “degrees of freedom” assessed in this case? Were multiple conformations observed in the electron density maps?

      Point 5. Ensemble refinement (PMID 23251785) was used to assess protein disorder, however, it is not mentioned in the results text. The Rfree values for the input models to Supplementary Table 5 to help comparison. The Rfree values were up to 5% worse for the ensembles compared to refinement of a single structure (e.g. 21.21 vs 26.21 for the Anc1 glycerol structure). This suggests that the ensemble is worse than a single model. The authors should justify the inclusion of these results.

      Point 6. The lac operon regulates genes associated with the metabolism of lactose. What did the fuc operon regulate? (Perhaps the genes are hinted at in gray text in Figure 1b?)

      Point 7. “These findings are suggestive of an evolutionary transition from binding of lactose/BMDG to D-fucose.” The reverse, right? D-fucose in ancestor, Lactose in extant?

      Point 8. Figure 2d could be improved by adding the results from all sugars tested with each ancestor.

      Reviewed by CJ San Felipe, Galen J. Correy & James S. Fraser

    1. On 2017-10-28 16:50:38, user Lionel Christiaen wrote:

      Student #2<br /> Enhancer elements regulate gene expression independent of their position and orientation. Located in introns or up or downstream of the core promoter, enhancers regulate transcription by recruiting transcription activators and repressors. Given some enhancers can interact with core promoters over long-distances, spanning 10- 1000 kb. Hongtao Chen and his team study these long-distance interactions. Studies using chromatin conformation capture(3C) were used to show the physical interaction between distant enhancers and promoters. The static nature of 3C limits what kinds of questions can be answered about promoter- enhancer interactions. Chen and his team develop a clever assay to study the dynamics of promoter- enhancer interaction and transcription. By inserting an eve promoter and lacZ 142 kb upstream of the endogenous eve locus, they can discover transcription requires the enhancer is near the promoter, and that transcription ceases once they disassociate. <br /> The construct enables for the visualization of eve and lacZ mRNA levels as well as enhancer-promoter distance over time. They substitute lambda DNA in place of homie driving lacZ, showing homie dimerization is what causes the looping. Furthermore, while stable loops form when homie orientation is switched, transcription dropped significantly. This finding brings up a question the team does not explore. How is the promoter interacting with its enhancer? They show transcriptional activation begins at 350nm distance between the promoter and enhancer. While they speculate this distance maybe due to the proteins that bridge enhancer and promoter. In addition to the distance between enhancer and promoter, imaging the physical interaction between the elements would better inform the nature of the enhancer promoter interaction. Overall, it was compelling work, with technical advancements that will help to better understand endogenous enhancer promoter dynamics.

    1. On 2021-02-25 04:29:39, user Paul Wolf wrote:

      I thought the E484K mutation was the signature of the variants from South Africa and Brazil, and am concerned if it's arisen independently in New York. Remember NY was hit hard by the coronavirus early on. The variants with E484K seem to appear later, after a lot of people have acquired immunity to the original (wild) strain. Bloom Labs just published more research today, testing antibodies against the different variants, including Brazilian and South African,(and Californian, although that's because of a different mutation), which all escape the same antibodies.

    1. On 2023-12-07 07:13:44, user Walter Karlen wrote:

      Hi, thank you for haring this nice work. I have a question regarding your method to calculate the PSD. I am unable to fully follow why the derivative of the EEG time series would produce a PSD equivalent. I followed the Cox et al 2017 citation. Which uses the temporal derivative of the Laplacian (which you dont use here?) and refers then further to another groups work (Sleigh et al 2001) that suggested this approach for measuring depth of anesthesia. Their figure 1 clearly show that the spectral power has clearly different order of magnitude. Furthermore, wouldn't a different sampling frequency fs (i.e. doubling) immediately lead to a complete different scaling of the power graph? PSD is calculated by the square of FFT divided by fs/#bins

    1. On 2024-05-30 05:42:05, user cong wrote:

      We are trying to install Nanomotif in our server. We tried all of the install methods, and the major install looks good. However, when we tried nanomotif MTase-linker install, the following error was shown. It seems that module 'snakemake' had some issues. We then checked the 'snakemake' install and found we had snakemake==8.12.0. Is there any method to solve the problem for MTase-linker install?

      Thank you very much!


      $ nanomotif MTase-linker install<br /> /home/miniconda3/envs/nanomotif/lib/python3.12/site-packages/nanomotif/mtase_linker/setup.smk<br /> Traceback (most recent call last):<br /> File "/home/miniconda3/envs/nanomotif/bin/nanomotif", line 10, in <module><br /> sys.exit(main())<br /> ^^^^^^<br /> File "/home/miniconda3/envs/nanomotif/lib/python3.12/site-packages/nanomotif/main.py", line 513, in main<br /> mtase_linker(args)<br /> File "/home/miniconda3/envs/nanomotif/lib/python3.12/site-packages/nanomotif/main.py", line 475, in mtase_linker<br /> snakemake_create_environments(args)<br /> File "/home/miniconda3/envs/nanomotif/lib/python3.12/site-packages/nanomotif/mtase_linker/dependencies.py", line 24, in snakemake_create_environments<br /> status = snakemake.snakemake(snakefile,<br /> ^^^^^^^^^^^^^^^^^^^<br /> AttributeError: module 'snakemake' has no attribute 'snakemake'