Discovery of antimicrobial peptides in the global microbiome with machine learning
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Abstract
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The skin abscess infection
Do you have any insights if the same anti-infective properties would be shown in a different disease model? Such as infection not on the skin which would be easier to access but internally so that you would have to orally administer the AMP to the mouse?
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Five leadAMPs from different sources
How were the AMPs for screening chosen? You discovered 1000s of AMPs, how were specific ones prioritized for testing in the mouse model? Based on the in vitro assays, or ease of synthesis?
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All the c_AMPs predicted here can be accessed at https://ampsphere.big-data-biology.org/.Users can retrieve the peptide sequences, ORFs, and predicted biochemical properties of eachc_AMP (e.g., molecular weight, isoelectric point, and charge at pH 7.0). We also provide thedistribution across geographical regions, habitats, and microbial species for each c_AMP.5100102104106108110112114116118120122124126128.CC-BY 4.0 International licenseavailable under a(which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is madeThe copyright holder for this preprintthis version posted August 31, 2023.;https://doi.org/10.1101/2023.08.31.555663doi:bioRxiv preprint
Awesome resource!
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The large number of singletons suggests that most c_AMPs originated from processesother than diversification within families, which is the opposite of the supposed origin of full-lengthproteins, in which singleton families are rare46
This is an interesting observation and implication!
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o further assess the gene predictions,
It would maybe help the reader if these were summarized in the results and not just referenced to the corresponding methods
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Analogously to Sberro et al.36, we used a modified
Again, since this is a pivotol part of your analysis this should be explained more how this works and not just referenced
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was inferred as previously described96,
I think this is an important detail and shouldn't be a mention of as previously described and be in more detail
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ProGenomes2 database
From looking at this paper, it looks like the current release of this database only include high-quality genomes from isolates? Not including MAGs? This is possibly a limitation since you screened metagenomes but not MAGs, and you can now easily find compendia of MAGs that are curated from GTDB/IMG
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with Illuminainstrument
why only Illumina metagenomes? Because of the error-rates associated with metagenomes produced with Nanopore for example? I don't think you would have this issue with PacBio Hifi datasets, but also unsure of the amount of these datasets present in early 2020
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Accession numbers are listed in the supplementary tables
Which supplementary table? There are many and this would be useful to the reader
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redict and catalog the entire global microbiome
this sentence seems incomplete, to predict and catalog AMPs in global microbiomes? The abstract also focuses on animal-associated microbiomes, did you focus on this or include environmental microbiomes?
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Recently, proteome mining approaches have been developed toidentify antimicrobials in extinct organisms
This sentence feels a little abrupt given the previous sentence, especially since there isn't an expansion of this sentence the significance of AMPs in ancient organisms
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