16S rRNA data and metadata for "Chemoproteomic identification of a DPP4 homolog in Bacteroides thetaiotaomicron"

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Abstract/Contents

Abstract
Serine hydrolases play important roles in signaling and human metabolism, yet little is known about their functions in gut commensal bacteria. Using bioinformatics and chemoproteomics, we identify serine hydrolases in the gut commensal Bacteroides thetaiotaomicron that are specific to the Bacteroidetes phylum. Two are predicted homologs of the human protease dipeptidyl peptidase 4 (hDPP4), a key enzyme that regulates insulin signaling. Functional studies reveal that BT4193 is a true homolog of hDPP4 that can be inhibited by FDA-approved type 2 diabetes medications targeting hDPP4, while the other is a misannotated proline-specific triaminopeptidase. We demonstrate that BT4193 is important for envelope integrity and that loss of BT4193 reduces B. thetaiotaomicron fitness during in vitro growth within a diverse community. However, neither function is dependent on BT4193 proteolytic activity, suggesting a scaffolding or signaling function for this bacterial protease.

Description

Type of resource Dataset, text
Date created [ca. April 2022]
Publication date April 16, 2023; April 15, 2023

Creators/Contributors

Author Keller, Laura J.
Author Nguyen, Taylor H. ORCiD icon https://orcid.org/0000-0002-1288-8882 (unverified)
Author Liu, Lawrence
Author Hurysz, Brianna M.
Author Lakemeyer, Markus
Author Guerra, Matteo
Author Gelsinger, Danielle J.
Author Chanin, Rachael
Author Ngo, Nhi
Author Lum, Kenneth M.
Author Faucher, Franco
Author Ipock, Phillip
Author Niphakis, Micah J.
Author Bhatt, Ami S.
Author O'Donoghue, Anthony J.
Author Huang, Kerwyn Casey
Author Bogyo, Matthew

Subjects

Subject activity-based protein profiling; vancomycin; polymyxin B; gut bacterial communities; synthetic communities; microbiota; microbiome
Genre Data
Genre Manuscript
Genre Data sets
Genre Dataset

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This work is licensed under an Open Data Commons Attribution License v1.0.

Preferred citation

Preferred citation
Keller, L., Nguyen, T., Liu, L., Hurysz, B., Lakemeyer, M., Guerra, M., Gelsinger, D., Chanin, R., Ngo, N., Lum, K., Faucher, F., Ipock, P., Niphakis, M., Bhatt, A., O'Donoghue, A., Huang, K., and Bogyo, M. (2023). 16S rRNA data and metadata for "Chemoproteomic identification of a DPP4 homolog in Bacteroides thetaiotaomicron". Stanford Digital Repository. Available at https://purl.stanford.edu/rn970zy4428. https://doi.org/10.25740/rn970zy4428.

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