{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,27]],"date-time":"2026-09-27T02:43:36Z","timestamp":1790477016750,"version":"4.1.0"},"update-to":[{"DOI":"10.1371\/journal.ppat.1009763","type":"new_version","label":"New version","source":"publisher","updated":{"date-parts":[[2021,7,30]],"date-time":"2021-07-30T00:00:00Z","timestamp":1627603200000}}],"reference-count":65,"publisher":"Public Library of Science (PLoS)","issue":"7","license":[{"start":{"date-parts":[[2021,7,20]],"date-time":"2021-07-20T00:00:00Z","timestamp":1626739200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["31770132"],"award-info":[{"award-number":["31770132"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["21974002"],"award-info":[{"award-number":["21974002"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100005089","name":"Beijing Municipal Natural Science Foundation","doi-asserted-by":"publisher","award":["5202012"],"award-info":[{"award-number":["5202012"]}],"id":[{"id":"10.13039\/501100005089","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["www.plospathogens.org"],"crossmark-restriction":false},"short-container-title":["PLoS Pathog"],"abstract":"<jats:p>\n                    Sensing and resisting oxidative stress is critical for\n                    <jats:italic>Vibrio cholerae<\/jats:italic>\n                    to survive in either the aquatic environment or the gastrointestinal tract. Previous studies mainly focused on the mechanisms of oxidative stress response regulation that rely on enzymatic antioxidant systems, while functions of non-enzymatic antioxidants are rarely discussed in\n                    <jats:italic>V<\/jats:italic>\n                    .\n                    <jats:italic>cholerae<\/jats:italic>\n                    . For the first time, we investigated the role of hydrogen sulfide (H\n                    <jats:sub>2<\/jats:sub>\n                    S), the simplest thiol compound, in protecting\n                    <jats:italic>V<\/jats:italic>\n                    .\n                    <jats:italic>cholerae<\/jats:italic>\n                    against oxidative stress. We found that degradation of L-cysteine by putative cystathionine \u03b2-synthase (CBS) is the major source of endogenous H\n                    <jats:sub>2<\/jats:sub>\n                    S in\n                    <jats:italic>V<\/jats:italic>\n                    .\n                    <jats:italic>cholerae<\/jats:italic>\n                    . Our results indicate that intracellular H\n                    <jats:sub>2<\/jats:sub>\n                    S level has a positive correlation with\n                    <jats:italic>cbs<\/jats:italic>\n                    expression, while the enhanced H\n                    <jats:sub>2<\/jats:sub>\n                    S production can render\n                    <jats:italic>V<\/jats:italic>\n                    .\n                    <jats:italic>cholerae<\/jats:italic>\n                    cells less susceptible to H\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>2<\/jats:sub>\n                    <jats:italic>in vitro<\/jats:italic>\n                    . Using proteome analysis and real-time qPCR assay, we found that\n                    <jats:italic>cbs<\/jats:italic>\n                    expression could stimulate the expression of several enzymatic antioxidants, including reactive oxygen species (ROS) detoxifying enzymes SodB, KatG and AhpC, the DNA protective protein DPS and the protein redox regulator Trx1. Assays of ROS detoxification capacities revealed that CBS-derived H\n                    <jats:sub>2<\/jats:sub>\n                    S could promote catalase activity at the post-translational level, especially for KatB, which serves as an important way that endogenous H\n                    <jats:sub>2<\/jats:sub>\n                    S participates in H\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>2<\/jats:sub>\n                    detoxification. The enhancement of catalase activity by H\n                    <jats:sub>2<\/jats:sub>\n                    S is achieved through facilitating the uptake of iron. Adult mice experiments showed that\n                    <jats:italic>cbs<\/jats:italic>\n                    mutant has colonization defect, while either complementation of\n                    <jats:italic>cbs<\/jats:italic>\n                    or exogenous supplement of N-Acetyl-L-Cysteine restores its fitness in the host environment. Herein, we proposed that\n                    <jats:italic>V<\/jats:italic>\n                    .\n                    <jats:italic>cholerae<\/jats:italic>\n                    regulates CBS-dependent H\n                    <jats:sub>2<\/jats:sub>\n                    S production for better survival and proliferation under ROS stress.\n                  <\/jats:p>","DOI":"10.1371\/journal.ppat.1009763","type":"journal-article","created":{"date-parts":[[2021,7,20]],"date-time":"2021-07-20T13:55:54Z","timestamp":1626789354000},"page":"e1009763","update-policy":"https:\/\/doi.org\/10.1371\/journal.ppat.corrections_policy","source":"Crossref","is-referenced-by-count":37,"title":["CBS-derived H2S facilitates host colonization of Vibrio cholerae by promoting the iron-dependent catalase activity of KatB"],"prefix":"10.1371","volume":"17","author":[{"given":"Yao","family":"Ma","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoman","family":"Yang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hongou","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zixin","family":"Qin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chunrong","family":"Yi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3634-9621","authenticated-orcid":true,"given":"Changping","family":"Shi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mei","family":"Luo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guozhong","family":"Chen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jin","family":"Yan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoyun","family":"Liu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8695-9276","authenticated-orcid":true,"given":"Zhi","family":"Liu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2021,7,20]]},"reference":[{"key":"ppat.1009763.ref001","unstructured":"WHO. 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