{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,19]],"date-time":"2025-12-19T15:51:11Z","timestamp":1766159471258,"version":"3.41.2"},"reference-count":43,"publisher":"Oxford University Press (OUP)","license":[{"start":{"date-parts":[[2024,1,1]],"date-time":"2024-01-01T00:00:00Z","timestamp":1704067200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"funder":[{"DOI":"10.13039\/501100001691","name":"JSPS","doi-asserted-by":"publisher","award":["JP18K07130"],"award-info":[{"award-number":["JP18K07130"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,1,9]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Vibrio parahaemolyticus has two sets of type III secretion systems that are major pathogenic factors: T3SS1 (cytotoxicity) and T3SS2 (enterotoxicity). V. parahaemolyticus mainly colonizes the distal small intestine after oral infection and may be exposed to carbon-limiting stress due to the lack of readily available carbohydrates in this environment. Catabolite activator protein (CAP), a transcription factor involved in carbon-limiting metabolism in many Gram-negative bacteria, is well known to be involved in the regulation of the expression of many virulence factors. In this study, we determined the effects of CAP on the expression of T3SSs in this bacterium. Based on a lactate dehydrogenase-based cytotoxicity assay, CAP was found to have a greater contribution to the expression of T3SS2-dependent cytotoxicity than to that of T3SS1. Reverse transcription quantitative PCR revealed decreased expression of many T3SS2-related genes, including vpa1348, in the cap gene deletion mutant compared to the parent strain. CAP was demonstrated to bind near the T-rich elements within the vpa1348 promoter region in an electrophoretic mobility shift assay and DNase I footprinting. CAP also enhanced the expression of vpa1348 in a \u03b2-galactosidase reporter assay. Collectively, these results suggest that CAP is involved in T3SS2-mediated virulence by regulating the expression of vpa1348 in V. parahaemolyticus.<\/jats:p>","DOI":"10.1093\/femsle\/fnae054","type":"journal-article","created":{"date-parts":[[2024,7,26]],"date-time":"2024-07-26T01:09:50Z","timestamp":1721956190000},"source":"Crossref","is-referenced-by-count":2,"title":["Expression regulation of type III secretion system 2 in <i>Vibrio parahaemolyticus<\/i> by catabolite activator protein"],"prefix":"10.1093","volume":"371","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-3448-3918","authenticated-orcid":false,"given":"Tomotaka","family":"Tanabe","sequence":"first","affiliation":[{"name":"Laboratory of Hygienic Chemistry, College of Pharmaceutical Sciences, Matsuyama University , Matsuyama, Ehime 790-8578 , Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mitsuki","family":"Tsukamoto","sequence":"additional","affiliation":[{"name":"Laboratory of Hygienic 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