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Natl. Acad. Sci. U.S.A."],"published-print":{"date-parts":[[2024,10,8]]},"abstract":"<jats:p>\n                    Protein acetylation is a common and reversible posttranslational modification tightly governed by protein acetyltransferases and deacetylases crucial for various biological processes in both eukaryotes and prokaryotes. Although recent studies have characterized many acetyltransferases in diverse bacterial species, only a few protein deacetylases have been identified in prokaryotes, perhaps in part due to their limited sequence homology. In this study, we identified YkuR, encoded by\n                    <jats:italic>smu_318<\/jats:italic>\n                    , as a unique protein deacetylase in\n                    <jats:italic>Streptococcus mutans<\/jats:italic>\n                    . Through protein acetylome analysis, we demonstrated that the deletion of\n                    <jats:italic>ykuR<\/jats:italic>\n                    significantly upregulated protein acetylation levels, affecting key enzymes in translation processes and metabolic pathways, including starch and sucrose metabolism, glycolysis\/gluconeogenesis, and biofilm formation. In particular, YkuR modulated extracellular polysaccharide synthesis and biofilm formation through the direct deacetylation of glucosyltransferases (Gtfs) in the presence of NAD\n                    <jats:sup>+<\/jats:sup>\n                    . Intriguingly, YkuR can be acetylated in a nonenzymatic manner, which then negatively regulated its deacetylase activity, suggesting the presence of a self-regulatory mechanism. Moreover, in vivo studies further demonstrated that the deletion of\n                    <jats:italic>ykuR<\/jats:italic>\n                    attenuated the cariogenicity of\n                    <jats:italic>S. mutans<\/jats:italic>\n                    in the rat caries model, substantiating its involvement in the pathogenesis of dental caries. Therefore, our study revealed a unique regulatory mechanism mediated by YkuR through protein deacetylation that regulates the physiology and pathogenicity of\n                    <jats:italic>S. mutans<\/jats:italic>\n                    .\n                  <\/jats:p>","DOI":"10.1073\/pnas.2407820121","type":"journal-article","created":{"date-parts":[[2024,10,2]],"date-time":"2024-10-02T13:31:37Z","timestamp":1727875897000},"update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":4,"title":["YkuR functions as a protein deacetylase in\n                    <i>Streptococcus mutans<\/i>"],"prefix":"10.1073","volume":"121","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4247-0134","authenticated-orcid":false,"given":"Qizhao","family":"Ma","sequence":"first","affiliation":[{"name":"Laboratory of Oral Microbiology, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China"},{"name":"Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing","family":"Li","sequence":"additional","affiliation":[{"name":"Laboratory of Oral Microbiology, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China"},{"name":"Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shuxing","family":"Yu","sequence":"additional","affiliation":[{"name":"Laboratory of Oral Microbiology, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China"},{"name":"Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing","family":"Zhou","sequence":"additional","affiliation":[{"name":"Laboratory of Oral Microbiology, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China"},{"name":"Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6865-9819","authenticated-orcid":false,"given":"Yaqi","family":"Liu","sequence":"additional","affiliation":[{"name":"Laboratory of Oral Microbiology, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China"},{"name":"Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xinyue","family":"Wang","sequence":"additional","affiliation":[{"name":"Laboratory of Oral Microbiology, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China"},{"name":"Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dingwei","family":"Ye","sequence":"additional","affiliation":[{"name":"Laboratory of Oral Microbiology, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China"},{"name":"Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yumeng","family":"Wu","sequence":"additional","affiliation":[{"name":"Laboratory of Oral Microbiology, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China"},{"name":"Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tao","family":"Gong","sequence":"additional","affiliation":[{"name":"Laboratory of Oral Microbiology, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qiong","family":"Zhang","sequence":"additional","affiliation":[{"name":"Laboratory of Oral Microbiology, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China"},{"name":"Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lingyun","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06510"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing","family":"Zou","sequence":"additional","affiliation":[{"name":"Laboratory of Oral Microbiology, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China"},{"name":"Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, 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Ma UA159_ykuR_Deletion. Genome Warehouse in National Genomics Data Center. https:\/\/ngdc.cncb.ac.cn\/gwh\/Assembly\/85357\/show. 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