{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,29]],"date-time":"2026-07-29T05:12:07Z","timestamp":1785301927992,"version":"3.55.0"},"reference-count":74,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2024,7,23]],"date-time":"2024-07-23T00:00:00Z","timestamp":1721692800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"University of Maine Biomedical Sciences Accelerator Fund Program"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Pathogens"],"abstract":"<jats:p>Prophages, viral genomes integrated into bacterial genomes, are known to enhance bacterial colonization, adaptation, and ecological fitness, providing a better chance for pathogenic bacteria to disseminate and cause infection. Streptococcus agalactiae (Group B Streptococcus or GBS) is a common bacterium found colonizing the genitourinary tract of humans. However, GBS-colonized pregnant women are at risk of passing the organism to the neonate, where it can cause severe infections. GBS typically encode one or more prophages in their genomes, yet their role in pathogen fitness and virulence has not yet been described. Sequencing and bioinformatic analysis of the genomic content of GBS human isolates identified 42 complete prophages present in their genomes. Comparative genomic analyses of the prophage sequences revealed that the prophages could be classified into five distinct clusters based on their genomic content, indicating significant diversity in their genetic makeup. Prophage diversity was also identified across GBS capsule serotypes, sequence types (STs), and clonal clusters (CCs). Comprehensive genomic annotation revealed that all GBS strains encode paratox, a protein that prevents the uptake of DNA in Streptococcus, either on the chromosome, on the prophage, or both, and each prophage genome has at least one toxin-antitoxin system.<\/jats:p>","DOI":"10.3390\/pathogens13080610","type":"journal-article","created":{"date-parts":[[2024,7,24]],"date-time":"2024-07-24T10:46:20Z","timestamp":1721817980000},"page":"610","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Comparative Genomic Analysis of Prophages in Human Vaginal Isolates of Streptococcus agalactiae"],"prefix":"10.3390","volume":"13","author":[{"given":"Caitlin S.","family":"Wiafe-Kwakye","sequence":"first","affiliation":[{"name":"Department of Molecular and Biomedical Sciences, University of Maine, Orono, ME 04469, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrew","family":"Fournier","sequence":"additional","affiliation":[{"name":"Department of Molecular and Biomedical Sciences, University of Maine, Orono, ME 04469, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-2140-4460","authenticated-orcid":false,"given":"Hannah","family":"Maurais","sequence":"additional","affiliation":[{"name":"Department of Molecular and Biomedical Sciences, University of Maine, Orono, ME 04469, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katie J.","family":"Southworth","sequence":"additional","affiliation":[{"name":"Department of Molecular and Biomedical Sciences, University of Maine, Orono, ME 04469, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sally D.","family":"Molloy","sequence":"additional","affiliation":[{"name":"Department of Molecular and Biomedical Sciences, University of Maine, Orono, ME 04469, USA"},{"name":"The Honors College, University of Maine, Orono, ME 04469, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Melody N.","family":"Neely","sequence":"additional","affiliation":[{"name":"Department of Molecular and Biomedical Sciences, University of Maine, Orono, ME 04469, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,7,23]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"S100","DOI":"10.1093\/cid\/cix658","article-title":"Maternal Colonization with Group B Streptococcus and Serotype Distribution Worldwide: Systematic Review and Meta-Analyses","volume":"65","author":"Russell","year":"2017","journal-title":"Clin. 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