ArticleFrontiers in cellular and infection microbiology2024
Strain-level genomic analysis of serotype, genotype and virulence gene composition of group B streptococcus.
Article in Frontiers in cellular and infection microbiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed.
- The emergence and biological characteristics of linezolid-resistantEmerging microbes & infections · 2026Article
- Facing Antimicrobial Resistance and Virulence in Streptococcus agalactiae During Late Pregnancy: Evaluation of Lactobacilli as a Supportive Approach.MicrobiologyOpen · 2026Article
- A nationwide study of invasive Streptococcus agalactiae in the Faroe Islands from 2009 to 2024.Scientific reports · 2026Article
- Fibrinogen in extracellular matrix remodeling: functional switching, source heterogeneity, and biomaterial translation.Frontiers in cell and developmental biology · 2026Review
- Construction of a risk prediction model for premature rupture of membranes based on vaginal microecology and systemic inflammation: a prospective cohort study.Frontiers in cellular and infection microbiology · 2026Article
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Authors and funding
10 authors.
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Abstract
Introduction: GBS (group B streptococcus) is an opportunistic pathogen that can colonize healthy individuals but presents significant challenges in clinical obstetrics and gynecology, as it can cause miscarriage, preterm birth, and invasive infections in newborns. To develop specific and personalized preventative strategies, a better understanding of the epidemiological characteristics and pathogenic features of GBS is essential. Methods: We conducted a comprehensive strain-level genomic analysis of GBS, examining serotype and genotype distributions, as well as the composition and correlations of virulence genes using the blastn-short mode of the BLAST program(v2.10.0+), mlstsoftware (https://github.com/tseemann/mlst), Snippy (v4.6.0), FastTree (v2.1.11) and iTOL. The coding sequence region of virulence factors was annotated by Prodigal (v2.6.3) and Glimmer(v3.02b). We further identified host protein interacting with Srr2 by mass spectrometry analysis. Results: While certain genotypes showed strong serotype consistency, there was no significant association between overall serotypes and genotypes. However, the composition of virulence genes was more closely related to the phylogeny of GBS, among which simultaneous presence of Srr2 and HygA exhibit significant association with hypervirulence. Tubulin emerged as the most distinct and abundant hit. The specific interaction of Tubulin with Srr2-BR, rather than Srr1-BR, was further confirmed by immunoblotting. Discussion: Considering the impact of cytoskeleton rearrangement on GBS pathogenesis, this observation offers a plausible explanation for the hypervirulence triggered by Srr2. Collectively, our findings indicate that in the future clinical practice, virulence gene detection should be given more attention to achieve precise GBS surveillance and disease prevention.
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