ArticleThe Journal of biological chemistry2014
Mutual exclusivity of hyaluronan and hyaluronidase in invasive group A Streptococcus.
Article in The Journal of biological chemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
32 citing papers in PubMed, 39 citations in OpenAlex.
- Mechanisms underlying pyogenic bacterial infections of the skin.Archives of microbiology · 2026Review
- A teichoic acid-like wall modification associated with immune suppression is socially regulated inmBio · 2026Article
- Microbial Hyaluronidases: From Obscure Virulence Factors to Promising Therapeutic Targets.Biomolecules · 2026Review
- A teichoic acid-like wall modification associated with immune suppression is socially regulated inbioRxiv : the preprint server for biology · 2026Article
- Article
- Global spread of Streptococcus pyogenes A genomics-supported narrative review.FEMS microbiology reviews · 2025Review
- The intricate pathogenicity of Group AVirulence · 2024Review
- Conserved molecular chaperone PrsA stimulates protective immunity against group A Streptococcus.NPJ vaccines · 2024Article
- Detoxification of reactive oxygen species by the hyaluronic acid capsule of group AInfection and immunity · 2023Article
- Identification of distinct impacts of CovS inactivation on the transcriptome of acapsular group A streptococci.mSystems · 2023Article
- Integrative omics identifies conserved and pathogen-specific responses of sepsis-causing bacteria.Nature communications · 2023Article
- Group A Streptococcus Infections: Their Mechanisms, Epidemiology, and Current Scope of Vaccines.Cureus · 2022Review
- The exploitation of human glycans by Group A Streptococcus.FEMS microbiology reviews · 2022Article
- Article
- Playing With Fire: Proinflammatory Virulence Mechanisms of Group AFrontiers in cellular and infection microbiology · 2021Review
- Cryptic prophages within aMicrobial genomics · 2021Article
- Genetic Characterization ofInfectious microbes & diseases · 2020Article
- Article
- To be capsulated or not be capsulated: that is the GAS question.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2019Article
- The Bacteriophages ofMicrobiology spectrum · 2019Review
Corrections and comments
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Authors and funding
19 authors at 7 institutions in 5 countries.
Funding
Abstract
A recent analysis of group A Streptococcus (GAS) invasive infections in Australia has shown a predominance of M4 GAS, a serotype recently reported to lack the antiphagocytic hyaluronic acid (HA) capsule. Here, we use molecular genetics and bioinformatics techniques to characterize 17 clinical M4 isolates associated with invasive disease in children during this recent epidemiology. All M4 isolates lacked HA capsule, and whole genome sequence analysis of two isolates revealed the complete absence of the hasABC capsule biosynthesis operon. Conversely, M4 isolates possess a functional HA-degrading hyaluronate lyase (HylA) enzyme that is rendered nonfunctional in other GAS through a point mutation. Transformation with a plasmid expressing hasABC restored partial encapsulation in wild-type (WT) M4 GAS, and full encapsulation in an isogenic M4 mutant lacking HylA. However, partial encapsulation reduced binding to human complement regulatory protein C4BP, did not enhance survival in whole human blood, and did not increase virulence of WT M4 GAS in a mouse model of systemic infection. Bioinformatics analysis found no hasABC homologs in closely related species, suggesting that this operon was a recent acquisition. These data showcase a mutually exclusive interaction of HA capsule and active HylA among strains of this leading human pathogen.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.