Article
M protein and hyaluronic acid capsule are essential for in vivo selection of covRS mutations characteristic of invasive serotype M1T1 group A Streptococcus.
mBio - 31 Aug 2010
Cole Jason N, Pence Morgan A, von Köckritz-Blickwede Maren, Hollands Andrew, Gallo Richard L, Walker Mark J, Nizet Victor
Abstract excerpt
The initiation of hyperinvasive disease in group A Streptococcus (GAS) serotype M1T1 occurs by mutation within the covRS two-component regulon (named covRS for control of virulence regulatory sensor kinase), which promotes resistance to neutrophil-mediated killing through the upregulation of bacteriophage-encoded Sda1 DNase. To determine whether other virulence factors contribute to this phase-switching...
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