Functional analysis of Streptococcus pyogenes nuclease A (SpnA), a novel group A streptococcal virulence factor

Abstract excerpt

Streptococcus pyogenes nuclease A (SpnA) is a recently discovered DNase that plays a role in virulence as shown in a mouse infection model. SpnA is the only cell wall-anchored DNase found in S. pyogenes thus far and shows a unique protein architecture. The C-terminal nuclease domain contains highly conserved catalytic site and Mg(2+) binding site residues. However, expression of the SpnA nuclease domain alone...

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