Human kininogens interact with M protein, a bacterial surface protein and virulence determinant

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Human kininogens interact with M protein, a bacterial surface protein and virulence determinant.

Streptococcus pyogenes, the most significant streptococcal species in clinical medicine, expresses surface proteins with affinity for several human plasma proteins. Here we report that kininogens, the precursors to the vasoactive kinins, bind to the surface of S. pyogenes. M protein, a surface molecule and a major virulence factor-in these bacteria, occurs in > 80 different serotypes. Among 49 ...

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Increased vascular permeability is a key feature of inflammatory conditions. In severe infections, leakage of plasma from the vasculature induces a life-threatening hypotension. Streptococcus pyogenes, a major human bacterial pathogen, causes a toxic shock syndrome (STSS) characterized by excessive plasma leakage and multi-organ failure. Here we find that M protein, released from the streptococ...

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ژورنال

عنوان ژورنال: Biochemical Journal

سال: 1995

ISSN: 0264-6021,1470-8728

DOI: 10.1042/bj3050173