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Cat. No. Species Product Description Structure Purity Feature
SPB-S5115 Streptococcus pyogenes SpeB (40U/μl)
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Synonym Name

Streptopain,Exotoxin type B,Streptococcal cysteine proteinase


SpeB is derived from Streptococcus pyogenes. It is an important streptococcal virulence factor which cleaves human fibronectin and degrades vitronectin. It also cleaves human IL1B precursor to form biologically active IL1B and can induce apoptosis in human monocytes and epithelial cells in vitro, reduces phagocytic activity in monocytic cells. Thus, it may play a role in bacterial colonization, invasion, and inhibition of wound healing.

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