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Staphopain A

UniProtKB accession:  P81297
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Go to UniProtKB:  P81297
UniProtKB description:  Cysteine protease that plays an important role in the inhibition of host innate immune response. Cleaves host elastins found in connective tissues, pulmonary surfactant protein A in the lungs, and the chemokine receptor CXCR2 on leukocytes (PubMed:23235402, PubMed:3422637). Proteolytic cleavage of surfactant protein A impairs bacterial phagocytosis by neutrophils while CXCR2 degradation blocks neutrophil activation and chemotaxis (PubMed:23235402, PubMed:3422637). Additionally, promotes vascular leakage by activating the plasma kallikerin/kinin system, resulting in hypotension (PubMed:15897280).
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