Coagulase/Definition

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Coagulase [r]: Enzymes that cause coagulation in plasma by forming a complex with human prothrombin, and produced by certain bacteria including Staphylococcus species and Yersinia pestis. Staphylococci produce two types of coagulase: Staphylocoagulase, a free coagulase that produces true clotting of plasma, and Staphylococcal clumping factor, a bound coagulase in the cell wall that induces clumping of cells in the presence of fibrinogen.

This definition is at least in part based on: Anonymous (2023), Coagulase (English). Medical Subject Headings. U.S. National Library of Medicine.