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Keyword - Prothrombin activator (KW-0655)


Protein which activates prothrombin, the inactive precursor of thrombin. For example, staphylocoagulase, an extracellular protein produced by Staphylococcus aureus, forms a complex with prothrombin which can clot fibrinogen without any proteolytic cleavage of prothrombin.


Molecular function

Gene Ontology


positive regulation of peptidase activity [ GO:0010952 ]
peptidase activator activity [ GO:0016504 ]


Molecular functionProthrombin activator
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