Mapping of binding sites for heparin, plasminogen activator inhibitor-1, and plasminogen to vitronectin's heparin-binding region reveals a novel vitronectin-dependent feedback mechanism for the control of plasmin formation.

Abstract excerpt

Vitronectin (VN) has been implicated as a major matrix-associated regulator component of plasminogen activation by serving as a potent stabilizing cofactor of plasminogen activator inhibitor-1 (PAI-1). The direct binding of heparin, plasminogen as well as PAI-1 in its latent and active form to immobilized VN was studied in the absence or presence of competitors. Monoclonal antibodies against the carboxyl-terminal...

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