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Title: Mechanism of factor VIII inactivation by human antibodies. III. Proteolytic cleavage of factor VIII:C and C antigen by thrombin. Author: Lazarchick J, Ashby MA, Lazarchick JJ, Sens DA. Journal: Ann Clin Lab Sci; 1985; 15(6):482-7. PubMed ID: 3933404. Abstract: Thrombin activation of factor VIII results in a marked, but transient, increase in factor VIII procoagulant activity. This proteolytic process has been examined by immobilizing factor VIII in a solid phase system using mouse monoclonal antibody specific for the factor VIII related antigen. These studies demonstrate that thrombin activation is the result of proteolytic cleavage from the factor VIII:C protein of a peptide fragment which contains both the factor VIII:C procoagulant and VIII:C antigen sites recognized by human antibodies.[Abstract] [Full Text] [Related] [New Search]