Impaired human tissue factor-mediated activity in blood clotting factor VIINagoya (Arg304-->Trp). Evidence that a region in the catalytic domain of factor VII is important for the association with tissue factor.

Abstract excerpt

A 37-year-old man was found to have an inherited abnormal factor VII (FVII) (designated FVIINagoya) that has a lower FVII procoagulant activity when tested in a one-stage assay using rabbit, simian, or human tissue factor (TF), but surprisingly has a nearly normal activity using bovine TF. DNA sequence analysis of the propositus' FVII gene revealed a C to T mutation that results in a novel amino acid substitution...

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