in assays using purified prothrombinase components , factor xa , factor va , phospholipid vesicles , and calcium ion with the fluorescent active site thrombin inhibitor dansylarginyl-n- ( 3-ethyl-1,5-pentanediyl ) amide , the antibody inhibited the conversion of prothrombin to thrombin .
C0015518
prothrombinase
C0015520
factor xa