the products of optimal factor viii activation by the two enzymes , designated factor viiia ( t ) and factor viiia ( xa ) , are kinetically different in the activation of factor x by factor ixa , factor viiia ( t ) being approximately twice as active ( in factor x activation ) as factor viiia ( xa ) in the presence of ps : pc or platelets .
C0015506
products
C0015514
factor viiia