{SNA} 3.4.x.x Peptidases, 3.x.x.x Hydrolases, Coagulation Proteins and Reagents, Enzyme Class Index, Plasma & Blood Proteins, Plasma, Blood, and Related Proteins and Reagents, Protein C, Proteolytic Enzymes, Proteolytic Enzymes and Substrates, 生化试剂, 蛋白质及衍生物, 酶、抑制剂和底物