《英文msh词典》3,Complement
[入口词] 3,Complement
[主题词] Complement 3
[英文释义] The fourth component to attach in the complement reaction sequence. It is a beta-globulin with a sedimentation coefficient of 5.5,a molecular weight of 185,000 and a serum concentration of 1.3 micrograms/ml. Its fragments have anaphylatoxic,chemotactic,and histaminic action and affect smooth muscle.