MeSH definition : A 150-kDa serum glycoprotein composed of three subunits with each encoded by a different
gene (C8A; C8B; and C8G). This heterotrimer contains a disulfide-linked C8alpha-C8gamma
heterodimer and a noncovalently associated C8beta chain. C8 is the next component
to bind the C5-7 complex forming C5b-8 that binds COMPLEMENT C9 and acts as a catalyst
in the polymerization of C9.;
A 150-kDa serum glycoprotein composed of three subunits with each encoded by a different
gene (C8A; C8B; and C8G). This heterotrimer contains a disulfide-linked C8alpha-C8gamma
heterodimer and a noncovalently associated C8beta chain. C8 is the next component
to bind the C5-7 complex forming C5b-8 that binds COMPLEMENT C9 and acts as a catalyst
in the polymerization of C9.