MeSH note : C3 plays a central role in the activation of the complement system, Its processing
by C3 convertase is the central reaction in both classical and alternative complement
pathways; HNP is a catabolite of C3 in urine of hereditary nephritis patients; C3a
anaphylatoxin is a processed form of C3 that mediates local inflammatory process;
RefSeq NM_000064;