Complement C3 Convertase, Classical Pathway

C3 Convertase (C4b2a); Classical C3 Convertase; Classical Pathway C3 Convertase; C3 Convertase, Classical
A serine protease that cleaves multiple COMPLEMENT 3 into COMPLEMENT 3A (anaphylatoxin) and COMPLEMENT 3B in the CLASSICAL COMPLEMENT ACTIVATION PATHWAY. It is a complex of COMPLEMENT 4B and COMPLEMENT 2A (C4b2a).