QuickView for complement c4b (compound)

Name:	Complement C4b
Description:	The large fragment formed when COMPLEMENT C4 is cleaved by COMPLEMENT C1S. The membrane-bound C4b binds COMPLEMENT C2A, a SERINE PROTEASE, to form C4b2a (CLASSICAL PATHWAY C3 CONVERTASE) and subsequent C4b2a3b (CLASSICAL PATHWAY C5 CONVERTASE).
Synonyms:	Component 4b, Complement; Complement, C4b; Complement 4b; C4b, Complement; C4b Complement; Complement Component 4b