Complement C4b [komplement C4b]

topical
6
Terms

komplement 4b

 

C4b Complement
Complement 4b
Complement Component 4b

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Definition

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).

DUI
D015935 MeSH Browser
CUI
M0024380
CAS
Complement C4b
Previous indexing
Complement 4 (1975-1989)
History note
2006 (1990)
Public note
2006; see COMPLEMENT 4B 1990-2005

complement C4c Chemical MeSH Browser

complement C4d Chemical MeSH Browser