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Complement C5 Convertase, Alternative Pathway MeSH Descriptor Data 2026


MeSH Heading
Complement C5 Convertase, Alternative Pathway
Tree Number(s)
D12.776.124.486.274.045.387.500.750
Unique ID
D051566
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D051566
Scope Note
A serine protease that cleaves multiple COMPLEMENT C5 into COMPLEMENT C5A (anaphylatoxin) and COMPLEMENT C5B in the ALTERNATIVE COMPLEMENT ACTIVATION PATHWAY. It is the complex of ALTERNATIVE PATHWAY C3 CONVERTASE (C3bBb) with an additional COMPLEMENT C3B, or C3bBb3b.
Entry Term(s)
Alternative Pathway C5 Convertase
C5 Convertase (C3bBb3b)
C5 Convertase, Alternative Pathway
Pharm Action
Immunologic Factors
Registry Numbers
EC 3.4.21.47
Previous Indexing
Complement Activating Enzymes (1978-2005)
Complement C5 (1976-2005)
Public MeSH Note
2006
History Note
2006
Date Introduced
2006/01/01
Last Updated
2006/07/05
Complement C5 Convertase, Alternative Pathway Preferred
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