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Complement Factor B MeSH Descriptor Data 2022


MeSH Heading
Complement Factor B
Tree Number(s)
D08.622.200
D08.811.277.656.300.760.198
D08.811.277.656.959.350.198
D12.776.124.486.274.900
D12.776.811.243.200
Unique ID
D011415
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D011415
Scope Note
A glycine-rich, heat-labile serum glycoprotein that contains a component of the C3 CONVERTASE ALTERNATE PATHWAY (C3bBb). Bb, a serine protease, is generated when factor B is cleaved by COMPLEMENT FACTOR D into Ba and Bb.
Entry Term(s)
Bb Fragment of Factor B
C3 Proactivator
C3PA
Complement 3 Proactivator
Complement Factor B Fragment, Bb
Complement Factor B, Alternative Pathway
Complement Factor B-Derived Fragment Bb
Complement Factor Ba
Complement Factor Bb
Complement Protein B
Complement Protein Factor B
Factor B
Properdin Factor B
Properdin Factor Ba
Properdin Factor Bb
Properdin Factor Bf
Properdin Factor Bf F1
Pharm Action
Immunologic Factors
Registry Number
EC 3.4.21.47
Related Numbers
EC 3.4.21.47
Previous Indexing
Complement 3 (1975-1977)
Enzyme Precursors (1966-1977)
Glycoproteins (1966-1977)
Public MeSH Note
99; see PROPERDIN FACTOR B 1991-98, see ENZYME PRECURSORS 1978-90; for COMPLEMENT FACTOR B see PROPERDIN FACTOR B 1988-98
History Note
99(78)
Date Established
1991/01/01
Date of Entry
1977/04/15
Revision Date
2019/05/30
Complement Factor B Preferred
Complement Factor Bb Narrower
Properdin Factor Bf F1 Narrower
Properdin Factor Bf Narrower
Complement Factor Ba Narrower
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