Target Information

Target General Infomation
Target ID
T66011
Former ID
TTDI02354
Target Name
Complement Factor B
Gene Name
CFB
Synonyms
C3/C5 convertase; Complement factor B; Complement factor B Bb fragment; GBG; Glycinerich beta glycoprotein; PBF2; Properdin factor B; CFB
Target Type
Discontinued
Disease Age related macular degeneration [ICD9: 362.5; ICD10: H35.3]
Asthma [ICD10: J45]
Coronary artery disease [ICD9: 410-414, 429.2; ICD10: I20-I25]
Function
Factor B which is part of the alternate pathway of the complement system is cleaved by factor D into 2 fragments: Ba and Bb. Bb, a serine protease, then combines with complement factor 3b to generate the C3 or C5 convertase. It has also been implicated in proliferation and differentiation of preactivated B- lymphocytes, rapid spreading of peripheral blood monocytes, stimulation of lymphocyte blastogenesis and lysis of erythrocytes. Bainhibits the proliferation of preactivated B-lymphocytes.
BioChemical Class
Peptidase
UniProt ID
P00751
EC Number
EC 3.4.21.47
Sequence
MGSNLSPQLCLMPFILGLLSGGVTTTPWSLARPQGSCSLEGVEIKGGSFRLLQEGQALEY
VCPSGFYPYPVQTRTCRSTGSWSTLKTQDQKTVRKAECRAIHCPRPHDFENGEYWPRSPY
YNVSDEISFHCYDGYTLRGSANRTCQVNGRWSGQTAICDNGAGYCSNPGIPIGTRKVGSQ
YRLEDSVTYHCSRGLTLRGSQRRTCQEGGSWSGTEPSCQDSFMYDTPQEVAEAFLSSLTE
TIEGVDAEDGHGPGEQQKRKIVLDPSGSMNIYLVLDGSDSIGASNFTGAKKCLVNLIEKV
ASYGVKPRYGLVTYATYPKIWVKVSEADSSNADWVTKQLNEINYEDHKLKSGTNTKKALQ
AVYSMMSWPDDVPPEGWNRTRHVIILMTDGLHNMGGDPITVIDEIRDLLYIGKDRKNPRE
DYLDVYVFGVGPLVNQVNINALASKKDNEQHVFKVKDMENLEDVFYQMIDESQSLSLCGM
VWEHRKGTDYHKQPWQAKISVIRPSKGHESCMGAVVSEYFVLTAAHCFTVDDKEHSIKVS
VGGEKRDLEIEVVLFHPNYNINGKKEAGIPEFYDYDVALIKLKNKLKYGQTIRPICLPCT
EGTTRALRLPPTTTCQQQKEELLPAQDIKALFVSEEEKKLTRKEVYIKNGDKKGSCERDA
QYAPGYDKVKDISEVVTPRFLCTGGVSPYADPNTCRGDSGGPLIVHKRSRFIQVGVISWG
VVDVCKNQKRQKQVPAHARDFHINLFQVLPWLKEKLQDEDLGFL
Drugs and Mode of Action
Drug(s) CAB-2 Drug Info Discontinued in Phase 1 Coronary artery disease [546768]
Inhibitor CAB-2 Drug Info [526294]
compound 51 Drug Info [530373]
Target Expression Profile (TEP) and Drug Resistance Mutation (DRM)
TEP EXP Info
Pathways
KEGG Pathway Complement and coagulation cascades
Staphylococcus aureus infection
NetPath Pathway TGF_beta_Receptor Signaling Pathway
Reactome Alternative complement activation
Activation of C3 and C5
Regulation of Complement cascade
WikiPathways Complement and Coagulation Cascades
Human Complement System
Complement cascade
References
Ref 546768Trusted, scientifically sound profiles of drug programs, clinical trials, safety reports, and company deals, written by scientists. Springer. 2015. Adis Insight (drug id 800010210)
Ref 526294A soluble chimeric inhibitor of C3 and C5 convertases, complement activation blocker-2, prolongs graft survival in pig-to-rhesus monkey heart transplantation. Xenotransplantation. 2002 Mar;9(2):125-34.
Ref 530373Structure-activity relationships for substrate-based inhibitors of human complement factor B. J Med Chem. 2009 Oct 8;52(19):6042-52.
Ref 543596(http://www.guidetopharmacology.org/) Nucleic Acids Res. 2015 Oct 12. pii: gkv1037. The IUPHAR/BPS Guide to PHARMACOLOGY in 2016: towards curated quantitative interactions between 1300 protein targets and 6000 ligands. (Target id: 2339).

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