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3FRP

Crystal Structure of Cobra Venom Factor, a Co-factor for C3- and C5 convertase CVFBb

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Cobra venom factor alpha chainpolymer62769582.01UniProt (Q91132)
Pfam (PF17790)
Pfam (PF01835)
Pfam (PF17791)
Pfam (PF17789)
Pfam (PF07703)
Naja kaouthia (Monocled cobra)CVF, Complement C3 homolog, Cobra venom factor alpha chain, Cobra venom factor gamma chain, Cobra venom factor beta chain
2B
(G)
Cobra venom factor gamma chainpolymer25228418.61UniProt (Q91132)
Pfam (PF21406)
Pfam (PF00207)
Naja kaouthia (Monocled cobra)CVF, Complement C3 homolog, Cobra venom factor alpha chain, Cobra venom factor gamma chain, Cobra venom factor beta chain
3C
(B)
Cobra venom factor beta chainpolymer37943626.51UniProt (Q91132)
Pfam (PF21308)
Pfam (PF07677)
Pfam (PF01759)
Naja kaouthia (Monocled cobra)CVF, Complement C3 homolog, Cobra venom factor alpha chain, Cobra venom factor gamma chain, Cobra venom factor beta chain
4D
(A)
CALCIUM IONnon-polymer40.11Chemie (CA)
5E, F, G
(A, G, B)
waterwater18.080Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains3
Total formula weight141627.1
Non-Polymers*Number of molecules1
Total formula weight40.1
All*Total formula weight141667.2
*Water molecules are not included.

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PDB entries from 2025-07-02

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