Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
BSCOP2B SuperfamilyFAD-binding/transporter-associated domain-like 8033519 3000913 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyFAD-linked oxidases C-terminal domain-like 8033517 3001317 SCOP2B (2022-06-29)
ASCOP2 FamilyCholesterol oxidase 8021137 4003547 SCOP2 (2022-06-29)
ASCOP2 FamilyFAD-linked oxidases, N-terminal domain 8021139 4002178 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyFAD-linked oxidases C-terminal domain-like 8033517 3001317 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyFAD-binding/transporter-associated domain-like 8033519 3000913 SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
BChol_subst-binde1i19B1 A: a+b two layersX: Alpha-beta plaitsH: FAD-linked oxidases, C-terminal domain (From Topology)T: FAD-linked oxidases, C-terminal domainF: Chol_subst-bindECOD (1.6)
BFAD_binding_4e1i19B2 A: a+b complex topologyX: FAD-binding domain-likeH: FAD-binding domain (From Topology)T: FAD-binding domainF: FAD_binding_4ECOD (1.6)
AChol_subst-binde1i19A1 A: a+b two layersX: Alpha-beta plaitsH: FAD-linked oxidases, C-terminal domain (From Topology)T: FAD-linked oxidases, C-terminal domainF: Chol_subst-bindECOD (1.6)
AFAD_binding_4e1i19A2 A: a+b complex topologyX: FAD-binding domain-likeH: FAD-binding domain (From Topology)T: FAD-binding domainF: FAD_binding_4ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
cholesterol oxidase  M-CSA #822

Cholesterol oxidase catalyses the oxidation and isomerisation of cholesterol to form cholest-4-en-3-one using FAD as a cofactor. The two forms of the enzyme found in Brevibacterium BCO1 and BCO2 do not show any structural or sequence homology, despite carrying out the same reaction. As a result their mechanisms are believed to be different. Study of the enzymes that degrade cholesterol is clearly of great relevance to medicine due to the role of the steroid in cardiovascular disease.

Defined by 4 residues: HIS:B-69 [auth B-121]GLU:B-259 [auth B-311]GLU:B-423 [auth B-475]ARG:B-425 [auth B-477]
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