4QCK

Crystal structure of 3-ketosteroid-9-alpha-hydroxylase (KshA) from M. tuberculosis in complex with 4-androstene-3,17-dione


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
APF00355e4qckA3 A: beta sandwichesX: ISP domain (From Topology)H: ISP domain (From Topology)T: ISP domainF: PF00355ECOD (1.6)
APF19298e4qckA2 A: a+b two layersX: TBP-likeH: Bet v1-like (From Topology)T: Bet v1-likeF: PF19298ECOD (1.6)
APF00355e4qckA1 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: PF00355ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A2.102.10.10 Mainly Beta 3-layer Sandwich Rieske Iron-sulfur Protein Rieske [2Fe-2S] iron-sulphur domainCATH (4.3.0)
A3.90.380.10 Alpha Beta Alpha-Beta Complex Naphthalene 1,2-dioxygenase Alpha Subunit Chain A, domain 1CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF192983-Ketosteroid 9alpha-hydroxylase C-terminal domain (KshA_C)3-Ketosteroid 9alpha-hydroxylase C-terminal domainKshAB is a complex of KshA and KshB that catalyses the 3-Ketosteroid 9alpha-hydroxylase reaction. This entry represents the C-terminal domain catalytic domain of KshA [1,2]. This domain The catalytic domain shares the TBP-like fold found in other Rie ...KshAB is a complex of KshA and KshB that catalyses the 3-Ketosteroid 9alpha-hydroxylase reaction. This entry represents the C-terminal domain catalytic domain of KshA [1,2]. This domain The catalytic domain shares the TBP-like fold found in other Rieske oxygenases.
Domain
PF00355Rieske [2Fe-2S] domain (Rieske)Rieske [2Fe-2S] domainThe rieske domain has a [2Fe-2S] centre. Two conserved cysteines coordinate one Fe ion, while the other Fe ion is coordinated by two conserved histidines. In hyperthermophilic archaea there is a SKTPCX(2-3)C motif at the C-terminus. The cysteines in ...The rieske domain has a [2Fe-2S] centre. Two conserved cysteines coordinate one Fe ion, while the other Fe ion is coordinated by two conserved histidines. In hyperthermophilic archaea there is a SKTPCX(2-3)C motif at the C-terminus. The cysteines in this motif form a disulphide bridge, which stabilises the protein [4].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
3-ketosteroid-9-alpha-monooxygenase oxygenase subunit