Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Ad1g8ka1 All beta proteins Double psi beta-barrel ADC-like Formate dehydrogenase/DMSO reductase, C-terminal domain Arsenite oxidase large subunit (Alcaligenes faecalis ) [TaxId: 511 ], SCOPe (2.08)
Ad1g8ka2 Alpha and beta proteins (a/b) Formate dehydrogenase/DMSO reductase, domains 1-3 Formate dehydrogenase/DMSO reductase, domains 1-3 Formate dehydrogenase/DMSO reductase, domains 1-3 Arsenite oxidase large subunit (Alcaligenes faecalis ) [TaxId: 511 ], SCOPe (2.08)
Cd1g8kc1 All beta proteins Double psi beta-barrel ADC-like Formate dehydrogenase/DMSO reductase, C-terminal domain Arsenite oxidase large subunit (Alcaligenes faecalis ) [TaxId: 511 ], SCOPe (2.08)
Cd1g8kc2 Alpha and beta proteins (a/b) Formate dehydrogenase/DMSO reductase, domains 1-3 Formate dehydrogenase/DMSO reductase, domains 1-3 Formate dehydrogenase/DMSO reductase, domains 1-3 Arsenite oxidase large subunit (Alcaligenes faecalis ) [TaxId: 511 ], SCOPe (2.08)
Ed1g8ke1 All beta proteins Double psi beta-barrel ADC-like Formate dehydrogenase/DMSO reductase, C-terminal domain Arsenite oxidase large subunit (Alcaligenes faecalis ) [TaxId: 511 ], SCOPe (2.08)
Ed1g8ke2 Alpha and beta proteins (a/b) Formate dehydrogenase/DMSO reductase, domains 1-3 Formate dehydrogenase/DMSO reductase, domains 1-3 Formate dehydrogenase/DMSO reductase, domains 1-3 Arsenite oxidase large subunit (Alcaligenes faecalis ) [TaxId: 511 ], SCOPe (2.08)
Gd1g8kg1 All beta proteins Double psi beta-barrel ADC-like Formate dehydrogenase/DMSO reductase, C-terminal domain Arsenite oxidase large subunit (Alcaligenes faecalis ) [TaxId: 511 ], SCOPe (2.08)
Gd1g8kg2 Alpha and beta proteins (a/b) Formate dehydrogenase/DMSO reductase, domains 1-3 Formate dehydrogenase/DMSO reductase, domains 1-3 Formate dehydrogenase/DMSO reductase, domains 1-3 Arsenite oxidase large subunit (Alcaligenes faecalis ) [TaxId: 511 ], SCOPe (2.08)
Bd1g8kb_ All beta proteins ISP domain ISP domain Rieske iron-sulfur protein (ISP) Arsenite oxidase Rieske subunit (Alcaligenes faecalis ) [TaxId: 511 ], SCOPe (2.08)
Dd1g8kd_ All beta proteins ISP domain ISP domain Rieske iron-sulfur protein (ISP) Arsenite oxidase Rieske subunit (Alcaligenes faecalis ) [TaxId: 511 ], SCOPe (2.08)
Fd1g8kf_ All beta proteins ISP domain ISP domain Rieske iron-sulfur protein (ISP) Arsenite oxidase Rieske subunit (Alcaligenes faecalis ) [TaxId: 511 ], SCOPe (2.08)
Hd1g8kh_ All beta proteins ISP domain ISP domain Rieske iron-sulfur protein (ISP) Arsenite oxidase Rieske subunit (Alcaligenes faecalis ) [TaxId: 511 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2 FamilyFormate dehydrogenase/DMSO reductase, domains 1-3 8020632 4000801 SCOP2 (2022-06-29)
ASCOP2 FamilyFormate dehydrogenase/DMSO reductase, C-terminal domain 8030139 4002360 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyFormate dehydrogenase/DMSO reductase, domains 1-3 8033012 3001453 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyADC-like 8042518 3001132 SCOP2 (2022-06-29)
CSCOP2B SuperfamilyFormate dehydrogenase/DMSO reductase, domains 1-3 8033012 3001453 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyADC-like 8042518 3001132 SCOP2B (2022-06-29)
ESCOP2B SuperfamilyFormate dehydrogenase/DMSO reductase, domains 1-3 8033012 3001453 SCOP2B (2022-06-29)
ESCOP2B SuperfamilyADC-like 8042518 3001132 SCOP2B (2022-06-29)
GSCOP2B SuperfamilyFormate dehydrogenase/DMSO reductase, domains 1-3 8033012 3001453 SCOP2B (2022-06-29)
GSCOP2B SuperfamilyADC-like 8042518 3001132 SCOP2B (2022-06-29)
BSCOP2 FamilyRieske iron-sulfur protein (ISP) 8029170 4001667 SCOP2 (2022-06-29)
BSCOP2 SuperfamilyISP domain 8041549 3000233 SCOP2 (2022-06-29)
DSCOP2B SuperfamilyISP domain 8041549 3000233 SCOP2B (2022-06-29)
FSCOP2B SuperfamilyISP domain 8041549 3000233 SCOP2B (2022-06-29)
HSCOP2B SuperfamilyISP domain 8041549 3000233 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AMolydop_bindinge1g8kA1 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: double psiF: Molydop_bindingECOD (1.6)
AMolybdop_Fe4S4,arsenite_ox_Le1g8kA2 A: a+b two layersX: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology)H: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology)T: Formate dehydrogenase/DMSO reductase, domain 1F: Molybdop_Fe4S4,arsenite_ox_LECOD (1.6)
AMolybdopterin_2nde1g8kA3 A: a/b three-layered sandwichesX: Rossmann-likeH: Formate dehydrogenase/DMSO reductase, domains 2 and 3 (From Topology)T: Formate dehydrogenase/DMSO reductase, domains 2 and 3F: Molybdopterin_2ndECOD (1.6)
AMolybdopterin_1st_1e1g8kA4 A: a/b three-layered sandwichesX: Rossmann-likeH: Formate dehydrogenase/DMSO reductase, domains 2 and 3 (From Topology)T: Formate dehydrogenase/DMSO reductase, domains 2 and 3F: Molybdopterin_1st_1ECOD (1.6)
CMolydop_bindinge1g8kC1 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: double psiF: Molydop_bindingECOD (1.6)
CMolybdop_Fe4S4,arsenite_ox_Le1g8kC4 A: a+b two layersX: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology)H: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology)T: Formate dehydrogenase/DMSO reductase, domain 1F: Molybdop_Fe4S4,arsenite_ox_LECOD (1.6)
CMolybdopterin_2nde1g8kC2 A: a/b three-layered sandwichesX: Rossmann-likeH: Formate dehydrogenase/DMSO reductase, domains 2 and 3 (From Topology)T: Formate dehydrogenase/DMSO reductase, domains 2 and 3F: Molybdopterin_2ndECOD (1.6)
CMolybdopterin_1st_1e1g8kC3 A: a/b three-layered sandwichesX: Rossmann-likeH: Formate dehydrogenase/DMSO reductase, domains 2 and 3 (From Topology)T: Formate dehydrogenase/DMSO reductase, domains 2 and 3F: Molybdopterin_1st_1ECOD (1.6)
EMolydop_bindinge1g8kE1 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: double psiF: Molydop_bindingECOD (1.6)
EMolybdop_Fe4S4,arsenite_ox_Le1g8kE4 A: a+b two layersX: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology)H: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology)T: Formate dehydrogenase/DMSO reductase, domain 1F: Molybdop_Fe4S4,arsenite_ox_LECOD (1.6)
EMolybdopterin_2nde1g8kE2 A: a/b three-layered sandwichesX: Rossmann-likeH: Formate dehydrogenase/DMSO reductase, domains 2 and 3 (From Topology)T: Formate dehydrogenase/DMSO reductase, domains 2 and 3F: Molybdopterin_2ndECOD (1.6)
EMolybdopterin_1st_1e1g8kE3 A: a/b three-layered sandwichesX: Rossmann-likeH: Formate dehydrogenase/DMSO reductase, domains 2 and 3 (From Topology)T: Formate dehydrogenase/DMSO reductase, domains 2 and 3F: Molybdopterin_1st_1ECOD (1.6)
GMolydop_bindinge1g8kG1 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: double psiF: Molydop_bindingECOD (1.6)
GMolybdop_Fe4S4,arsenite_ox_Le1g8kG4 A: a+b two layersX: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology)H: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology)T: Formate dehydrogenase/DMSO reductase, domain 1F: Molybdop_Fe4S4,arsenite_ox_LECOD (1.6)
GMolybdopterin_2nde1g8kG2 A: a/b three-layered sandwichesX: Rossmann-likeH: Formate dehydrogenase/DMSO reductase, domains 2 and 3 (From Topology)T: Formate dehydrogenase/DMSO reductase, domains 2 and 3F: Molybdopterin_2ndECOD (1.6)
GMolybdopterin_1st_1e1g8kG3 A: a/b three-layered sandwichesX: Rossmann-likeH: Formate dehydrogenase/DMSO reductase, domains 2 and 3 (From Topology)T: Formate dehydrogenase/DMSO reductase, domains 2 and 3F: Molybdopterin_1st_1ECOD (1.6)
Barsenite_ox_Se1g8kB1 A: beta sandwichesX: ISP domain (From Topology)H: ISP domain (From Topology)T: ISP domainF: arsenite_ox_SECOD (1.6)
BRieske_4e1g8kB2 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: Rieske_4ECOD (1.6)
Darsenite_ox_Se1g8kD1 A: beta sandwichesX: ISP domain (From Topology)H: ISP domain (From Topology)T: ISP domainF: arsenite_ox_SECOD (1.6)
DRieske_4e1g8kD2 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: Rieske_4ECOD (1.6)
Farsenite_ox_Se1g8kF1 A: beta sandwichesX: ISP domain (From Topology)H: ISP domain (From Topology)T: ISP domainF: arsenite_ox_SECOD (1.6)
FRieske_4e1g8kF2 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: Rieske_4ECOD (1.6)
Harsenite_ox_Se1g8kH1 A: beta sandwichesX: ISP domain (From Topology)H: ISP domain (From Topology)T: ISP domainF: arsenite_ox_SECOD (1.6)
HRieske_4e1g8kH2 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: Rieske_4ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A3.30.200.200 Alpha Beta 2-Layer Sandwich Phosphorylase Kinase domain 1CATH (4.3.0)
A3.40.50.740 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold CATH (4.3.0)
A3.40.228.10 Alpha Beta 3-Layer(aba) Sandwich Dimethylsulfoxide Reductase domain 2CATH (4.3.0)
A2.40.40.20 Mainly Beta Beta Barrel Barwin-like endoglucanases CATH (4.3.0)
C2.60.40.4210 Mainly Beta Sandwich Immunoglobulin-like CATH (4.3.0)
C3.40.50.740 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold CATH (4.3.0)
C3.40.228.10 Alpha Beta 3-Layer(aba) Sandwich Dimethylsulfoxide Reductase domain 2CATH (4.3.0)
C2.40.40.20 Mainly Beta Beta Barrel Barwin-like endoglucanases CATH (4.3.0)
E3.30.200.200 Alpha Beta 2-Layer Sandwich Phosphorylase Kinase domain 1CATH (4.3.0)
E3.40.50.740 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold CATH (4.3.0)
E3.40.228.10 Alpha Beta 3-Layer(aba) Sandwich Dimethylsulfoxide Reductase domain 2CATH (4.3.0)
E2.40.40.20 Mainly Beta Beta Barrel Barwin-like endoglucanases CATH (4.3.0)
G3.30.200.200 Alpha Beta 2-Layer Sandwich Phosphorylase Kinase domain 1CATH (4.3.0)
G3.40.50.740 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold CATH (4.3.0)
G3.40.228.10 Alpha Beta 3-Layer(aba) Sandwich Dimethylsulfoxide Reductase domain 2CATH (4.3.0)
G2.40.40.20 Mainly Beta Beta Barrel Barwin-like endoglucanases CATH (4.3.0)
B2.102.10.10 Mainly Beta 3-layer Sandwich Rieske Iron-sulfur Protein Rieske [2Fe-2S] iron-sulphur domainCATH (4.3.0)
D2.102.10.10 Mainly Beta 3-layer Sandwich Rieske Iron-sulfur Protein Rieske [2Fe-2S] iron-sulphur domainCATH (4.3.0)
F2.102.10.10 Mainly Beta 3-layer Sandwich Rieske Iron-sulfur Protein Rieske [2Fe-2S] iron-sulphur domainCATH (4.3.0)
H2.102.10.10 Mainly Beta 3-layer Sandwich Rieske Iron-sulfur Protein Rieske [2Fe-2S] iron-sulphur domainCATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, C, E, G
PF01568Molydopterin dinucleotide binding domain (Molydop_binding)Molydopterin dinucleotide binding domainThis domain is found in various molybdopterin - containing oxidoreductases and tungsten formylmethanofuran dehydrogenase subunit d (FwdD) and molybdenum formylmethanofuran dehydrogenase subunit (FmdD); where the domain constitutes almost the entire s ...Domain
A, C, E, G
PF18465Rieske 3Fe-4S (Rieske_3)Rieske 3Fe-4SThis domain is comprised of the iron-sulphur cluster and Rieske subunit found in the large subunit of arsenite oxidase. Arsenite oxidase is a 100 kDa molybdenum- and iron-sulfur-containing protein located on the outer surface of the inner membrane of ...Domain
A, C, E, G
PF00384Molybdopterin oxidoreductase (Molybdopterin)Molybdopterin oxidoreductaseDomain
B, D, F, H
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 ...Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, C, E, G
ARSENITE OXIDASE
B, D, F, H
ARSENITE OXIDASE -

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

ChainsEnzyme NameDescriptionCatalytic Residues
E, F
arsenite oxidase  M-CSA #144

Arsenite oxidase oxidises arsenite (As(III)O33-)to the less toxic arsenate (As(V)O43-). The electrons produced are transferred towards the soluble periplasmic electron carriers cytochrome c and/or amicyanin. Arsenite oxidase is a heterodimeric enzyme containing a large and a small subunit. The large catalytic subunit harbours the molybdopterin cofactor (comprising two molybdopterin guanosine dinucleotide cofactors bound to molybdenum), and a [3Fe-4S] cluster; the small subunit belongs to the structural class of the Rieske proteins and contains a Rieske-type [2Fe-2S] clusters.

Defined by 6 residues: CYS:E-24SER:E-98SER:E-99SER:E-238HIS:F-62HIS:F-81
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