5NQD

Arsenite oxidase AioAB from Rhizobium sp. str. NT-26 mutant AioBF108A

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d5nqdb_	All beta proteins	ISP domain	ISP domain	automated matches	automated matches	(Pseudorhizobium banfieldiae ) [TaxId: 1125847 ],	SCOPe (2.08)
H	d5nqdh_	All beta proteins	ISP domain	ISP domain	automated matches	automated matches	(Pseudorhizobium banfieldiae ) [TaxId: 1125847 ],	SCOPe (2.08)
D	d5nqdd_	All beta proteins	ISP domain	ISP domain	automated matches	automated matches	(Pseudorhizobium banfieldiae ) [TaxId: 1125847 ],	SCOPe (2.08)
F	d5nqdf_	All beta proteins	ISP domain	ISP domain	automated matches	automated matches	(Pseudorhizobium banfieldiae ) [TaxId: 1125847 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Formate dehydrogenase/DMSO reductase, domains 1-3	8099846	3001453	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	ADC-like	8101088	3001132	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Formate dehydrogenase/DMSO reductase, domains 1-3	8099846	3001453	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	ADC-like	8101088	3001132	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	ADC-like	8101088	3001132	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Formate dehydrogenase/DMSO reductase, domains 1-3	8099846	3001453	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	ADC-like	8101088	3001132	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	Formate dehydrogenase/DMSO reductase, domains 1-3	8099846	3001453	SCOP2B (2022-06-29)
B	SCOP2 Family	Rieske iron-sulfur protein (ISP)	8086779	4001667	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	ISP domain	8086780	3000233	SCOP2 (2022-06-29)
H	SCOP2B Superfamily	ISP domain	8086780	3000233	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	ISP domain	8086780	3000233	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	ISP domain	8086780	3000233	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Molydop_binding	e5nqdA2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: double psi	F: Molydop_binding	ECOD (1.6)
A	arsenite_ox_L	e5nqdA4	A: a+b two layers	X: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology)	H: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology)	T: Formate dehydrogenase/DMSO reductase, domain 1	F: arsenite_ox_L	ECOD (1.6)
A	Molybdopterin_2nd	e5nqdA1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Formate dehydrogenase/DMSO reductase, domains 2 and 3 (From Topology)	T: Formate dehydrogenase/DMSO reductase, domains 2 and 3	F: Molybdopterin_2nd	ECOD (1.6)
A	Molybdopterin_1st_1	e5nqdA3	A: a/b three-layered sandwiches	X: Rossmann-like	H: Formate dehydrogenase/DMSO reductase, domains 2 and 3 (From Topology)	T: Formate dehydrogenase/DMSO reductase, domains 2 and 3	F: Molybdopterin_1st_1	ECOD (1.6)
C	Molydop_binding	e5nqdC3	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: double psi	F: Molydop_binding	ECOD (1.6)
C	arsenite_ox_L	e5nqdC2	A: a+b two layers	X: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology)	H: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology)	T: Formate dehydrogenase/DMSO reductase, domain 1	F: arsenite_ox_L	ECOD (1.6)
C	Molybdopterin_2nd	e5nqdC4	A: a/b three-layered sandwiches	X: Rossmann-like	H: Formate dehydrogenase/DMSO reductase, domains 2 and 3 (From Topology)	T: Formate dehydrogenase/DMSO reductase, domains 2 and 3	F: Molybdopterin_2nd	ECOD (1.6)
C	Molybdopterin_1st_1	e5nqdC1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Formate dehydrogenase/DMSO reductase, domains 2 and 3 (From Topology)	T: Formate dehydrogenase/DMSO reductase, domains 2 and 3	F: Molybdopterin_1st_1	ECOD (1.6)
E	Molydop_binding	e5nqdE3	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: double psi	F: Molydop_binding	ECOD (1.6)
E	arsenite_ox_L	e5nqdE1	A: a+b two layers	X: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology)	H: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology)	T: Formate dehydrogenase/DMSO reductase, domain 1	F: arsenite_ox_L	ECOD (1.6)
E	Molybdopterin_2nd	e5nqdE2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Formate dehydrogenase/DMSO reductase, domains 2 and 3 (From Topology)	T: Formate dehydrogenase/DMSO reductase, domains 2 and 3	F: Molybdopterin_2nd	ECOD (1.6)
E	Molybdopterin_1st_1	e5nqdE4	A: a/b three-layered sandwiches	X: Rossmann-like	H: Formate dehydrogenase/DMSO reductase, domains 2 and 3 (From Topology)	T: Formate dehydrogenase/DMSO reductase, domains 2 and 3	F: Molybdopterin_1st_1	ECOD (1.6)
G	Molydop_binding	e5nqdG1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: double psi	F: Molydop_binding	ECOD (1.6)
G	arsenite_ox_L	e5nqdG3	A: a+b two layers	X: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology)	H: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology)	T: Formate dehydrogenase/DMSO reductase, domain 1	F: arsenite_ox_L	ECOD (1.6)
G	Molybdopterin_2nd	e5nqdG4	A: a/b three-layered sandwiches	X: Rossmann-like	H: Formate dehydrogenase/DMSO reductase, domains 2 and 3 (From Topology)	T: Formate dehydrogenase/DMSO reductase, domains 2 and 3	F: Molybdopterin_2nd	ECOD (1.6)
G	Molybdopterin_1st_1	e5nqdG2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Formate dehydrogenase/DMSO reductase, domains 2 and 3 (From Topology)	T: Formate dehydrogenase/DMSO reductase, domains 2 and 3	F: Molybdopterin_1st_1	ECOD (1.6)
B	arsenite_ox_S	e5nqdB2	A: beta sandwiches	X: ISP domain (From Topology)	H: ISP domain (From Topology)	T: ISP domain	F: arsenite_ox_S	ECOD (1.6)
B	Rieske_4	e5nqdB1	A: few secondary structure elements	X: Trm112p-like (From Topology)	H: Trm112p-like (From Topology)	T: Trm112p-like	F: Rieske_4	ECOD (1.6)
H	arsenite_ox_S	e5nqdH1	A: beta sandwiches	X: ISP domain (From Topology)	H: ISP domain (From Topology)	T: ISP domain	F: arsenite_ox_S	ECOD (1.6)
H	Rieske_4	e5nqdH2	A: few secondary structure elements	X: Trm112p-like (From Topology)	H: Trm112p-like (From Topology)	T: Trm112p-like	F: Rieske_4	ECOD (1.6)
D	arsenite_ox_S	e5nqdD1	A: beta sandwiches	X: ISP domain (From Topology)	H: ISP domain (From Topology)	T: ISP domain	F: arsenite_ox_S	ECOD (1.6)
D	Rieske_4	e5nqdD2	A: few secondary structure elements	X: Trm112p-like (From Topology)	H: Trm112p-like (From Topology)	T: Trm112p-like	F: Rieske_4	ECOD (1.6)
F	arsenite_ox_S	e5nqdF2	A: beta sandwiches	X: ISP domain (From Topology)	H: ISP domain (From Topology)	T: ISP domain	F: arsenite_ox_S	ECOD (1.6)
F	Rieske_4	e5nqdF1	A: few secondary structure elements	X: Trm112p-like (From Topology)	H: Trm112p-like (From Topology)	T: Trm112p-like	F: Rieske_4	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.200.200	Alpha Beta	2-Layer Sandwich	Phosphorylase Kinase	domain 1	CATH (4.3.0)
A	3.40.50.740	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
A	3.40.228.10	Alpha Beta	3-Layer(aba) Sandwich	Dimethylsulfoxide Reductase	domain 2	CATH (4.3.0)
A	2.40.40.20	Mainly Beta	Beta Barrel	Barwin-like endoglucanases		CATH (4.3.0)
C	3.30.200.200	Alpha Beta	2-Layer Sandwich	Phosphorylase Kinase	domain 1	CATH (4.3.0)
C	3.40.50.740	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
C	3.40.228.10	Alpha Beta	3-Layer(aba) Sandwich	Dimethylsulfoxide Reductase	domain 2	CATH (4.3.0)
C	2.40.40.20	Mainly Beta	Beta Barrel	Barwin-like endoglucanases		CATH (4.3.0)
E	3.30.200.200	Alpha Beta	2-Layer Sandwich	Phosphorylase Kinase	domain 1	CATH (4.3.0)
E	3.40.50.740	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
E	3.40.228.10	Alpha Beta	3-Layer(aba) Sandwich	Dimethylsulfoxide Reductase	domain 2	CATH (4.3.0)
E	2.40.40.20	Mainly Beta	Beta Barrel	Barwin-like endoglucanases		CATH (4.3.0)
G	3.30.200.200	Alpha Beta	2-Layer Sandwich	Phosphorylase Kinase	domain 1	CATH (4.3.0)
G	3.40.50.740	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
G	3.40.228.10	Alpha Beta	3-Layer(aba) Sandwich	Dimethylsulfoxide Reductase	domain 2	CATH (4.3.0)
G	2.40.40.20	Mainly Beta	Beta Barrel	Barwin-like endoglucanases		CATH (4.3.0)
B	2.102.10.10	Mainly Beta	3-layer Sandwich	Rieske Iron-sulfur Protein	Rieske [2Fe-2S] iron-sulphur domain	CATH (4.3.0)
H	2.102.10.10	Mainly Beta	3-layer Sandwich	Rieske Iron-sulfur Protein	Rieske [2Fe-2S] iron-sulphur domain	CATH (4.3.0)
D	2.102.10.10	Mainly Beta	3-layer Sandwich	Rieske Iron-sulfur Protein	Rieske [2Fe-2S] iron-sulphur domain	CATH (4.3.0)
F	2.102.10.10	Mainly Beta	3-layer Sandwich	Rieske Iron-sulfur Protein	Rieske [2Fe-2S] iron-sulphur domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, C, E, G	PF01568	Molydopterin dinucleotide binding domain (Molydop_binding)	Molydopterin dinucleotide binding domain	This 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 entir ...	This 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 subunit. The formylmethanofuran dehydrogenase catalyses the first step in methane formation from CO2 in methanogenic archaea and has a molybdopterin dinucleotide cofactor [1]. This domain corresponds to the C-terminal domain IV in dimethyl sulfoxide (DMSO)reductase which interacts with the 2-amino pyrimidone ring of both molybdopterin guanine dinucleotide molecules [2].	Domain
A, C, E, G	PF18465	Rieske 3Fe-4S (Rieske_3)	Rieske 3Fe-4S	This 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 ...	This 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 Gram-negative organisms. The large subunit of arsenite oxidase is similar to other members of the dimethylsulfoxide (DMSO) reductase family of molybdenum enzymes. The large subunit of arsenite oxidase is divided into four domains, with domain I binding the [3Fe-4S] cluster . Domain I, consists of three antiparallel beta sheets and six helices. The [3Fe-4S] cluster is coordinated by the motif Cys21-X2-Cys24-X3-Cys28 near the interface with domains III and IV. A large, flattened funnel-like cavity bounded by domains I, II, and III leads to the molybdenum center Pfam:PF00384 located near the center of the molecule [1].	Domain
A, C, E, G	PF00384	Molybdopterin oxidoreductase (Molybdopterin)	Molybdopterin oxidoreductase	-	Family
B, D, F, H	PF00355	Rieske [2Fe-2S] domain (Rieske)	Rieske [2Fe-2S] domain	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 ...	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

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C, E, G	AroA	oxidoreductase activity catalytic activity iron-sulfur cluster binding binding 3 iron, 4 sulfur cluster binding metal cluster binding small molecule binding organic cyclic compound binding molybdopterin cofactor binding cation binding ion binding metal ion binding	cellular respiration energy derivation by oxidation of organic compounds cellular metabolic process metabolic process cellular process generation of precursor metabolites and energy	protein-containing complex catalytic complex oxidoreductase complex
B, D, F, H	Arsenite oxidase small subunit AioB Rieske [2Fe-2S] cluster	oxidoreductase activity catalytic activity iron-sulfur cluster binding 2 iron, 2 sulfur cluster binding binding metal cluster binding small molecule binding cation binding ion binding metal ion binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C, E, G	IPR006657	Molybdopterin dinucleotide-binding domain	Domain
A, C, E, G	IPR006656	Molybdopterin oxidoreductase	Domain
A, C, E, G	IPR050123	Prokaryotic molybdopterin-containing oxidoreductase	Family
A, C, E, G	IPR014066	Arsenite oxidase subunit AioA/Iodate reductase subunit IdrA, large subunit	Family
A, C, E, G	IPR041632	Arsenite oxidase subunit AioA/Iodate reductase subunit IdrA, 3Fe-4S cluster	Domain
A, C, E, G	IPR009010	Aspartate decarboxylase-like domain superfamily	Homologous Superfamily
B, D, F, H	IPR017941	Rieske [2Fe-2S] iron-sulphur domain	Domain
B, D, F, H	IPR036922	Rieske [2Fe-2S] iron-sulphur domain superfamily	Homologous Superfamily
B, D, F, H	IPR006311	Twin-arginine translocation pathway, signal sequence	Conserved Site
B, D, F, H	IPR014067	Arsenite oxidase subunit AioB/Iodate reductase subunit IdrB, small subunit	Family