Annotations: 3HRD

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
D	d3hrdd2	All alpha proteins	CO dehydrogenase ISP C-domain like	CO dehydrogenase ISP C-domain like	automated matches	automated matches	(Eubacterium barkeri ) [TaxId: 1528 ],	SCOPe (2.08)
D	d3hrdd1	Alpha and beta proteins (a+b)	beta-Grasp (ubiquitin-like)	2Fe-2S ferredoxin-like	automated matches	automated matches	(Eubacterium barkeri ) [TaxId: 1528 ],	SCOPe (2.08)
D	d3hrdd3	Artifacts	Tags	Tags	Tags	C-terminal Tags	(Eubacterium barkeri ) [TaxId: 1528 ],	SCOPe (2.08)
H	d3hrdh2	All alpha proteins	CO dehydrogenase ISP C-domain like	CO dehydrogenase ISP C-domain like	automated matches	automated matches	(Eubacterium barkeri ) [TaxId: 1528 ],	SCOPe (2.08)
H	d3hrdh1	Alpha and beta proteins (a+b)	beta-Grasp (ubiquitin-like)	2Fe-2S ferredoxin-like	automated matches	automated matches	(Eubacterium barkeri ) [TaxId: 1528 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Ald_Xan_dh_C2	e3hrdA2	A: a+b two layers	X: MocoBD/DmpA-related (From Homology)	H: MocoBD/DmpA-related	T: Molybdenum cofactor-binding domain	F: Ald_Xan_dh_C2	ECOD (1.6)
A	Ald_Xan_dh_C	e3hrdA1	A: a+b complex topology	X: alpha/beta-Hammerhead/Barrel-sandwich hybrid	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: CO dehydrogenase molybdoprotein N-domain-like	F: Ald_Xan_dh_C	ECOD (1.6)
E	Ald_Xan_dh_C2	e3hrdE2	A: a+b two layers	X: MocoBD/DmpA-related (From Homology)	H: MocoBD/DmpA-related	T: Molybdenum cofactor-binding domain	F: Ald_Xan_dh_C2	ECOD (1.6)
E	Ald_Xan_dh_C	e3hrdE1	A: a+b complex topology	X: alpha/beta-Hammerhead/Barrel-sandwich hybrid	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: CO dehydrogenase molybdoprotein N-domain-like	F: Ald_Xan_dh_C	ECOD (1.6)
B	Ald_Xan_dh_C2	e3hrdB1	A: a+b two layers	X: MocoBD/DmpA-related (From Homology)	H: MocoBD/DmpA-related	T: Molybdenum cofactor-binding domain	F: Ald_Xan_dh_C2	ECOD (1.6)
F	Ald_Xan_dh_C2	e3hrdF1	A: a+b two layers	X: MocoBD/DmpA-related (From Homology)	H: MocoBD/DmpA-related	T: Molybdenum cofactor-binding domain	F: Ald_Xan_dh_C2	ECOD (1.6)
C	CO_deh_flav_C	e3hrdC2	A: a+b two layers	X: FAD-linked reductases, C-terminal domain-like	H: SufE/NifU (From Topology)	T: SufE/NifU	F: CO_deh_flav_C	ECOD (1.6)
C	FAD_binding_5	e3hrdC1	A: a+b complex topology	X: FAD-binding domain-like	H: FAD-binding domain (From Topology)	T: FAD-binding domain	F: FAD_binding_5	ECOD (1.6)
G	CO_deh_flav_C	e3hrdG1	A: a+b two layers	X: FAD-linked reductases, C-terminal domain-like	H: SufE/NifU (From Topology)	T: SufE/NifU	F: CO_deh_flav_C	ECOD (1.6)
G	FAD_binding_5	e3hrdG2	A: a+b complex topology	X: FAD-binding domain-like	H: FAD-binding domain (From Topology)	T: FAD-binding domain	F: FAD_binding_5	ECOD (1.6)
D	Fer2_2	e3hrdD4	A: alpha bundles	X: CO dehydrogenase ISP C-domain like (From Topology)	H: CO dehydrogenase ISP C-domain like (From Topology)	T: CO dehydrogenase ISP C-domain like	F: Fer2_2	ECOD (1.6)
D	Fer2	e3hrdD3	A: a+b two layers	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: Fer2	ECOD (1.6)
H	Fer2_2	e3hrdH4	A: alpha bundles	X: CO dehydrogenase ISP C-domain like (From Topology)	H: CO dehydrogenase ISP C-domain like (From Topology)	T: CO dehydrogenase ISP C-domain like	F: Fer2_2	ECOD (1.6)
H	Fer2	e3hrdH3	A: a+b two layers	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: Fer2	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.365.10	Alpha Beta	2-Layer Sandwich	Aldehyde Oxidoreductase	domain 4	CATH (4.3.0)
E	3.30.365.10	Alpha Beta	2-Layer Sandwich	Aldehyde Oxidoreductase	domain 4	CATH (4.3.0)
B	3.30.365.10	Alpha Beta	2-Layer Sandwich	Aldehyde Oxidoreductase	domain 4	CATH (4.3.0)
F	3.30.365.10	Alpha Beta	2-Layer Sandwich	Aldehyde Oxidoreductase	domain 4	CATH (4.3.0)
C	3.30.390.50	Alpha Beta	2-Layer Sandwich	Enolase-like	domain 1	CATH (4.3.0)
G	3.30.390.50	Alpha Beta	2-Layer Sandwich	Enolase-like	domain 1	CATH (4.3.0)
D	3.10.20.30	Alpha Beta	Roll	Ubiquitin-like (UB roll)	Beta-grasp domain	CATH (4.3.0)
D	1.10.150.120	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)
H	3.10.20.30	Alpha Beta	Roll	Ubiquitin-like (UB roll)	Beta-grasp domain	CATH (4.3.0)
H	1.10.150.120	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, E	PF01315	Aldehyde oxidase and xanthine dehydrogenase, a/b hammerhead domain (Ald_Xan_dh_C)	Aldehyde oxidase and xanthine dehydrogenase, a/b hammerhead domain	-	Domain
A, E	PF02738	Molybdopterin cofactor-binding domain (MoCoBD_1)	Molybdopterin cofactor-binding domain	-	Domain
B, F	PF20256	Molybdopterin cofactor-binding domain (MoCoBD_2)	Molybdopterin cofactor-binding domain	-	Domain
C, G	PF00941	FAD binding domain in molybdopterin dehydrogenase (FAD_binding_5)	FAD binding domain in molybdopterin dehydrogenase	-	Family
C, G	PF03450	CO dehydrogenase flavoprotein C-terminal domain (CO_deh_flav_C)	CO dehydrogenase flavoprotein C-terminal domain	-	Domain
D, H	PF01799	[2Fe-2S] binding domain (Fer2_2)	[2Fe-2S] binding domain	-	Domain
D, H	PF00111	2Fe-2S iron-sulfur cluster binding domain (Fer2)	2Fe-2S iron-sulfur cluster binding domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, E	Nicotinate dehydrogenase large molybdopterin subunit	oxidoreductase activity oxidoreductase activity, acting on CH or CH2 groups oxidoreductase activity, acting on CH or CH2 groups, NAD or NADP as acceptor catalytic activity nicotinate dehydrogenase activity cation binding transition metal ion binding iron ion binding ion binding binding metal ion binding small molecule binding	organonitrogen compound catabolic process organonitrogen compound metabolic process catabolic process oxoacid metabolic process cellular metabolic process carboxylic acid metabolic process alkaloid catabolic process alkaloid metabolic process organic acid metabolic process organic acid catabolic process cellular catabolic process monocarboxylic acid catabolic process carboxylic acid catabolic process pyridine-containing compound metabolic process organonitrogen compound catabolic process organonitrogen compound metabolic process catabolic process oxoacid metabolic process cellular metabolic process carboxylic acid metabolic process alkaloid catabolic process alkaloid metabolic process organic acid metabolic process organic acid catabolic process cellular catabolic process monocarboxylic acid catabolic process carboxylic acid catabolic process pyridine-containing compound metabolic process metabolic process small molecule metabolic process cellular process monocarboxylic acid metabolic process small molecule catabolic process nicotinate catabolic process nicotinate metabolic process pyridine-containing compound catabolic process	-
B, F	Nicotinate dehydrogenase medium molybdopterin subunit	oxidoreductase activity oxidoreductase activity, acting on CH or CH2 groups oxidoreductase activity, acting on CH or CH2 groups, NAD or NADP as acceptor catalytic activity nicotinate dehydrogenase activity cation binding ion binding binding metal ion binding small molecule binding	organonitrogen compound catabolic process organonitrogen compound metabolic process catabolic process oxoacid metabolic process cellular metabolic process carboxylic acid metabolic process alkaloid catabolic process alkaloid metabolic process organic acid metabolic process organic acid catabolic process cellular catabolic process monocarboxylic acid catabolic process carboxylic acid catabolic process pyridine-containing compound metabolic process organonitrogen compound catabolic process organonitrogen compound metabolic process catabolic process oxoacid metabolic process cellular metabolic process carboxylic acid metabolic process alkaloid catabolic process alkaloid metabolic process organic acid metabolic process organic acid catabolic process cellular catabolic process monocarboxylic acid catabolic process carboxylic acid catabolic process pyridine-containing compound metabolic process metabolic process small molecule metabolic process cellular process monocarboxylic acid metabolic process small molecule catabolic process nicotinate catabolic process nicotinate metabolic process pyridine-containing compound catabolic process	-
C, G	Nicotinate dehydrogenase FAD-subunit	oxidoreductase activity oxidoreductase activity, acting on CH or CH2 groups oxidoreductase activity, acting on CH or CH2 groups, NAD or NADP as acceptor catalytic activity nicotinate dehydrogenase activity FAD binding flavin adenine dinucleotide binding binding nucleoside phosphate binding ion binding organic cyclic compound binding anion binding nucleotide binding heterocyclic compound binding oxidoreductase activity oxidoreductase activity, acting on CH or CH2 groups oxidoreductase activity, acting on CH or CH2 groups, NAD or NADP as acceptor catalytic activity nicotinate dehydrogenase activity FAD binding flavin adenine dinucleotide binding binding nucleoside phosphate binding ion binding organic cyclic compound binding anion binding nucleotide binding heterocyclic compound binding small molecule binding	organonitrogen compound catabolic process organonitrogen compound metabolic process catabolic process oxoacid metabolic process cellular metabolic process carboxylic acid metabolic process alkaloid catabolic process alkaloid metabolic process organic acid metabolic process organic acid catabolic process cellular catabolic process monocarboxylic acid catabolic process carboxylic acid catabolic process pyridine-containing compound metabolic process organonitrogen compound catabolic process organonitrogen compound metabolic process catabolic process oxoacid metabolic process cellular metabolic process carboxylic acid metabolic process alkaloid catabolic process alkaloid metabolic process organic acid metabolic process organic acid catabolic process cellular catabolic process monocarboxylic acid catabolic process carboxylic acid catabolic process pyridine-containing compound metabolic process metabolic process small molecule metabolic process cellular process monocarboxylic acid metabolic process small molecule catabolic process nicotinate catabolic process nicotinate metabolic process pyridine-containing compound catabolic process	-
D, H	Nicotinate dehydrogenase small FeS subunit	iron-sulfur cluster binding 2 iron, 2 sulfur cluster binding binding metal cluster binding small molecule binding oxidoreductase activity oxidoreductase activity, acting on CH or CH2 groups oxidoreductase activity, acting on CH or CH2 groups, NAD or NADP as acceptor catalytic activity nicotinate dehydrogenase activity nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding iron-sulfur cluster binding 2 iron, 2 sulfur cluster binding binding metal cluster binding small molecule binding oxidoreductase activity oxidoreductase activity, acting on CH or CH2 groups oxidoreductase activity, acting on CH or CH2 groups, NAD or NADP as acceptor catalytic activity nicotinate dehydrogenase activity nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding cation binding ion binding metal ion binding	organonitrogen compound catabolic process organonitrogen compound metabolic process catabolic process oxoacid metabolic process cellular metabolic process carboxylic acid metabolic process alkaloid catabolic process alkaloid metabolic process organic acid metabolic process organic acid catabolic process cellular catabolic process monocarboxylic acid catabolic process carboxylic acid catabolic process pyridine-containing compound metabolic process organonitrogen compound catabolic process organonitrogen compound metabolic process catabolic process oxoacid metabolic process cellular metabolic process carboxylic acid metabolic process alkaloid catabolic process alkaloid metabolic process organic acid metabolic process organic acid catabolic process cellular catabolic process monocarboxylic acid catabolic process carboxylic acid catabolic process pyridine-containing compound metabolic process metabolic process small molecule metabolic process cellular process monocarboxylic acid metabolic process small molecule catabolic process nicotinate catabolic process nicotinate metabolic process pyridine-containing compound catabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, E	IPR000674	Aldehyde oxidase/xanthine dehydrogenase, a/b hammerhead	Domain
A, E	IPR016208	Aldehyde oxidase/xanthine dehydrogenase-like	Family
A, E	IPR036856	Aldehyde oxidase/xanthine dehydrogenase, a/b hammerhead superfamily	Homologous Superfamily
A, E	IPR037165	Aldehyde oxidase/xanthine dehydrogenase, molybdopterin binding domain superfamily	Homologous Superfamily
A, E	IPR008274	Aldehyde oxidase/xanthine dehydrogenase, first molybdopterin binding domain	Domain
B, F	IPR052516	Nicotinate and N-heterocyclic Hydroxylase	Family
B, F	IPR046867	Aldehyde oxidase/xanthine dehydrogenase, second molybdopterin binding domain	Domain
B, F	IPR037165	Aldehyde oxidase/xanthine dehydrogenase, molybdopterin binding domain superfamily	Homologous Superfamily
C, G	IPR016167	FAD-binding, type PCMH, subdomain 1	Homologous Superfamily
C, G	IPR036683	CO dehydrogenase flavoprotein, C-terminal domain superfamily	Homologous Superfamily
C, G	IPR051312	Diverse Substrate Oxidoreductases	Family
C, G	IPR036318	FAD-binding, type PCMH-like superfamily	Homologous Superfamily
C, G	IPR016169	FAD-binding, type PCMH, subdomain 2	Homologous Superfamily
C, G	IPR016166	FAD-binding domain, PCMH-type	Domain
C, G	IPR005107	CO dehydrogenase flavoprotein, C-terminal	Domain
C, G	IPR002346	Molybdopterin dehydrogenase, FAD-binding	Domain
D, H	IPR002888	[2Fe-2S]-binding	Domain
D, H	IPR036010	2Fe-2S ferredoxin-like superfamily	Homologous Superfamily
D, H	IPR001041	2Fe-2S ferredoxin-type iron-sulfur binding domain	Domain
D, H	IPR036884	[2Fe-2S]-binding domain superfamily	Homologous Superfamily
D, H	IPR051452	Diverse Oxidoreductases	Family
D, H	IPR012675	Beta-grasp domain superfamily	Homologous Superfamily
D, H	IPR006058	2Fe-2S ferredoxin, iron-sulphur binding site	Binding Site