3IAM | pdb_00003iam

Crystal structure of the hydrophilic domain of respiratory complex I from Thermus thermophilus, reduced, 2 mol/ASU, with bound NADH

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
Membrane Protein Annotation: mpstruc

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth 1]	d3iam13	All alpha proteins	Bromodomain-like	Nqo1C-terminal domain-like	automated matches	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
A [auth 1]	d3iam11	Alpha and beta proteins (a/b)	Nqo1 FMN-binding domain-like	Nqo1 FMN-binding domain-like	Nqo1 FMN-binding domain-like	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
A [auth 1]	d3iam12	Alpha and beta proteins (a+b)	beta-Grasp (ubiquitin-like)	Nqo1 middle domain-like	automated matches	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
I [auth A]	d3iama3	All alpha proteins	Bromodomain-like	Nqo1C-terminal domain-like	automated matches	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
I [auth A]	d3iama1	Alpha and beta proteins (a/b)	Nqo1 FMN-binding domain-like	Nqo1 FMN-binding domain-like	Nqo1 FMN-binding domain-like	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
I [auth A]	d3iama2	Alpha and beta proteins (a+b)	beta-Grasp (ubiquitin-like)	Nqo1 middle domain-like	automated matches	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
B [auth 2]	d3iam2_	Alpha and beta proteins (a/b)	Thioredoxin fold	Thioredoxin-like	NQO2-like	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
J [auth B]	d3iamb_	Alpha and beta proteins (a/b)	Thioredoxin fold	Thioredoxin-like	NQO2-like	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
C [auth 3]	d3iam34	All beta proteins	Double psi beta-barrel	ADC-like	automated matches	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
C [auth 3]	d3iam33	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	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
C [auth 3]	d3iam31	Alpha and beta proteins (a+b)	beta-Grasp (ubiquitin-like)	2Fe-2S ferredoxin-like	automated matches	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
C [auth 3]	d3iam32	Alpha and beta proteins (a+b)	Ferredoxin-like	4Fe-4S ferredoxins	automated matches	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
K [auth C]	d3iamc4	All beta proteins	Double psi beta-barrel	ADC-like	automated matches	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
K [auth C]	d3iamc3	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	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
K [auth C]	d3iamc1	Alpha and beta proteins (a+b)	beta-Grasp (ubiquitin-like)	2Fe-2S ferredoxin-like	automated matches	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
K [auth C]	d3iamc2	Alpha and beta proteins (a+b)	Ferredoxin-like	4Fe-4S ferredoxins	automated matches	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
D [auth 4]	d3iam4_	Multi-domain proteins (alpha and beta)	HydB/Nqo4-like	HydB/Nqo4-like	Nqo4-like	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
L [auth D]	d3iamd_	Multi-domain proteins (alpha and beta)	HydB/Nqo4-like	HydB/Nqo4-like	Nqo4-like	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
E [auth 5]	d3iam5_	Alpha and beta proteins (a+b)	Nqo5-like	Nqo5-like	Nqo5-like	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
M [auth E]	d3iame_	Alpha and beta proteins (a+b)	Nqo5-like	Nqo5-like	Nqo5-like	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
F [auth 6]	d3iam6_	Multi-domain proteins (alpha and beta)	HydA/Nqo6-like	HydA/Nqo6-like	Nq06-like	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
N [auth F]	d3iamf_	Multi-domain proteins (alpha and beta)	HydA/Nqo6-like	HydA/Nqo6-like	Nq06-like	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
G [auth 9]	d3iam9_	Alpha and beta proteins (a+b)	Ferredoxin-like	4Fe-4S ferredoxins	Ferredoxin domains from multidomain proteins	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
O [auth G]	d3iamg_	Alpha and beta proteins (a+b)	Ferredoxin-like	4Fe-4S ferredoxins	Ferredoxin domains from multidomain proteins	automated matches	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
H [auth 7]	d3iam7_	Alpha and beta proteins (a+b)	N domain of copper amine oxidase-like	Frataxin/Nqo15-like	Nqo15-like	NADH-quinone oxidoreductase subunit 15, Nqo15	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)
P [auth H]	d3iamh_	Alpha and beta proteins (a+b)	N domain of copper amine oxidase-like	Frataxin/Nqo15-like	Nqo15-like	NADH-quinone oxidoreductase subunit 15, Nqo15	(Thermus thermophilus HB8 ) [TaxId: 300852 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth 1]	SCOP2B Superfamily	Nqo1 FMN-binding domain-like	8041341	3001265	SCOP2B (2022-06-29)
A [auth 1]	SCOP2B Superfamily	Nqo1 middle domain-like	8041342	3000871	SCOP2B (2022-06-29)
A [auth 1]	SCOP2B Superfamily	Nqo1C-terminal domain-like	8041340	3001171	SCOP2B (2022-06-29)
I [auth A]	SCOP2B Superfamily	Nqo1 FMN-binding domain-like	8041341	3001265	SCOP2B (2022-06-29)
I [auth A]	SCOP2B Superfamily	Nqo1C-terminal domain-like	8041340	3001171	SCOP2B (2022-06-29)
I [auth A]	SCOP2B Superfamily	Nqo1 middle domain-like	8041342	3000871	SCOP2B (2022-06-29)
B [auth 2]	SCOP2B Superfamily	Thioredoxin-like	8041344	3000031	SCOP2B (2022-06-29)
J [auth B]	SCOP2B Superfamily	Thioredoxin-like	8041344	3000031	SCOP2B (2022-06-29)
C [auth 3]	SCOP2B Superfamily	2Fe-2S ferredoxin-like	8041347	3000113	SCOP2B (2022-06-29)
C [auth 3]	SCOP2B Superfamily	4Fe-4S ferredoxins	8041348	3000020	SCOP2B (2022-06-29)
C [auth 3]	SCOP2B Superfamily	Formate dehydrogenase/DMSO reductase, domains 1-3	8041346	3001453	SCOP2B (2022-06-29)
C [auth 3]	SCOP2B Superfamily	ADC-like	8041345	3001132	SCOP2B (2022-06-29)
K [auth C]	SCOP2B Superfamily	4Fe-4S ferredoxins	8041348	3000020	SCOP2B (2022-06-29)
K [auth C]	SCOP2B Superfamily	ADC-like	8041345	3001132	SCOP2B (2022-06-29)
K [auth C]	SCOP2B Superfamily	Formate dehydrogenase/DMSO reductase, domains 1-3	8041346	3001453	SCOP2B (2022-06-29)
K [auth C]	SCOP2B Superfamily	2Fe-2S ferredoxin-like	8041347	3000113	SCOP2B (2022-06-29)
D [auth 4]	SCOP2B Superfamily	HydB/Nqo4-like	8041349	3001849	SCOP2B (2022-06-29)
L [auth D]	SCOP2B Superfamily	HydB/Nqo4-like	8041349	3001849	SCOP2B (2022-06-29)
E [auth 5]	SCOP2B Superfamily	Nqo5-like	8041351	3001071	SCOP2B (2022-06-29)
M [auth E]	SCOP2B Superfamily	Nqo5-like	8041351	3001071	SCOP2B (2022-06-29)
F [auth 6]	SCOP2B Superfamily	Nqo6/HydA N-terminal domain-like	8041352	3002291	SCOP2B (2022-06-29)
N [auth F]	SCOP2B Superfamily	Nqo6/HydA N-terminal domain-like	8041352	3002291	SCOP2B (2022-06-29)
G [auth 9]	SCOP2B Superfamily	4Fe-4S ferredoxins	8041354	3000020	SCOP2B (2022-06-29)
O [auth G]	SCOP2B Superfamily	4Fe-4S ferredoxins	8041354	3000020	SCOP2B (2022-06-29)
H [auth 7]	SCOP2B Superfamily	Frataxin/Nqo15-like	8041353	3001840	SCOP2B (2022-06-29)
P [auth H]	SCOP2B Superfamily	Frataxin/Nqo15-like	8041353	3001840	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth 1]	e3iam11	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: HTH_3	F:	ECOD (20:10:01)
I [auth A]	e3iamA1	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: HTH_3	F:	ECOD (20:10:01)
B [auth 2]	e3iam21	A: PBZ domain	X: PBZ domain	H: PBZ domain	T: LYTB	F:	ECOD (20:10:01)
J [auth B]	e3iamB1	A: jelly-roll	X: Double-stranded beta-helix	H: Double-stranded beta-helix	T: Histone	F:	ECOD (20:10:01)
C [auth 3]	e3iam34	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: HTH_3	F:	ECOD (20:10:01)
C [auth 3]	e3iam37	A: Subtilisin-like	X: Subtilisin-like	H: Subtilisin-like	T: Chorismate_bind	F:	ECOD (20:10:01)
C [auth 3]	e3iam35	A: OB-fold	X: Rubredoxin-related	H: Rubredoxin-related	T: GFO_IDH_MocA	F:	ECOD (20:10:01)
K [auth C]	e3iamC4	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: HTH_3	F:	ECOD (20:10:01)
K [auth C]	e3iamC7	A: Subtilisin-like	X: Subtilisin-like	H: Subtilisin-like	T: Chorismate_bind	F:	ECOD (20:10:01)
K [auth C]	e3iamC5	A: OB-fold	X: Rubredoxin-related	H: Rubredoxin-related	T: GFO_IDH_MocA	F:	ECOD (20:10:01)
D [auth 4]	e3iam44	A: DEATH domain	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T:	F:	ECOD (20:10:01)
L [auth D]	e3iamD4	A: DEATH domain	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T:	F:	ECOD (20:10:01)
E [auth 5]	e3iam51	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: HTH_3	F:	ECOD (20:10:01)
M [auth E]	e3iamE1	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: HTH_3	F:	ECOD (20:10:01)
F [auth 6]	e3iam61	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: HTH_3	F:	ECOD (20:10:01)
N [auth F]	e3iamF1	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: HTH_3	F:	ECOD (20:10:01)
G [auth 9]	e3iam91	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: HTH_3	F:	ECOD (20:10:01)
O [auth G]	e3iamG1	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: HTH_3	F:	ECOD (20:10:01)
H [auth 7]	e3iam71	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: HTH_3	F:	ECOD (20:10:01)
P [auth H]	e3iamH1	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: HTH_3	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth 1]	6.10.250.1450	Special	Helix non-globular	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
A [auth 1]	3.40.50.11540	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NADH-ubiquinone oxidoreductase 51kDa subunit	CATH (4.3.0)
A [auth 1]	3.10.20.600	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (4.3.0)
A [auth 1]	1.20.1440.230	Mainly Alpha	Up-down Bundle	de novo design (two linked rop proteins)	NADH-ubiquinone oxidoreductase 51kDa subunit, iron-sulphur binding domain	CATH (4.3.0)
I [auth A]	6.10.250.1450	Special	Helix non-globular	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
I [auth A]	3.40.50.11540	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NADH-ubiquinone oxidoreductase 51kDa subunit	CATH (4.3.0)
I [auth A]	3.10.20.600	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (4.3.0)
I [auth A]	1.20.1440.230	Mainly Alpha	Up-down Bundle	de novo design (two linked rop proteins)	NADH-ubiquinone oxidoreductase 51kDa subunit, iron-sulphur binding domain	CATH (4.3.0)
B [auth 2]	1.10.10.1590	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	NADH-quinone oxidoreductase subunit E	CATH (4.3.0)
B [auth 2]	3.40.30.10	Alpha Beta	3-Layer(aba) Sandwich	Glutaredoxin	Glutaredoxin	CATH (4.3.0)
J [auth B]	1.10.10.1590	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	NADH-quinone oxidoreductase subunit E	CATH (4.3.0)
J [auth B]	3.40.30.10	Alpha Beta	3-Layer(aba) Sandwich	Glutaredoxin	Glutaredoxin	CATH (4.3.0)
D [auth 4]	1.10.645.10	Mainly Alpha	Orthogonal Bundle	Cytochrome-c3 Hydrogenase	chain B	CATH (4.3.0)
L [auth D]	1.10.645.10	Mainly Alpha	Orthogonal Bundle	Cytochrome-c3 Hydrogenase	chain B	CATH (4.3.0)
F [auth 6]	3.40.50.12280	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
N [auth F]	3.40.50.12280	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
G [auth 9]	3.30.70.3270	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
O [auth G]	3.30.70.3270	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
H [auth 7]	3.30.920.80	Alpha Beta	2-Layer Sandwich	Metal Transport, Frataxin	Chain A	CATH (4.3.0)
P [auth H]	3.30.920.80	Alpha Beta	2-Layer Sandwich	Metal Transport, Frataxin	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth 1], I [auth A]	PF10531	SLBB domain (SLBB)	SLBB domain		Domain
A [auth 1], I [auth A]	PF01512	Nuo51 FMN-binding domain (Complex1_51K)	Nuo51 FMN-binding domain	This entry represents the FMN-binding domain of NADH-ubiquinone oxidoreductase 51kDa subunit from NADH:ubiquinone oxidoreductase.	Domain
A [auth 1], I [auth A]	PF10589	NADH-ubiquinone oxidoreductase-F iron-sulfur binding region (NADH_4Fe-4S)	NADH-ubiquinone oxidoreductase-F iron-sulfur binding region		Domain
B [auth 2], J [auth B]	PF01257	Thioredoxin-like [2Fe-2S] ferredoxin (2Fe-2S_thioredx)	Thioredoxin-like [2Fe-2S] ferredoxin	-	Family
C [auth 3], K [auth C]	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 entire s ...	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
C [auth 3], K [auth C]	PF04879	Molybdopterin oxidoreductase Fe4S4 domain (Molybdop_Fe4S4)	Molybdopterin oxidoreductase Fe4S4 domain	This domain is found in formate dehydrogenase H for which the structure is known. This first domain (residues 1 to 60) of PDB:1aa6 is an Fe4S4 cluster just below the protein surface [1].	Domain
C [auth 3], K [auth C]	PF00384	Molybdopterin oxidoreductase (Molybdopterin)	Molybdopterin oxidoreductase		Domain
C [auth 3], K [auth C]	PF00111	2Fe-2S iron-sulfur cluster binding domain (Fer2)	2Fe-2S iron-sulfur cluster binding domain		Domain
C [auth 3], K [auth C]	PF22117	NADH-quinone oxidoreductase subunit 3, ferredoxin-like domain (Fer4_Nqo3)	NADH-quinone oxidoreductase subunit 3, ferredoxin-like domain	NADH-quinone oxidoreductase subunit 3 (Nqo3) is a component of respiratory complex I. This protein is located at the peripheral arm of the complex and consists of multiple domains. This entry represents the second ferredoxin-like domain which contain ...	NADH-quinone oxidoreductase subunit 3 (Nqo3) is a component of respiratory complex I. This protein is located at the peripheral arm of the complex and consists of multiple domains. This entry represents the second ferredoxin-like domain which contains Fe4-S4 cluster, one of the redox centers of the complex [1-5].	Domain
C [auth 3], K [auth C]	PF10588	NADH-ubiquinone oxidoreductase-G iron-sulfur binding region (NADH-G_4Fe-4S_3)	NADH-ubiquinone oxidoreductase-G iron-sulfur binding region		Domain
D [auth 4], L [auth D]	PF00346	Respiratory-chain NADH dehydrogenase, 49 Kd subunit (Complex1_49kDa)	Respiratory-chain NADH dehydrogenase, 49 Kd subunit	-	Family
E [auth 5], M [auth E]	PF00329	Respiratory-chain NADH dehydrogenase, 30 Kd subunit (Complex1_30kDa)	Respiratory-chain NADH dehydrogenase, 30 Kd subunit		Domain
F [auth 6], N [auth F]	PF01058	NADH ubiquinone oxidoreductase, 20 Kd subunit (Oxidored_q6)	NADH ubiquinone oxidoreductase, 20 Kd subunit		Domain
G [auth 9], O [auth G]	PF00037	4Fe-4S binding domain (Fer4)	4Fe-4S binding domain	Superfamily includes proteins containing domains which bind to iron-sulfur clusters. Members include bacterial ferredoxins, various dehydrogenases, and various reductases. Structure of the domain is an alpha-antiparallel beta sandwich.	Domain
H [auth 7], P [auth H]	PF11497	NADH-quinone oxidoreductase chain 15 (NADH_Oxid_Nqo15)	NADH-quinone oxidoreductase chain 15	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth 1], I [auth A]	NADH-quinone oxidoreductase subunit 1	FMN binding binding nucleoside phosphate binding ion binding anion binding nucleotide binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity electron transfer activity FMN binding binding nucleoside phosphate binding ion binding anion binding nucleotide binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity electron transfer activity active monoatomic ion transmembrane transporter activity NADH dehydrogenase (ubiquinone) activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity quinone binding NAD binding purine nucleotide binding adenyl nucleotide binding iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding cation binding metal ion binding	-	cell periphery cellular anatomical structure plasma membrane membrane
B [auth 2], J [auth B]	NADH-quinone oxidoreductase subunit 2	iron-sulfur cluster binding 2 iron, 2 sulfur cluster binding binding metal cluster binding small molecule binding oxidoreductase activity oxidoreductase activity, acting on NAD(P)H catalytic activity NADH dehydrogenase activity cation binding ion binding metal ion binding quinone binding	-	cell periphery cellular anatomical structure plasma membrane membrane
C [auth 3], K [auth C]	NADH-quinone oxidoreductase subunit 3	iron-sulfur cluster binding 2 iron, 2 sulfur cluster binding binding metal cluster binding small molecule binding monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity electron transfer activity active monoatomic ion transmembrane transporter activity NADH dehydrogenase (ubiquinone) activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity monoatomic ion transmembrane transporter activity iron-sulfur cluster binding 2 iron, 2 sulfur cluster binding binding metal cluster binding small molecule binding monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity electron transfer activity active monoatomic ion transmembrane transporter activity NADH dehydrogenase (ubiquinone) activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity quinone binding molybdopterin cofactor binding oxidoreductase activity oxidoreductase activity, acting on NAD(P)H catalytic activity 4 iron, 4 sulfur cluster binding cation binding ion binding metal ion binding	aerobic respiration cellular respiration oxidative phosphorylation energy derivation by oxidation of organic compounds respiratory electron transport chain ATP synthesis coupled electron transport electron transport chain metabolic process cellular process generation of precursor metabolites and energy	cell periphery cellular anatomical structure plasma membrane membrane
D [auth 4], L [auth D]	NADH-quinone oxidoreductase subunit 4	NAD binding binding nucleoside phosphate binding purine nucleotide binding adenyl nucleotide binding nucleotide binding heterocyclic compound binding small molecule binding oxidoreductase activity NAD(P)H dehydrogenase (quinone) activity oxidoreductase activity, acting on NAD(P)H catalytic activity oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor NADH dehydrogenase (quinone) (non-electrogenic) activity NAD binding binding nucleoside phosphate binding purine nucleotide binding adenyl nucleotide binding nucleotide binding heterocyclic compound binding small molecule binding oxidoreductase activity NAD(P)H dehydrogenase (quinone) activity oxidoreductase activity, acting on NAD(P)H catalytic activity oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor NADH dehydrogenase (quinone) (non-electrogenic) activity NADH dehydrogenase activity quinone binding	-	cell periphery cellular anatomical structure plasma membrane membrane
E [auth 5], M [auth E]	NADH-quinone oxidoreductase subunit 5	monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity electron transfer activity active monoatomic ion transmembrane transporter activity NADH dehydrogenase (ubiquinone) activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity oxidoreductase activity NAD(P)H dehydrogenase (quinone) activity oxidoreductase activity, acting on NAD(P)H monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity electron transfer activity active monoatomic ion transmembrane transporter activity NADH dehydrogenase (ubiquinone) activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity oxidoreductase activity NAD(P)H dehydrogenase (quinone) activity oxidoreductase activity, acting on NAD(P)H catalytic activity oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor NADH dehydrogenase (quinone) (non-electrogenic) activity NADH dehydrogenase activity binding quinone binding small molecule binding	-	cell periphery cellular anatomical structure plasma membrane membrane
F [auth 6], N [auth F]	NADH-quinone oxidoreductase subunit 6	iron-sulfur cluster binding binding 4 iron, 4 sulfur cluster binding metal cluster binding small molecule binding cation binding transition metal ion binding iron ion binding ion binding metal ion binding monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity electron transfer activity iron-sulfur cluster binding binding 4 iron, 4 sulfur cluster binding metal cluster binding small molecule binding cation binding transition metal ion binding iron ion binding ion binding metal ion binding monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity electron transfer activity active monoatomic ion transmembrane transporter activity NADH dehydrogenase (ubiquinone) activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity oxidoreductase activity NAD(P)H dehydrogenase (quinone) activity oxidoreductase activity, acting on NAD(P)H catalytic activity oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor NADH dehydrogenase (quinone) (non-electrogenic) activity NADH dehydrogenase activity quinone binding	electron transport coupled proton transport transport proton transmembrane transport monoatomic ion transmembrane transport establishment of localization monoatomic cation transmembrane transport transmembrane transport localization energy coupled proton transmembrane transport, against electrochemical gradient monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration electron transport coupled proton transport transport proton transmembrane transport monoatomic ion transmembrane transport establishment of localization monoatomic cation transmembrane transport transmembrane transport localization energy coupled proton transmembrane transport, against electrochemical gradient monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration energy derivation by oxidation of organic compounds metabolic process generation of precursor metabolites and energy	respiratory chain complex protein-containing complex catalytic complex membrane membrane protein complex transporter complex NADH dehydrogenase complex cellular anatomical structure transmembrane transporter complex respiratory chain complex I oxidoreductase complex cell periphery plasma membrane
G [auth 9], O [auth G]	NADH-quinone oxidoreductase subunit 9	iron-sulfur cluster binding binding 4 iron, 4 sulfur cluster binding metal cluster binding small molecule binding cation binding transition metal ion binding iron ion binding ion binding metal ion binding oxidoreductase activity NAD(P)H dehydrogenase (quinone) activity oxidoreductase activity, acting on NAD(P)H catalytic activity iron-sulfur cluster binding binding 4 iron, 4 sulfur cluster binding metal cluster binding small molecule binding cation binding transition metal ion binding iron ion binding ion binding metal ion binding oxidoreductase activity NAD(P)H dehydrogenase (quinone) activity oxidoreductase activity, acting on NAD(P)H catalytic activity oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor NADH dehydrogenase (quinone) (non-electrogenic) activity NADH dehydrogenase activity quinone binding	aerobic respiration cellular respiration energy derivation by oxidation of organic compounds metabolic process cellular process generation of precursor metabolites and energy	cell periphery cellular anatomical structure plasma membrane membrane
H [auth 7], P [auth H]	NADH-quinone oxidoreductase subunit 15	cation binding ferric iron binding transition metal ion binding iron ion binding ion binding binding metal ion binding small molecule binding quinone binding	cellular component biogenesis cellular component organization metallo-sulfur cluster assembly cellular component assembly iron-sulfur cluster assembly cellular process cellular component organization or biogenesis	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth 1], I [auth A]	IPR019575	NADH-ubiquinone oxidoreductase 51kDa subunit, iron-sulphur binding domain	Domain
A [auth 1], I [auth A]	IPR019554	Soluble ligand binding domain	Domain
A [auth 1], I [auth A]	IPR011537	NADH ubiquinone oxidoreductase, F subunit	Family
A [auth 1], I [auth A]	IPR001949	NADH:ubiquinone oxidoreductase, 51kDa subunit, conserved site	Conserved Site
A [auth 1], I [auth A]	IPR037225	NADH-ubiquinone oxidoreductase 51kDa subunit, FMN-binding domain superfamily	Homologous Superfamily
A [auth 1], I [auth A]	IPR037207	NADH-ubiquinone oxidoreductase 51kDa subunit, iron-sulphur binding domain superfamily	Homologous Superfamily
A [auth 1], I [auth A]	IPR011538	NADH-ubiquinone oxidoreductase 51kDa subunit, FMN-binding domain	Domain
B [auth 2], J [auth B]	IPR042128	NuoE domain	Domain
B [auth 2], J [auth B]	IPR002023	NADH-quinone oxidoreductase subunit E-like	Family
B [auth 2], J [auth B]	IPR041921	NADH-quinone oxidoreductase subunit E, N-terminal	Homologous Superfamily
B [auth 2], J [auth B]	IPR036249	Thioredoxin-like superfamily	Homologous Superfamily
C [auth 3], K [auth C]	IPR006963	Molybdopterin oxidoreductase, 4Fe-4S domain	Domain
C [auth 3], K [auth C]	IPR006657	Molybdopterin dinucleotide-binding domain	Domain
C [auth 3], K [auth C]	IPR006656	Molybdopterin oxidoreductase	Domain
C [auth 3], K [auth C]	IPR036010	2Fe-2S ferredoxin-like superfamily	Homologous Superfamily
C [auth 3], K [auth C]	IPR001041	2Fe-2S ferredoxin-type iron-sulfur binding domain	Domain
C [auth 3], K [auth C]	IPR001387	Cro/C1-type, helix-turn-helix domain	Domain
C [auth 3], K [auth C]	IPR000283	NADH:ubiquinone oxidoreductase, 75kDa subunit, conserved site	Conserved Site
C [auth 3], K [auth C]	IPR054351	NADH-ubiquinone oxidoreductase, ferredoxin-like domain	Domain
C [auth 3], K [auth C]	IPR010228	NADH:ubiquinone oxidoreductase, subunit G	Family
C [auth 3], K [auth C]	IPR009010	Aspartate decarboxylase-like domain superfamily	Homologous Superfamily
C [auth 3], K [auth C]	IPR050123	Prok_molybdopt-oxidoreductase	Unknown
C [auth 3], K [auth C]	IPR019574	NADH:ubiquinone oxidoreductase, subunit G, iron-sulphur binding	Domain
D [auth 4], L [auth D]	IPR022885	NAD(P)H-quinone oxidoreductase subunit D/H	Family
D [auth 4], L [auth D]	IPR014029	NADH:ubiquinone oxidoreductase, 49kDa subunit, conserved site	Conserved Site
D [auth 4], L [auth D]	IPR029014	[NiFe]-hydrogenase, large subunit	Homologous Superfamily
D [auth 4], L [auth D]	IPR001135	NADH-quinone oxidoreductase, subunit D	Domain
E [auth 5], M [auth E]	IPR037232	NADH:ubiquinone oxidoreductase, 30kDa subunit superfamily	Homologous Superfamily
E [auth 5], M [auth E]	IPR001268	NADH:ubiquinone oxidoreductase, 30kDa subunit	Domain
E [auth 5], M [auth E]	IPR020396	NADH:ubiquinone oxidoreductase, 30kDa subunit, conserved site	Conserved Site
E [auth 5], M [auth E]	IPR010218	NADH dehydrogenase, subunit C	Family
F [auth 6], N [auth F]	IPR006138	NADH-ubiquinone oxidoreductase, 20 Kd subunit	Family
F [auth 6], N [auth F]	IPR006137	NADH:ubiquinone oxidoreductase-like, 20kDa subunit	Domain
G [auth 9], O [auth G]	IPR017900	4Fe-4S ferredoxin, iron-sulphur binding, conserved site	Conserved Site
G [auth 9], O [auth G]	IPR017896	4Fe-4S ferredoxin-type, iron-sulphur binding domain	Domain
G [auth 9], O [auth G]	IPR010226	NADH-quinone oxidoreductase, chain I	Family
H [auth 7], P [auth H]	IPR021093	NADH-quinone oxidoreductase, subunit15	Family
H [auth 7], P [auth H]	IPR038458	NADH-quinone oxidoreductase, subunit 15 superfamily	Homologous Superfamily
H [auth 7], P [auth H]	IPR036524	Frataxin/CyaY superfamily	Homologous Superfamily

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A [auth 1], B [auth 2], C [auth 3], D [auth 4], E [auth 5] A [auth 1], B [auth 2], C [auth 3], D [auth 4], E [auth 5], F [auth 6], G [auth 9], H [auth 7], I [auth A], J [auth B], K [auth C], L [auth D], M [auth E], N [auth F], O [auth G], P [auth H]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Electron Transport Chain Complexes: Complex I	Complex I soluble domain, oxidized (2 mol/ASU)