6QBX | pdb_00006qbx

Ovine respiratory supercomplex I+III2 closed class.

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: mpstruc

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
SA [auth D2]	SCOP2B Superfamily	Antiporter subunits half-channel-like	8054160	3002280	SCOP2B (2022-06-29)
SA [auth D2]	SCOP2B Superfamily	Antiporter subunits half-channel-like	8047670	3002280	SCOP2B (2022-06-29)
RA [auth D4]	SCOP2B Superfamily	Antiporter subunits half-channel-like	8054155	3002280	SCOP2B (2022-06-29)
RA [auth D4]	SCOP2B Superfamily	Antiporter subunits half-channel-like	8048501	3002280	SCOP2B (2022-06-29)
QA [auth D5]	SCOP2B Superfamily	Antiporter subunits half-channel-like	8047664	3002280	SCOP2B (2022-06-29)
QA [auth D5]	SCOP2B Superfamily	Antiporter subunits half-channel-like	8048258	3002280	SCOP2B (2022-06-29)
PA [auth 4L]	SCOP2B Superfamily	NADH-quinone oxidoreductase, subunit 11-like	8053514	3002200	SCOP2B (2022-06-29)
OA [auth D6]	SCOP2B Superfamily	NADH-quinone oxidoreductase, subunit 11-like	8053518	3002200	SCOP2B (2022-06-29)
NA [auth D1]	SCOP2B Superfamily	Antiporter subunits half-channel-like	8054146	3002280	SCOP2B (2022-06-29)
MA [auth D3]	SCOP2B Superfamily	NADH-quinone oxidoreductase, subunit 11-like	8106704	3002200	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
R [auth h2]	e6qbxh21	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
H [auth h1]	e6qbxh11	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
Q [auth q2]	e6qbxq21	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
G [auth q1]	e6qbxq11	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
P [auth d2]	e6qbxd21	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
F [auth d1]	e6qbxd11	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
MB [auth A1]	e6qbxA11	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
LB [auth B1]	e6qbxB11	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
KB [auth C1]	e6qbxC11	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
O [auth f2]	e6qbxf21	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
E [auth f1]	e6qbxf11	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
HB [auth B2]	e6qbxB21	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
GB [auth B9]	e6qbxB91	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
CB [auth C2]	e6qbxC21	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
AB [auth A3]	e6qbxA31	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
ZA [auth S5]	e6qbxS51	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
YA [auth AJ]	e6qbxAJ1	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
N [auth c2]	e6qbxc21	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
D [auth c1]	e6qbxc11	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
XA [auth BJ]	e6qbxBJ1	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
WA [auth A8]	e6qbxA81	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
UA [auth B5]	e6qbxB51	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
SA [auth D2]	e6qbxD21	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
RA [auth D4]	e6qbxD41	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
QA [auth D5]	e6qbxD51	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
PA [auth 4L]	e6qbx4L1	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
OA [auth D6]	e6qbxD61	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
NA [auth D1]	e6qbxD11	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
M [auth b2]	e6qbxb21	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
C [auth b1]	e6qbxb11	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
MA [auth D3]	e6qbxD31	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
LA [auth AM]	e6qbxAM1	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
VA [auth AB]	e6qbxAB1	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
KA [auth AA]	e6qbxAA1	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
JA [auth AL]	e6qbxAL1	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
HA [auth A6]	e6qbxA61	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
GA [auth A5]	e6qbxA51	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
FA [auth A2]	e6qbxA21	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
EA [auth A9]	e6qbxA91	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
DA [auth S4]	e6qbxS41	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
L [auth a4]	e6qbxa41	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
B [auth a2]	e6qbxa21	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
CA [auth S6]	e6qbxS61	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
AA [auth S8]	e6qbxS81	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
Z [auth S7]	e6qbxS71	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
Y [auth S3]	e6qbxS31	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
W [auth S1]	e6qbxS11	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
V [auth V2]	e6qbxV21	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
U [auth V1]	e6qbxV11	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
T [auth i2]	e6qbxi21	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
J [auth i1]	e6qbxi11	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
K [auth a3]	e6qbxa31	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)
A [auth a1]	e6qbxa11	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v294.2)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
LB [auth B1]	PF00033	Cytochrome b/b6/petB (Cytochrome_B)	Cytochrome b/b6/petB		Domain
HB [auth B2]	PF00033	Cytochrome b/b6/petB (Cytochrome_B)	Cytochrome b/b6/petB		Domain
SA [auth D2]	PF00361	NADH:quinone oxidoreductase/Mrp antiporter, TM (Proton_antipo_M)	NADH:quinone oxidoreductase/Mrp antiporter, TM	This entry includes membrane transporters and represents some 7 of potentially 14-16 TM regions. In many instances, its members forms part of complex I that catalyses the transfer of two electrons from NADH to ubiquinone in a reaction that is associa ...	This entry includes membrane transporters and represents some 7 of potentially 14-16 TM regions. In many instances, its members forms part of complex I that catalyses the transfer of two electrons from NADH to ubiquinone in a reaction that is associated with proton translocation across the membrane, and in this context is a combination predominantly of subunits 2, 4, 5, 14, L, M and N [1]. In many bacterial species these proteins are probable stand-alone transporters not coupled with oxidoreduction [2].	Domain
SA [auth D2]	PF06444	NADH dehydrogenase subunit 2 C-terminus (NADH_dehy_S2_C)	NADH dehydrogenase subunit 2 C-terminus	This family consists of the C-terminal region specific to the eukaryotic NADH dehydrogenase subunit 2 protein and is found in conjunction with Pfam:PF00361.	Domain
RA [auth D4]	PF00361	NADH:quinone oxidoreductase/Mrp antiporter, TM (Proton_antipo_M)	NADH:quinone oxidoreductase/Mrp antiporter, TM	This entry includes membrane transporters and represents some 7 of potentially 14-16 TM regions. In many instances, its members forms part of complex I that catalyses the transfer of two electrons from NADH to ubiquinone in a reaction that is associa ...	This entry includes membrane transporters and represents some 7 of potentially 14-16 TM regions. In many instances, its members forms part of complex I that catalyses the transfer of two electrons from NADH to ubiquinone in a reaction that is associated with proton translocation across the membrane, and in this context is a combination predominantly of subunits 2, 4, 5, 14, L, M and N [1]. In many bacterial species these proteins are probable stand-alone transporters not coupled with oxidoreduction [2].	Domain
RA [auth D4]	PF01059	NADH-ubiquinone oxidoreductase chain 4, amino terminus (Oxidored_q5_N)	NADH-ubiquinone oxidoreductase chain 4, amino terminus	This domain is found at the N-terminal end of NADH-ubiquinone oxidoreductase chain 4 and similar sequences from bacteria and eukaryotes. This domain is found upstream of Pfam:PF00361 and shows an all-alpha structure.	Domain
QA [auth D5]	PF00361	NADH:quinone oxidoreductase/Mrp antiporter, TM (Proton_antipo_M)	NADH:quinone oxidoreductase/Mrp antiporter, TM	This entry includes membrane transporters and represents some 7 of potentially 14-16 TM regions. In many instances, its members forms part of complex I that catalyses the transfer of two electrons from NADH to ubiquinone in a reaction that is associa ...	This entry includes membrane transporters and represents some 7 of potentially 14-16 TM regions. In many instances, its members forms part of complex I that catalyses the transfer of two electrons from NADH to ubiquinone in a reaction that is associated with proton translocation across the membrane, and in this context is a combination predominantly of subunits 2, 4, 5, 14, L, M and N [1]. In many bacterial species these proteins are probable stand-alone transporters not coupled with oxidoreduction [2].	Domain
QA [auth D5]	PF06455	NADH dehydrogenase subunit 5 C-terminus (NADH5_C)	NADH dehydrogenase subunit 5 C-terminus	This entry represents the C-terminal region of several NADH dehydrogenase subunit 5 proteins and is found in conjunction with Pfam:PF00361 and Pfam:PF00662.	Domain
QA [auth D5]	PF00662	NADH-Ubiquinone oxidoreductase (complex I), chain 5 N-terminus (Proton_antipo_N)	NADH-Ubiquinone oxidoreductase (complex I), chain 5 N-terminus	This entry represents an amino terminal extension of Pfam:PF00361. Only NADH-Ubiquinone chain 5 and eubacterial chain L are in this family. This sub-family is part of complex I which catalyses the transfer of two electrons from NADH to ubiquinone in ...	This entry represents an amino terminal extension of Pfam:PF00361. Only NADH-Ubiquinone chain 5 and eubacterial chain L are in this family. This sub-family is part of complex I which catalyses the transfer of two electrons from NADH to ubiquinone in a reaction that is associated with proton translocation across the membrane.	Domain
PA [auth 4L]	PF00420	NADH-ubiquinone/plastoquinone oxidoreductase chain 4L (Oxidored_q2)	NADH-ubiquinone/plastoquinone oxidoreductase chain 4L	-	Family
OA [auth D6]	PF00499	NADH-ubiquinone/plastoquinone oxidoreductase chain 6 (Oxidored_q3)	NADH-ubiquinone/plastoquinone oxidoreductase chain 6	-	Family
NA [auth D1]	PF00146	NADH dehydrogenase (NADHdh)	NADH dehydrogenase	-	Family
MA [auth D3]	PF00507	NADH-ubiquinone/plastoquinone oxidoreductase, chain 3 (Oxidored_q4)	NADH-ubiquinone/plastoquinone oxidoreductase, chain 3	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
I [auth x1], S [auth x2]	UQCRFS1N	-	-	-
H [auth h1], R [auth h2]	Cytochrome b-c1 complex subunit 6	-	-	-
G [auth q1], Q [auth q2]	Ubiquinol-cytochrome c reductase complex III subunit VII	-	-	-
F [auth d1], P [auth d2]	Cytochrome b-c1 complex subunit 7	-	-	-
MB [auth A1]	NDUFA1	-	-	-
LB [auth B1]	NDUFB1	-	-	-
KB [auth C1]	NDUFC1	-	-	-
JB [auth BK]	NDUFB11	-	-	-
IB [auth B8]	NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 8, mitochondrial	-	-	-
E [auth f1], O [auth f2]	Cytochrome b-c1 complex subunit Rieske, mitochondrial	-	-	-
HB [auth B2]	NADH:ubiquinone oxidoreductase subunit B2	-	-	-
GB [auth B9]	NADH:ubiquinone oxidoreductase subunit B9	-	-	-
FB [auth B7]	NADH:ubiquinone oxidoreductase subunit B7	-	-	-
EB [auth B6]	NDUFB6	-	-	-
DB [auth B4]	NADH:ubiquinone oxidoreductase subunit B4	-	-	-
CB [auth C2]	NADH dehydrogenase [ubiquinone] 1 subunit C2	-	-	-
BB [auth B3]	NADH:ubiquinone oxidoreductase subunit B3	-	-	-
AB [auth A3]	NADH:ubiquinone oxidoreductase subunit A3	-	-	-
ZA [auth S5]	NADH:ubiquinone oxidoreductase subunit S5	-	-	-
YA [auth AJ]	NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 10, mitochondrial	-	-	-
D [auth c1], N [auth c2]	Cytochrome c1	-	-	-
XA [auth BJ]	NDUFB10	-	-	-
WA [auth A8]	NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 8	-	-	-
UA [auth B5]	NADH:ubiquinone oxidoreductase subunit B5	-	-	-
TA [auth AK]	NDUFA11	-	-	-
SA [auth D2]	NADH-ubiquinone oxidoreductase chain 2	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	protein-containing complex organization NADH dehydrogenase complex assembly cellular component organization cellular component biogenesis organelle organization cellular component assembly mitochondrial respiratory chain complex assembly protein-containing complex assembly cellular process cellular component organization or biogenesis mitochondrial respiratory chain complex I assembly mitochondrion organization reactive oxygen species metabolic process metabolic process protein-containing complex organization NADH dehydrogenase complex assembly cellular component organization cellular component biogenesis organelle organization cellular component assembly mitochondrial respiratory chain complex assembly protein-containing complex assembly cellular process cellular component organization or biogenesis mitochondrial respiratory chain complex I assembly mitochondrion organization reactive oxygen species metabolic process metabolic process aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, NADH to ubiquinone respiratory electron transport chain mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm organelle membrane respiratory chain complex protein-containing complex catalytic complex membrane protein complex transporter complex NADH dehydrogenase complex transmembrane transporter complex respiratory chain complex I oxidoreductase complex
RA [auth D4]	NADH-ubiquinone oxidoreductase chain 4	binding quinone binding ubiquinone binding small molecule binding oxidoreductase activity oxidoreductase activity, acting on NAD(P)H catalytic activity NADH dehydrogenase activity 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 binding quinone binding ubiquinone binding small molecule binding oxidoreductase activity oxidoreductase activity, acting on NAD(P)H catalytic activity NADH dehydrogenase activity 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	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 protein-containing complex organization NADH dehydrogenase complex assembly 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 protein-containing complex organization NADH dehydrogenase complex assembly cellular component organization cellular component biogenesis organelle organization cellular component assembly mitochondrial respiratory chain complex assembly protein-containing complex assembly cellular component organization or biogenesis mitochondrial respiratory chain complex I assembly mitochondrion organization aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, NADH to ubiquinone respiratory electron transport chain metabolic process mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm organelle membrane respiratory chain complex protein-containing complex catalytic complex membrane protein complex transporter complex NADH dehydrogenase complex transmembrane transporter complex respiratory chain complex I oxidoreductase complex
QA [auth D5]	NADH-ubiquinone oxidoreductase chain 5	oxidoreductase activity oxidoreductase activity, acting on NAD(P)H catalytic activity NADH dehydrogenase activity 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 oxidoreductase activity oxidoreductase activity, acting on NAD(P)H catalytic activity NADH dehydrogenase activity 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	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 protein-containing complex organization NADH dehydrogenase complex assembly 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 protein-containing complex organization NADH dehydrogenase complex assembly cellular component organization cellular component biogenesis organelle organization cellular component assembly mitochondrial respiratory chain complex assembly protein-containing complex assembly cellular component organization or biogenesis mitochondrial respiratory chain complex I assembly mitochondrion organization aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, NADH to ubiquinone respiratory electron transport chain metabolic process mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm organelle membrane respiratory chain complex protein-containing complex catalytic complex membrane protein complex transporter complex NADH dehydrogenase complex transmembrane transporter complex respiratory chain complex I oxidoreductase complex
PA [auth 4L]	NADH-ubiquinone oxidoreductase chain 4L	oxidoreductase activity oxidoreductase activity, acting on NAD(P)H catalytic activity 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	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	membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm organelle membrane respiratory chain complex protein-containing complex catalytic complex membrane protein complex transporter complex NADH dehydrogenase complex transmembrane transporter complex respiratory chain complex I oxidoreductase complex
OA [auth D6]	NADH-ubiquinone oxidoreductase chain 6	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	protein-containing complex organization NADH dehydrogenase complex assembly cellular component organization cellular component biogenesis organelle organization cellular component assembly mitochondrial respiratory chain complex assembly protein-containing complex assembly cellular process cellular component organization or biogenesis mitochondrial respiratory chain complex I assembly mitochondrion organization aerobic respiration cellular respiration protein-containing complex organization NADH dehydrogenase complex assembly cellular component organization cellular component biogenesis organelle organization cellular component assembly mitochondrial respiratory chain complex assembly protein-containing complex assembly cellular process cellular component organization or biogenesis mitochondrial respiratory chain complex I assembly mitochondrion organization aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, NADH to ubiquinone respiratory electron transport chain metabolic process mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm organelle membrane respiratory chain complex protein-containing complex catalytic complex membrane protein complex transporter complex NADH dehydrogenase complex transmembrane transporter complex respiratory chain complex I oxidoreductase complex
NA [auth D1]	NADH-ubiquinone oxidoreductase chain 1	oxidoreductase activity oxidoreductase activity, acting on NAD(P)H catalytic activity NADH dehydrogenase activity 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 oxidoreductase activity oxidoreductase activity, acting on NAD(P)H catalytic activity NADH dehydrogenase activity 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	protein-containing complex organization NADH dehydrogenase complex assembly cellular component organization cellular component biogenesis organelle organization cellular component assembly mitochondrial respiratory chain complex assembly protein-containing complex assembly cellular process cellular component organization or biogenesis mitochondrial respiratory chain complex I assembly mitochondrion organization aerobic respiration cellular respiration protein-containing complex organization NADH dehydrogenase complex assembly cellular component organization cellular component biogenesis organelle organization cellular component assembly mitochondrial respiratory chain complex assembly protein-containing complex assembly cellular process cellular component organization or biogenesis mitochondrial respiratory chain complex I assembly mitochondrion organization aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, NADH to ubiquinone respiratory electron transport chain metabolic process mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm organelle membrane respiratory chain complex protein-containing complex catalytic complex membrane protein complex transporter complex NADH dehydrogenase complex transmembrane transporter complex respiratory chain complex I oxidoreductase complex
C [auth b1], M [auth b2]	Cytochrome b	oxidoreductase activity catalytic activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity quinol-cytochrome-c reductase activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity cation binding oxidoreductase activity catalytic activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity quinol-cytochrome-c reductase activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity cation binding ion binding binding metal ion binding small molecule binding	aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, ubiquinol to cytochrome c respiratory electron transport chain metabolic process cellular process mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm organelle membrane respiratory chain complex protein-containing complex cytochrome complex catalytic complex transmembrane transporter complex membrane protein complex transporter complex respiratory chain complex III
MA [auth D3]	NADH-ubiquinone oxidoreductase chain 3	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	aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, NADH to ubiquinone respiratory electron transport chain metabolic process cellular process mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm organelle membrane respiratory chain complex protein-containing complex catalytic complex membrane protein complex transporter complex NADH dehydrogenase complex transmembrane transporter complex respiratory chain complex I oxidoreductase complex
LA [auth AM]	NDUFA13	-	-	-
KA [auth AA], VA [auth AB]	Acyl carrier protein	-	-	-
JA [auth AL]	NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 12	-	-	-
IA [auth A7]	NDUFA7	-	-	-
HA [auth A6]	NADH:ubiquinone oxidoreductase subunit A6	-	-	-
GA [auth A5]	NDUFA5	-	-	-
FA [auth A2]	NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 2	-	-	-
EA [auth A9]	NADH:ubiquinone oxidoreductase subunit A9	-	-	-
DA [auth S4]	NADH:ubiquinone oxidoreductase subunit S4	-	-	-
B [auth a2], L [auth a4]	Ubiquinol-cytochrome c reductase core protein 2	-	-	-
CA [auth S6]	NDUFS6	-	-	-
BA [auth V3]	NDUFV3	-	-	-
AA [auth S8]	NDUFS8	-	-	-
Z [auth S7]	NDUFS7	-	-	-
Y [auth S3]	NADH:ubiquinone oxidoreductase core subunit S3	-	-	-
X [auth S2]	NDUFS2	-	-	-
W [auth S1]	NADH:ubiquinone oxidoreductase core subunit S1	-	-	-
V [auth V2]	NDUFV2	-	-	-
U [auth V1]	NADH dehydrogenase [ubiquinone] flavoprotein 1, mitochondrial	-	-	-
J [auth i1], T [auth i2]	Ubiquinol-cytochrome c reductase, complex III subunit X	-	-	-
A [auth a1], K [auth a3]	Ubiquinol-cytochrome c reductase core protein 1	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
SA [auth D2]	IPR010933	NADH dehydrogenase subunit 2, C-terminal	Domain
SA [auth D2]	IPR003917	NADH:ubiquinone oxidoreductase, chain 2	Family
SA [auth D2]	IPR050175	Complex I Subunit 2	Family
SA [auth D2]	IPR001750	NADH:quinone oxidoreductase/Mrp antiporter, transmembrane domain	Domain
RA [auth D4]	IPR003918	NADH:ubiquinone oxidoreductase	Family
RA [auth D4]	IPR010227	NADH-quinone oxidoreductase, chain M/4	Family
RA [auth D4]	IPR000260	NADH:ubiquinone oxidoreductase chain 4, N-terminal	Domain
RA [auth D4]	IPR001750	NADH:quinone oxidoreductase/Mrp antiporter, transmembrane domain	Domain
QA [auth D5]	IPR003945	NADH-quinone oxidoreductase, chain 5-like	Family
QA [auth D5]	IPR010934	NADH dehydrogenase subunit 5, C-terminal	Domain
QA [auth D5]	IPR001516	NADH-Ubiquinone oxidoreductase (complex I), chain 5 N-terminal	Domain
QA [auth D5]	IPR001750	NADH:quinone oxidoreductase/Mrp antiporter, transmembrane domain	Domain
QA [auth D5]	IPR018393	NADH-plastoquinone oxidoreductase, chain 5 subgroup	Family
PA [auth 4L]	IPR001133	NADH-ubiquinone oxidoreductase chain 4L/K	Family
PA [auth 4L]	IPR039428	NADH-ubiquinone oxidoreductase chain 4L/Mnh complex subunit C1-like	Family
OA [auth D6]	IPR050269	Complex I Subunit 6	Family
OA [auth D6]	IPR042106	NADH-ubiquinone/plastoquinone oxidoreductase chain 6, subunit NuoJ	Homologous Superfamily
OA [auth D6]	IPR001457	NADH:ubiquinone/plastoquinone oxidoreductase, chain 6	Family
NA [auth D1]	IPR001694	NADH:ubiquinone oxidoreductase, subunit 1/F420H2 oxidoreductase subunit H	Family
NA [auth D1]	IPR018086	NADH:ubiquinone oxidoreductase, subunit 1, conserved site	Conserved Site
C [auth b1], M [auth b2]	IPR036150	Cytochrome b/b6, C-terminal domain superfamily	Homologous Superfamily
C [auth b1], M [auth b2]	IPR027387	Cytochrome b/b6-like domain superfamily	Homologous Superfamily
C [auth b1], M [auth b2]	IPR048260	Cytochrome b/b6, C-terminal domain, eukaryotic/bacterial	Domain
C [auth b1], M [auth b2]	IPR016174	Di-haem cytochrome, transmembrane	Homologous Superfamily
C [auth b1], M [auth b2]	IPR005798	Cytochrome b/b6, C-terminal	Domain
C [auth b1], M [auth b2]	IPR048259	Cytochrome b/b6, N-terminal domain, eukaryotic/bacterial	Domain
C [auth b1], M [auth b2]	IPR030689	Cytochrome b	Family
C [auth b1], M [auth b2]	IPR005797	Cytochrome b/b6, N-terminal domain	Domain
MA [auth D3]	IPR000440	NADH:ubiquinone/plastoquinone oxidoreductase, chain 3	Family
MA [auth D3]	IPR038430	NADH:ubiquinone oxidoreductase, subunit 3 superfamily	Homologous Superfamily

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
C [auth b1], M [auth b2], MA [auth D3], NA [auth D1], OA [auth D6] C [auth b1], M [auth b2], MA [auth D3], NA [auth D1], OA [auth D6], PA [auth 4L], QA [auth D5], RA [auth D4], SA [auth D2]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Electron Transport Chain Supercomplexes (Respirasome)	Electron Transport Chain (ETC) Super Complex I+III₂, closed class

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.