Annotations: 6YMX

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
J [auth j]	d6ymxj_	All alpha proteins	Cytochrome c oxidase subunit h	Cytochrome c oxidase subunit h	automated matches	automated matches	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
V [auth L]	d6ymxl1	Alpha and beta proteins (a+b)	LuxS/MPP-like metallohydrolase	LuxS/MPP-like metallohydrolase	MPP-like	automated matches	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
M [auth A]	d6ymxa1	Alpha and beta proteins (a+b)	LuxS/MPP-like metallohydrolase	LuxS/MPP-like metallohydrolase	MPP-like	automated matches	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
N [auth B]	d6ymxb1	Alpha and beta proteins (a+b)	LuxS/MPP-like metallohydrolase	LuxS/MPP-like metallohydrolase	MPP-like	automated matches	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
W [auth M]	d6ymxm1	Alpha and beta proteins (a+b)	LuxS/MPP-like metallohydrolase	LuxS/MPP-like metallohydrolase	MPP-like	automated matches	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
X [auth N]	d6ymxn1	Membrane and cell surface proteins and peptides	Heme-binding four-helical bundle	Transmembrane di-heme cytochromes	Cytochrome b of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	automated matches	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
X [auth N]	d6ymxn2	Membrane and cell surface proteins and peptides	a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	automated matches	automated matches	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
P [auth D]	d6ymxd1	All alpha proteins	Cytochrome c	Cytochrome c	Cytochrome bc1 domain	automated matches	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
P [auth D]	d6ymxd2	Membrane and cell surface proteins and peptides	Single transmembrane helix	Cytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor	automated matches	automated matches	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
Y [auth O]	d6ymxo1	All alpha proteins	Cytochrome c	Cytochrome c	Cytochrome bc1 domain	automated matches	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
Y [auth O]	d6ymxo2	Membrane and cell surface proteins and peptides	Single transmembrane helix	Cytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor	automated matches	automated matches	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
Q [auth E]	d6ymxe2	All beta proteins	ISP domain	ISP domain	Rieske iron-sulfur protein (ISP)	automated matches	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
Q [auth E]	d6ymxe1	Membrane and cell surface proteins and peptides	Single transmembrane helix	ISP transmembrane anchor	automated matches	automated matches	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
Z [auth P]	d6ymxp2	All beta proteins	ISP domain	ISP domain	Rieske iron-sulfur protein (ISP)	automated matches	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
Z [auth P]	d6ymxp1	Membrane and cell surface proteins and peptides	Single transmembrane helix	ISP transmembrane anchor	automated matches	automated matches	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
R [auth F]	d6ymxf_	Membrane and cell surface proteins and peptides	Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
BA [auth R]	d6ymxr_	Membrane and cell surface proteins and peptides	14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	automated matches	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
S [auth G]	d6ymxg_	Membrane and cell surface proteins and peptides	14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	automated matches	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
CA [auth S]	d6ymxs_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
T [auth H]	d6ymxh_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
U [auth I]	d6ymxi_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	automated matches	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
AA [auth Q]	d6ymxq_	Membrane and cell surface proteins and peptides	Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
DA [auth T]	d6ymxt_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	automated matches	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
C [auth c]	d6ymxc_	Membrane and cell surface proteins and peptides	Cytochrome c oxidase subunit III-like	Cytochrome c oxidase subunit III-like	automated matches	automated matches	(Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth a]	SCOP2B Superfamily	Cytochrome c oxidase subunit I-like	8095115	3000653	SCOP2B (2022-06-29)
J [auth j]	SCOP2B Superfamily	Cytochrome c oxidase subunit h	8095569	3000395	SCOP2B (2022-06-29)
V [auth L]	SCOP2B Superfamily	LuxS/MPP-like metallohydrolase	8040292	3001831	SCOP2B (2022-06-29)
V [auth L]	SCOP2B Superfamily	LuxS/MPP-like metallohydrolase	8040294	3001831	SCOP2B (2022-06-29)
M [auth A]	SCOP2B Superfamily	LuxS/MPP-like metallohydrolase	8040292	3001831	SCOP2B (2022-06-29)
M [auth A]	SCOP2B Superfamily	LuxS/MPP-like metallohydrolase	8040294	3001831	SCOP2B (2022-06-29)
N [auth B]	SCOP2B Superfamily	LuxS/MPP-like metallohydrolase	8040300	3001831	SCOP2B (2022-06-29)
N [auth B]	SCOP2B Superfamily	LuxS/MPP-like metallohydrolase	8040297	3001831	SCOP2B (2022-06-29)
W [auth M]	SCOP2B Superfamily	LuxS/MPP-like metallohydrolase	8040297	3001831	SCOP2B (2022-06-29)
W [auth M]	SCOP2B Superfamily	LuxS/MPP-like metallohydrolase	8040300	3001831	SCOP2B (2022-06-29)
X [auth N]	SCOP2B Superfamily	Transmembrane di-heme cytochromes	8040302	3000517	SCOP2B (2022-06-29)
X [auth N]	SCOP2B Superfamily	a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	8040299	3000966	SCOP2B (2022-06-29)
O [auth C]	SCOP2B Superfamily	a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	8040299	3000966	SCOP2B (2022-06-29)
O [auth C]	SCOP2B Superfamily	Transmembrane di-heme cytochromes	8040302	3000517	SCOP2B (2022-06-29)
P [auth D]	SCOP2B Superfamily	Cytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) transmembrane anchor	8040305	3000762	SCOP2B (2022-06-29)
P [auth D]	SCOP2B Superfamily	Cytochrome c	8040304	3000815	SCOP2B (2022-06-29)
Y [auth O]	SCOP2B Superfamily	Cytochrome c	8040304	3000815	SCOP2B (2022-06-29)
Y [auth O]	SCOP2B Superfamily	Cytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) transmembrane anchor	8040305	3000762	SCOP2B (2022-06-29)
Q [auth E]	SCOP2B Superfamily	ISP transmembrane anchor	8040308	3000753	SCOP2B (2022-06-29)
Q [auth E]	SCOP2B Superfamily	ISP domain	8040307	3000233	SCOP2B (2022-06-29)
Z [auth P]	SCOP2B Superfamily	ISP transmembrane anchor	8040308	3000753	SCOP2B (2022-06-29)
Z [auth P]	SCOP2B Superfamily	ISP domain	8040307	3000233	SCOP2B (2022-06-29)
R [auth F]	SCOP2B Superfamily	Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	8040312	3000806	SCOP2B (2022-06-29)
BA [auth R]	SCOP2B Superfamily	14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	8040315	3000797	SCOP2B (2022-06-29)
S [auth G]	SCOP2B Superfamily	14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	8040315	3000797	SCOP2B (2022-06-29)
CA [auth S]	SCOP2B Superfamily	Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	8040318	3000770	SCOP2B (2022-06-29)
T [auth H]	SCOP2B Superfamily	Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	8040318	3000770	SCOP2B (2022-06-29)
U [auth I]	SCOP2B Superfamily	Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	8040319	3000779	SCOP2B (2022-06-29)
AA [auth Q]	SCOP2B Superfamily	Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	8040312	3000806	SCOP2B (2022-06-29)
DA [auth T]	SCOP2B Superfamily	Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	8040319	3000779	SCOP2B (2022-06-29)
C [auth c]	SCOP2B Superfamily	Cytochrome c oxidase subunit III-like	8095567	3000671	SCOP2B (2022-06-29)
F [auth f]	SCOP2B Superfamily	Cytochrome c oxidase subunit E	8095803	3001402	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 [auth a]	COX1	e6ymxa1	A: alpha superhelices	X: Cytochrome c oxidase subunit I-like	H: Cytochrome c oxidase subunit I-like (From Topology)	T: Cytochrome c oxidase subunit I-like	F: COX1	ECOD (1.6)
J [auth j]	COX6B	e6ymxj1	A: few secondary structure elements	X: Cytochrome c oxidase subunit h (From Topology)	H: Cytochrome c oxidase subunit h (From Topology)	T: Cytochrome c oxidase subunit h	F: COX6B	ECOD (1.6)
K [auth k]	COX6A	e6ymxk1	A: extended segments	X: Mitochondrial cytochrome c oxidase subunit VIa (From Topology)	H: Mitochondrial cytochrome c oxidase subunit VIa (From Topology)	T: Mitochondrial cytochrome c oxidase subunit VIa	F: COX6A	ECOD (1.6)
V [auth L]	Peptidase_M16_C	e6ymxL1	A: a+b two layers	X: LuxS, MPP, ThrRS/AlaRS common domain	H: LuxS, MPP, ThrRS/AlaRS common domain	T: LuxS/MPP-like metallohydrolase	F: Peptidase_M16_C	ECOD (1.6)
V [auth L]	Peptidase_M16	e6ymxL2	A: a+b two layers	X: LuxS, MPP, ThrRS/AlaRS common domain	H: LuxS, MPP, ThrRS/AlaRS common domain	T: LuxS/MPP-like metallohydrolase	F: Peptidase_M16	ECOD (1.6)
M [auth A]	Peptidase_M16_C	e6ymxA2	A: a+b two layers	X: LuxS, MPP, ThrRS/AlaRS common domain	H: LuxS, MPP, ThrRS/AlaRS common domain	T: LuxS/MPP-like metallohydrolase	F: Peptidase_M16_C	ECOD (1.6)
M [auth A]	Peptidase_M16	e6ymxA1	A: a+b two layers	X: LuxS, MPP, ThrRS/AlaRS common domain	H: LuxS, MPP, ThrRS/AlaRS common domain	T: LuxS/MPP-like metallohydrolase	F: Peptidase_M16	ECOD (1.6)
N [auth B]	Peptidase_M16	e6ymxB1	A: a+b two layers	X: LuxS, MPP, ThrRS/AlaRS common domain	H: LuxS, MPP, ThrRS/AlaRS common domain	T: LuxS/MPP-like metallohydrolase	F: Peptidase_M16	ECOD (1.6)
N [auth B]	UNK_F_TYPE	e6ymxB2	A: a+b two layers	X: LuxS, MPP, ThrRS/AlaRS common domain	H: LuxS, MPP, ThrRS/AlaRS common domain	T: LuxS/MPP-like metallohydrolase	F: UNK_F_TYPE	ECOD (1.6)
W [auth M]	Peptidase_M16	e6ymxM1	A: a+b two layers	X: LuxS, MPP, ThrRS/AlaRS common domain	H: LuxS, MPP, ThrRS/AlaRS common domain	T: LuxS/MPP-like metallohydrolase	F: Peptidase_M16	ECOD (1.6)
W [auth M]	UNK_F_TYPE	e6ymxM2	A: a+b two layers	X: LuxS, MPP, ThrRS/AlaRS common domain	H: LuxS, MPP, ThrRS/AlaRS common domain	T: LuxS/MPP-like metallohydrolase	F: UNK_F_TYPE	ECOD (1.6)
X [auth N]	Cytochrom_B_C	e6ymxN2	A: alpha bundles	X: a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	H: a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: Cytochrom_B_C	ECOD (1.6)
X [auth N]	Cytochrome_B	e6ymxN1	A: alpha bundles	X: Transmembrane heme-binding four-helical bundle (From Homology)	H: Transmembrane heme-binding four-helical bundle	T: Transmembrane di-heme cytochromes	F: Cytochrome_B	ECOD (1.6)
O [auth C]	Cytochrom_B_C	e6ymxC2	A: alpha bundles	X: a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	H: a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: Cytochrom_B_C	ECOD (1.6)
O [auth C]	Cytochrome_B	e6ymxC1	A: alpha bundles	X: Transmembrane heme-binding four-helical bundle (From Homology)	H: Transmembrane heme-binding four-helical bundle	T: Transmembrane di-heme cytochromes	F: Cytochrome_B	ECOD (1.6)
P [auth D]	Cytochrom_C1_N	e6ymxD2	A: alpha arrays	X: Cytochrome c-like	H: Cytochrome c (From Topology)	T: Cytochrome c	F: Cytochrom_C1_N	ECOD (1.6)
P [auth D]	Cytochrom_C1_C	e6ymxD1	A: extended segments	X: cytochrome c1 transmembrane anchor (From Topology)	H: cytochrome c1 transmembrane anchor (From Topology)	T: cytochrome c1 transmembrane anchor	F: Cytochrom_C1_C	ECOD (1.6)
Y [auth O]	Cytochrom_C1_N	e6ymxO2	A: alpha arrays	X: Cytochrome c-like	H: Cytochrome c (From Topology)	T: Cytochrome c	F: Cytochrom_C1_N	ECOD (1.6)
Y [auth O]	Cytochrom_C1_C	e6ymxO1	A: extended segments	X: cytochrome c1 transmembrane anchor (From Topology)	H: cytochrome c1 transmembrane anchor (From Topology)	T: cytochrome c1 transmembrane anchor	F: Cytochrom_C1_C	ECOD (1.6)
Q [auth E]	Rieske_cytochrome_bc1	e6ymxE2	A: beta sandwiches	X: ISP domain (From Topology)	H: ISP domain (From Topology)	T: ISP domain	F: Rieske_cytochrome_bc1	ECOD (1.6)
Q [auth E]	Rieske_6	e6ymxE1	A: few secondary structure elements	X: Trm112p-like (From Topology)	H: Trm112p-like (From Topology)	T: Trm112p-like	F: Rieske_6	ECOD (1.6)
Q [auth E]	UCR_TM	e6ymxE3	A: extended segments	X: iron-sulfur subunit (ISP) transmembrane anchor (From Topology)	H: iron-sulfur subunit (ISP) transmembrane anchor (From Topology)	T: iron-sulfur subunit (ISP) transmembrane anchor	F: UCR_TM	ECOD (1.6)
Z [auth P]	Rieske_cytochrome_bc1	e6ymxP2	A: beta sandwiches	X: ISP domain (From Topology)	H: ISP domain (From Topology)	T: ISP domain	F: Rieske_cytochrome_bc1	ECOD (1.6)
Z [auth P]	Rieske_6	e6ymxP3	A: few secondary structure elements	X: Trm112p-like (From Topology)	H: Trm112p-like (From Topology)	T: Trm112p-like	F: Rieske_6	ECOD (1.6)
Z [auth P]	UCR_TM	e6ymxP1	A: extended segments	X: iron-sulfur subunit (ISP) transmembrane anchor (From Topology)	H: iron-sulfur subunit (ISP) transmembrane anchor (From Topology)	T: iron-sulfur subunit (ISP) transmembrane anchor	F: UCR_TM	ECOD (1.6)
R [auth F]	UCR_hinge	e6ymxF1	A: alpha bundles	X: cytochrome bc1 complex 11 kDa protein-like	H: Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: UCR_hinge	ECOD (1.6)
BA [auth R]	UCR_14kD	e6ymxR1	A: alpha arrays	X: 14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	H: 14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: 14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: UCR_14kD	ECOD (1.6)
S [auth G]	UCR_14kD	e6ymxG1	A: alpha arrays	X: 14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	H: 14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: 14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: UCR_14kD	ECOD (1.6)
B [auth b]	COX2	e6ymxb2	A: beta sandwiches	X: Cupredoxin-like	H: Cupredoxin-related (From Topology)	T: Cupredoxin-related	F: COX2	ECOD (1.6)
B [auth b]	COX2_TM	e6ymxb1	A: extended segments	X: Cytochrome c oxidase subunit II-like, transmembrane region (From Topology)	H: Cytochrome c oxidase subunit II-like, transmembrane region (From Topology)	T: Cytochrome c oxidase subunit II-like, transmembrane region	F: COX2_TM	ECOD (1.6)
CA [auth S]	UcrQ	e6ymxS1	A: extended segments	X: Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	H: Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: UcrQ	ECOD (1.6)
T [auth H]	UcrQ	e6ymxH1	A: extended segments	X: Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	H: Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: UcrQ	ECOD (1.6)
U [auth I]	UCR_UQCRX_QCR9	e6ymxI1	A: extended segments	X: Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	H: Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: UCR_UQCRX_QCR9	ECOD (1.6)
AA [auth Q]	UCR_hinge	e6ymxQ1	A: alpha bundles	X: cytochrome bc1 complex 11 kDa protein-like	H: Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: UCR_hinge	ECOD (1.6)
DA [auth T]	UCR_UQCRX_QCR9	e6ymxT1	A: extended segments	X: Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	H: Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: UCR_UQCRX_QCR9	ECOD (1.6)
EA [auth U]	UNK_F_TYPE	e6ymxU1	A: extended segments	X: Subunit XI (6.4 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	H: Subunit XI (6.4 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: Subunit XI (6.4 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: UNK_F_TYPE	ECOD (1.6)
FA [auth V]	UNK_F_TYPE	e6ymxV1	A: extended segments	X: Subunit XI (6.4 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	H: Subunit XI (6.4 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: Subunit XI (6.4 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: UNK_F_TYPE	ECOD (1.6)
C [auth c]	COX3	e6ymxc1	A: alpha bundles	X: Cytochrome c oxidase subunit III-like (From Topology)	H: Cytochrome c oxidase subunit III-like (From Topology)	T: Cytochrome c oxidase subunit III-like	F: COX3	ECOD (1.6)
D [auth d]	COX5B	e6ymxd1	A: few secondary structure elements	X: Rubredoxin-like	H: Rubredoxin-related	T: Cytochrome c oxidase Subunit F	F: COX5B	ECOD (1.6)
E [auth e]	COX4	e6ymxe1	A: extended segments	X: Mitochondrial cytochrome c oxidase subunit IV (From Topology)	H: Mitochondrial cytochrome c oxidase subunit IV (From Topology)	T: Mitochondrial cytochrome c oxidase subunit IV	F: COX4	ECOD (1.6)
F [auth f]	COX5A	e6ymxf1	A: alpha superhelices	X: Repetitive alpha hairpins	H: Cytochrome c oxidase subunit E (From Topology)	T: Cytochrome c oxidase subunit E	F: COX5A	ECOD (1.6)
G [auth g]	UNK_F_TYPE	e6ymxg1	A: extended segments	X: Mitochondrial cytochrome c oxidase subunit VIIa (From Topology)	H: Mitochondrial cytochrome c oxidase subunit VIIa (From Topology)	T: Mitochondrial cytochrome c oxidase subunit VIIa	F: UNK_F_TYPE	ECOD (1.6)
H [auth h]	UNK_F_TYPE	e6ymxh1	A: extended segments	X: Mitochondrial cytochrome c oxidase subunit VIIc (aka VIIIa) (From Topology)	H: Mitochondrial cytochrome c oxidase subunit VIIc (aka VIIIa) (From Topology)	T: Mitochondrial cytochrome c oxidase subunit VIIc (aka VIIIa)	F: UNK_F_TYPE	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth a]	PF00115	Cytochrome C and Quinol oxidase polypeptide I (COX1)	Cytochrome C and Quinol oxidase polypeptide I	-	Family
J [auth j]	PF02297	Cytochrome oxidase c subunit VIb (COX6B)	Cytochrome oxidase c subunit VIb	Cytochrome c oxidase, a 13 sub-unit complex, EC:1.9.3.1 is the terminal oxidase in the mitochondrial electron transport chain. This family is composed of the potentially heme-binding subunit IVb of the oxidase.	Domain
K [auth k]	PF02046	Cytochrome c oxidase subunit VIa (COX6A)	Cytochrome c oxidase subunit VIa	-	Family
M [auth A], V [auth L]	PF05193	Peptidase M16 inactive domain (Peptidase_M16_C)	Peptidase M16 inactive domain	Peptidase M16 consists of two structurally related domains. One is the active peptidase, whereas the other is inactive. The two domains hold the substrate like a clamp [1].	Domain
M [auth A], V [auth L]	PF00675	Insulinase (Peptidase family M16) (Peptidase_M16)	Insulinase (Peptidase family M16)	-	Family
N [auth B], W [auth M]	PF00675	Insulinase (Peptidase family M16) (Peptidase_M16)	Insulinase (Peptidase family M16)	-	Family
O [auth C], X [auth N]	PF00032	Cytochrome b(C-terminal)/b6/petD (Cytochrom_B_C)	Cytochrome b(C-terminal)/b6/petD	-	Domain
O [auth C], X [auth N]	PF00033	Cytochrome b/b6/petB (Cytochrome_B)	Cytochrome b/b6/petB	-	Domain
P [auth D], Y [auth O]	PF02167	Cytochrome C1 family (Cytochrom_C1)	Cytochrome C1 family	-	Family
Q [auth E], Z [auth P]	PF02921	Ubiquinol cytochrome reductase transmembrane region (UCR_TM)	Ubiquinol cytochrome reductase transmembrane region	-	Family
Q [auth E], Z [auth P]	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
R [auth F]	PF02320	Ubiquinol-cytochrome C reductase hinge protein (UCR_hinge)	Ubiquinol-cytochrome C reductase hinge protein	-	Family
BA [auth R], S [auth G]	PF02271	Ubiquinol-cytochrome C reductase complex 14kD subunit (UCR_14kD)	Ubiquinol-cytochrome C reductase complex 14kD subunit	-	Family
B [auth b]	PF00116	Cytochrome C oxidase subunit II, periplasmic domain (COX2)	Cytochrome C oxidase subunit II, periplasmic domain	-	Domain
B [auth b]	PF02790	Cytochrome C oxidase subunit II, transmembrane domain (COX2_TM)	Cytochrome C oxidase subunit II, transmembrane domain	-	Family
CA [auth S], T [auth H]	PF02939	UcrQ family (UcrQ)	UcrQ family	-	Family
U [auth I]	PF05365	Ubiquinol-cytochrome C reductase, UQCRX/QCR9 like (UCR_UQCRX_QCR9)	Ubiquinol-cytochrome C reductase, UQCRX/QCR9 like	-	Family
AA [auth Q]	PF02320	Ubiquinol-cytochrome C reductase hinge protein (UCR_hinge)	Ubiquinol-cytochrome C reductase hinge protein	-	Family
DA [auth T]	PF05365	Ubiquinol-cytochrome C reductase, UQCRX/QCR9 like (UCR_UQCRX_QCR9)	Ubiquinol-cytochrome C reductase, UQCRX/QCR9 like	-	Family
EA [auth U]	PF09796	Ubiquinol-cytochrome-c reductase complex subunit (QCR10) (QCR10)	Ubiquinol-cytochrome-c reductase complex subunit (QCR10)	-	Family
FA [auth V]	PF09796	Ubiquinol-cytochrome-c reductase complex subunit (QCR10) (QCR10)	Ubiquinol-cytochrome-c reductase complex subunit (QCR10)	-	Family
C [auth c]	PF00510	Cytochrome c oxidase subunit III (COX3)	Cytochrome c oxidase subunit III	-	Family
D [auth d]	PF01215	Cytochrome c oxidase subunit Vb (COX5B)	Cytochrome c oxidase subunit Vb	-	Domain
E [auth e]	PF02936	Cytochrome c oxidase subunit IV (COX4)	Cytochrome c oxidase subunit IV	-	Family
F [auth f]	PF02284	Cytochrome c oxidase subunit Va (COX5A)	Cytochrome c oxidase subunit Va	Cytochrome c oxidase, a 13 sub-unit complex, EC:1.9.3.1 is the terminal oxidase in the mitochondrial electron transport chain. This family is composed of cytochrome c oxidase subunit Va.	Domain
G [auth g]	PF02238	Cytochrome c oxidase subunit VII (COX7a)	Cytochrome c oxidase subunit VII	-	Family
H [auth h]	PF02935	Cytochrome c oxidase subunit VIIc (COX7C)	Cytochrome c oxidase subunit VIIc	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth a]	Cytochrome c oxidase subunit 1	monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity cytochrome-c oxidase activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreductase activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity inorganic molecular entity transmembrane transporter activity oxidoreductase activity, acting on a heme group of donors inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity cytochrome-c oxidase activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreductase activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity inorganic molecular entity transmembrane transporter activity oxidoreductase activity, acting on a heme group of donors inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity catalytic activity binding organic cyclic compound binding tetrapyrrole binding heme binding cation binding ion binding metal ion binding small molecule binding	aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, cytochrome c to oxygen respiratory electron transport chain metabolic process cellular process mitochondrial ATP synthesis coupled electron transport aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, cytochrome c to oxygen respiratory electron transport chain metabolic process cellular process mitochondrial ATP synthesis coupled electron transport electron transport coupled proton transport transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization energy coupled proton transmembrane transport, against electrochemical gradient monoatomic ion transport monoatomic cation transport	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane membrane organelle envelope mitochondrial envelope organelle membrane respiratory chain complex membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane membrane organelle envelope mitochondrial envelope organelle membrane respiratory chain complex protein-containing complex organelle inner membrane cytochrome complex mitochondrial respirasome membrane protein complex mitochondrial protein-containing complex catalytic complex respiratory chain complex IV mitochondrial respiratory chain complex IV mitochondrial inner membrane inner mitochondrial membrane protein complex respirasome
J [auth j]	Cytochrome c oxidase subunit 12, mitochondrial	oxidoreductase activity catalytic activity	transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, cytochrome c to oxygen respiratory electron transport chain metabolic process mitochondrial ATP synthesis coupled electron transport respiratory chain complex IV assembly cytochrome complex assembly protein-containing complex organization mitochondrial cytochrome c oxidase 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 mitochondrion organization	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle respiratory chain complex protein-containing complex mitochondrial membrane organelle inner membrane cytochrome complex mitochondrial respirasome membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle respiratory chain complex protein-containing complex mitochondrial membrane organelle inner membrane cytochrome complex mitochondrial respirasome membrane protein complex organelle envelope mitochondrial protein-containing complex catalytic complex membrane respiratory chain complex IV mitochondrial respiratory chain complex IV mitochondrial inner membrane inner mitochondrial membrane protein complex mitochondrial envelope respirasome organelle membrane mitochondrial intermembrane space membrane-enclosed lumen intracellular organelle lumen organelle envelope lumen organelle lumen
K [auth k]	Cytochrome c oxidase subunit 13, mitochondrial	oxidoreductase activity catalytic activity enzyme regulator activity molecular function regulator activity	transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, cytochrome c to oxygen respiratory electron transport chain metabolic process mitochondrial ATP synthesis coupled electron transport cellular component organization cellular component biogenesis organelle organization cellular component assembly mitochondrial respirasome assembly protein-containing complex organization protein-containing complex assembly cellular component organization or biogenesis mitochondrion organization	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle respiratory chain complex protein-containing complex mitochondrial membrane organelle inner membrane cytochrome complex mitochondrial respirasome membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle respiratory chain complex protein-containing complex mitochondrial membrane organelle inner membrane cytochrome complex mitochondrial respirasome membrane protein complex organelle envelope mitochondrial protein-containing complex catalytic complex membrane respiratory chain complex IV mitochondrial respiratory chain complex IV mitochondrial inner membrane inner mitochondrial membrane protein complex mitochondrial envelope respirasome organelle membrane
L [auth m]	Cytochrome c oxidase subunit 26, mitochondrial	-	-	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane respiratory chain complex protein-containing complex cytochrome complex mitochondrial respirasome membrane protein complex mitochondrial protein-containing complex catalytic complex respiratory chain complex IV mitochondrial respiratory chain complex IV inner mitochondrial membrane protein complex respirasome
M [auth A], V [auth L]	Cytochrome b-c1 complex subunit 1, mitochondrial	peptidase activity catalytic activity, acting on a protein metalloendopeptidase activity hydrolase activity metallopeptidase activity catalytic activity endopeptidase activity cation binding ion binding binding metal ion binding small molecule binding	transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process 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 mitochondrial ATP synthesis coupled electron transport protein localization establishment of protein localization cellular localization cellular biosynthetic process protein targeting protein processing involved in protein targeting to mitochondrion protein maturation organic substance metabolic process proteolysis cellular macromolecule localization organic substance biosynthetic process protein metabolic process organonitrogen compound metabolic process primary metabolic process gene expression macromolecule biosynthetic process establishment of protein localization to organelle mitochondrial protein processing biosynthetic process macromolecule localization protein localization to organelle protein localization to mitochondrion protein targeting to mitochondrion protein processing macromolecule metabolic process establishment of protein localization to mitochondrion	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane respiratory chain complex protein-containing complex mitochondrial respiratory chain complex III cytochrome complex mitochondrial respirasome membrane protein complex transporter complex respiratory chain complex III oxidoreductase complex mitochondrial protein-containing complex catalytic complex inner mitochondrial membrane protein complex transmembrane transporter complex respirasome
N [auth B], W [auth M]	Cytochrome b-c1 complex subunit 2, mitochondrial	peptidase activity catalytic activity, acting on a protein metalloendopeptidase activity hydrolase activity metallopeptidase activity catalytic activity endopeptidase activity cation binding ion binding binding metal ion binding small molecule binding	transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process 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 mitochondrial ATP synthesis coupled electron transport organic substance metabolic process organonitrogen compound metabolic process proteolysis primary metabolic process protein metabolic process macromolecule metabolic process	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane respiratory chain complex protein-containing complex mitochondrial respiratory chain complex III cytochrome complex mitochondrial respirasome membrane protein complex transporter complex respiratory chain complex III oxidoreductase complex mitochondrial protein-containing complex catalytic complex inner mitochondrial membrane protein complex transmembrane transporter complex respirasome mitochondrial crista
O [auth C], X [auth N]	Cytochrome b	monoatomic cation transmembrane transporter activity proton transmembrane transporter activity oxidoreductase activity, acting on diphenols and related substances as donors primary active transmembrane transporter activity oxidoreductase activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity ubiquinol-cytochrome-c reductase activity catalytic activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity oxidoreductase activity, acting on diphenols and related substances as donors primary active transmembrane transporter activity oxidoreductase activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity ubiquinol-cytochrome-c reductase activity catalytic 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 cellular metabolic process 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 intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane respiratory chain complex protein-containing complex mitochondrial respiratory chain complex III cytochrome complex mitochondrial respirasome membrane protein complex transporter complex respiratory chain complex III oxidoreductase complex mitochondrial protein-containing complex catalytic complex inner mitochondrial membrane protein complex transmembrane transporter complex respirasome
P [auth D], Y [auth O]	Cytochrome c1, heme protein, mitochondrial	monoatomic cation transmembrane transporter activity proton transmembrane transporter activity oxidoreductase activity, acting on diphenols and related substances as donors primary active transmembrane transporter activity oxidoreductase activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity ubiquinol-cytochrome-c reductase activity catalytic activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity oxidoreductase activity, acting on diphenols and related substances as donors primary active transmembrane transporter activity oxidoreductase activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity ubiquinol-cytochrome-c reductase activity catalytic activity transmembrane transporter activity binding organic cyclic compound binding tetrapyrrole binding heme binding cation binding ion binding metal ion binding small molecule binding	aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process 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 intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane respiratory chain complex protein-containing complex mitochondrial respiratory chain complex III cytochrome complex mitochondrial respirasome membrane protein complex transporter complex respiratory chain complex III oxidoreductase complex mitochondrial protein-containing complex catalytic complex inner mitochondrial membrane protein complex transmembrane transporter complex respirasome cytosol mitochondrial intermembrane space membrane-enclosed lumen intracellular organelle lumen organelle envelope lumen organelle lumen
Q [auth E], Z [auth P]	Cytochrome b-c1 complex subunit Rieske, mitochondrial	oxidoreductase activity catalytic activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity oxidoreductase activity, acting on diphenols and related substances as donors primary active transmembrane transporter activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity oxidoreductase activity catalytic activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity oxidoreductase activity, acting on diphenols and related substances as donors primary active transmembrane transporter activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity ubiquinol-cytochrome-c reductase activity transmembrane transporter 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	aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process 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 intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane respiratory chain complex protein-containing complex mitochondrial respiratory chain complex III cytochrome complex mitochondrial respirasome membrane protein complex transporter complex respiratory chain complex III oxidoreductase complex mitochondrial protein-containing complex catalytic complex inner mitochondrial membrane protein complex transmembrane transporter complex respirasome
R [auth F]	Cytochrome b-c1 complex subunit 6, mitochondrial	-	transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process 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 mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane nucleus membrane-enclosed lumen intracellular organelle lumen organelle lumen nuclear periphery nuclear lumen respiratory chain complex protein-containing complex mitochondrial respiratory chain complex III cytochrome complex mitochondrial respirasome membrane protein complex transporter complex respiratory chain complex III oxidoreductase complex mitochondrial protein-containing complex catalytic complex inner mitochondrial membrane protein complex transmembrane transporter complex respirasome mitochondrial intermembrane space organelle envelope lumen
BA [auth R], S [auth G]	Cytochrome b-c1 complex subunit 7, mitochondrial	-	transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process 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 mitochondrial ATP synthesis coupled electron transport cytochrome complex assembly protein-containing complex organization mitochondrial respiratory chain complex III assembly cellular component organization cellular component biogenesis organelle organization cellular component assembly respiratory chain complex III assembly mitochondrial respiratory chain complex assembly protein-containing complex assembly cellular component organization or biogenesis mitochondrion organization	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane respiratory chain complex protein-containing complex mitochondrial respiratory chain complex III cytochrome complex mitochondrial respirasome membrane protein complex transporter complex respiratory chain complex III oxidoreductase complex mitochondrial protein-containing complex catalytic complex inner mitochondrial membrane protein complex transmembrane transporter complex respirasome side of membrane lumenal side of membrane matrix side of mitochondrial inner membrane
B [auth b]	Cytochrome c oxidase subunit 2	monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity cytochrome-c oxidase activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreductase activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity inorganic molecular entity transmembrane transporter activity oxidoreductase activity, acting on a heme group of donors inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity cytochrome-c oxidase activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreductase activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity inorganic molecular entity transmembrane transporter activity oxidoreductase activity, acting on a heme group of donors inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity catalytic activity cation binding transition metal ion binding copper ion 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 cellular metabolic process ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, cytochrome c to oxygen respiratory electron transport chain metabolic process cellular process mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle respiratory chain complex protein-containing complex mitochondrial membrane organelle inner membrane cytochrome complex mitochondrial respirasome membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle respiratory chain complex protein-containing complex mitochondrial membrane organelle inner membrane cytochrome complex mitochondrial respirasome membrane protein complex organelle envelope mitochondrial protein-containing complex catalytic complex membrane respiratory chain complex IV mitochondrial respiratory chain complex IV mitochondrial inner membrane inner mitochondrial membrane protein complex mitochondrial envelope respirasome organelle membrane
CA [auth S], T [auth H]	Cytochrome b-c1 complex subunit 8, mitochondrial	-	aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process 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 intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane respiratory chain complex protein-containing complex mitochondrial respiratory chain complex III cytochrome complex mitochondrial respirasome membrane protein complex transporter complex respiratory chain complex III oxidoreductase complex mitochondrial protein-containing complex catalytic complex inner mitochondrial membrane protein complex transmembrane transporter complex respirasome
U [auth I]	Cytochrome b-c1 complex subunit 9, mitochondrial	-	transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process 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 mitochondrial ATP synthesis coupled electron transport cytochrome complex assembly protein-containing complex organization mitochondrial respiratory chain complex III assembly cellular component organization cellular component biogenesis organelle organization cellular component assembly respiratory chain complex III assembly mitochondrial respiratory chain complex assembly protein-containing complex assembly cellular component organization or biogenesis mitochondrion organization	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane respiratory chain complex protein-containing complex mitochondrial respiratory chain complex III cytochrome complex mitochondrial respirasome membrane protein complex transporter complex respiratory chain complex III oxidoreductase complex mitochondrial protein-containing complex catalytic complex inner mitochondrial membrane protein complex transmembrane transporter complex respirasome
AA [auth Q]	Cytochrome b-c1 complex subunit 6, mitochondrial	-	transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process 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 mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane nucleus membrane-enclosed lumen intracellular organelle lumen organelle lumen nuclear periphery nuclear lumen respiratory chain complex protein-containing complex mitochondrial respiratory chain complex III cytochrome complex mitochondrial respirasome membrane protein complex transporter complex respiratory chain complex III oxidoreductase complex mitochondrial protein-containing complex catalytic complex inner mitochondrial membrane protein complex transmembrane transporter complex respirasome mitochondrial intermembrane space organelle envelope lumen
DA [auth T]	Cytochrome b-c1 complex subunit 9, mitochondrial	-	transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process 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 mitochondrial ATP synthesis coupled electron transport cytochrome complex assembly protein-containing complex organization mitochondrial respiratory chain complex III assembly cellular component organization cellular component biogenesis organelle organization cellular component assembly respiratory chain complex III assembly mitochondrial respiratory chain complex assembly protein-containing complex assembly cellular component organization or biogenesis mitochondrion organization	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane respiratory chain complex protein-containing complex mitochondrial respiratory chain complex III cytochrome complex mitochondrial respirasome membrane protein complex transporter complex respiratory chain complex III oxidoreductase complex mitochondrial protein-containing complex catalytic complex inner mitochondrial membrane protein complex transmembrane transporter complex respirasome
EA [auth U]	Cytochrome b-c1 complex subunit 10, mitochondrial	-	transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process 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 mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane respiratory chain complex protein-containing complex mitochondrial respiratory chain complex III cytochrome complex mitochondrial respirasome membrane protein complex transporter complex respiratory chain complex III oxidoreductase complex mitochondrial protein-containing complex catalytic complex inner mitochondrial membrane protein complex transmembrane transporter complex respirasome
FA [auth V]	Cytochrome b-c1 complex subunit 10, mitochondrial	-	transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process 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 mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane respiratory chain complex protein-containing complex mitochondrial respiratory chain complex III cytochrome complex mitochondrial respirasome membrane protein complex transporter complex respiratory chain complex III oxidoreductase complex mitochondrial protein-containing complex catalytic complex inner mitochondrial membrane protein complex transmembrane transporter complex respirasome
C [auth c]	Cytochrome c oxidase subunit 3	monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity cytochrome-c oxidase activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreductase activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity inorganic molecular entity transmembrane transporter activity oxidoreductase activity, acting on a heme group of donors inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity cytochrome-c oxidase activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreductase activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity inorganic molecular entity transmembrane transporter activity oxidoreductase activity, acting on a heme group of donors inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity catalytic activity	aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, cytochrome c to oxygen respiratory electron transport chain metabolic process cellular process mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle respiratory chain complex protein-containing complex mitochondrial membrane organelle inner membrane cytochrome complex mitochondrial respirasome membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle respiratory chain complex protein-containing complex mitochondrial membrane organelle inner membrane cytochrome complex mitochondrial respirasome membrane protein complex organelle envelope mitochondrial protein-containing complex catalytic complex membrane respiratory chain complex IV mitochondrial respiratory chain complex IV mitochondrial inner membrane inner mitochondrial membrane protein complex mitochondrial envelope respirasome organelle membrane
D [auth d]	Cytochrome c oxidase subunit 4, mitochondrial	oxidoreductase activity catalytic activity cation binding transition metal ion binding zinc ion binding ion binding binding metal ion binding small molecule binding	transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, cytochrome c to oxygen respiratory electron transport chain metabolic process mitochondrial ATP synthesis coupled electron transport respiratory chain complex IV assembly cytochrome complex assembly protein-containing complex organization mitochondrial cytochrome c oxidase 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 mitochondrion organization	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane respiratory chain complex protein-containing complex cytochrome complex mitochondrial respirasome membrane protein complex mitochondrial protein-containing complex catalytic complex respiratory chain complex IV mitochondrial respiratory chain complex IV inner mitochondrial membrane protein complex respirasome mitochondrial intermembrane space membrane-enclosed lumen intracellular organelle lumen organelle envelope lumen organelle lumen
E [auth e]	Cytochrome c oxidase subunit 5A, mitochondrial	oxidoreductase activity catalytic activity	transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, cytochrome c to oxygen respiratory electron transport chain metabolic process mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane respiratory chain complex protein-containing complex cytochrome complex mitochondrial respirasome membrane protein complex mitochondrial protein-containing complex catalytic complex respiratory chain complex IV mitochondrial respiratory chain complex IV inner mitochondrial membrane protein complex respirasome mitochondrial intermembrane space membrane-enclosed lumen intracellular organelle lumen organelle envelope lumen organelle lumen
F [auth f]	Cytochrome c oxidase subunit 6, mitochondrial	oxidoreductase activity catalytic activity cation binding ion binding binding metal ion binding small molecule binding	transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, cytochrome c to oxygen respiratory electron transport chain metabolic process mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle respiratory chain complex protein-containing complex mitochondrial membrane organelle inner membrane cytochrome complex mitochondrial respirasome membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle respiratory chain complex protein-containing complex mitochondrial membrane organelle inner membrane cytochrome complex mitochondrial respirasome membrane protein complex organelle envelope mitochondrial protein-containing complex catalytic complex membrane respiratory chain complex IV mitochondrial respiratory chain complex IV mitochondrial inner membrane inner mitochondrial membrane protein complex mitochondrial envelope respirasome organelle membrane
G [auth g]	Cytochrome c oxidase subunit 7, mitochondrial	oxidoreductase activity catalytic activity	transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, cytochrome c to oxygen respiratory electron transport chain metabolic process mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle respiratory chain complex protein-containing complex mitochondrial membrane organelle inner membrane cytochrome complex mitochondrial respirasome membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle respiratory chain complex protein-containing complex mitochondrial membrane organelle inner membrane cytochrome complex mitochondrial respirasome membrane protein complex organelle envelope mitochondrial protein-containing complex catalytic complex membrane respiratory chain complex IV mitochondrial respiratory chain complex IV mitochondrial inner membrane inner mitochondrial membrane protein complex mitochondrial envelope respirasome organelle membrane
H [auth h]	Cytochrome c oxidase subunit 8, mitochondrial	oxidoreductase activity catalytic activity	transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, cytochrome c to oxygen respiratory electron transport chain metabolic process mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle respiratory chain complex protein-containing complex mitochondrial membrane organelle inner membrane cytochrome complex mitochondrial respirasome membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle respiratory chain complex protein-containing complex mitochondrial membrane organelle inner membrane cytochrome complex mitochondrial respirasome membrane protein complex organelle envelope mitochondrial protein-containing complex catalytic complex membrane respiratory chain complex IV mitochondrial respiratory chain complex IV mitochondrial inner membrane inner mitochondrial membrane protein complex mitochondrial envelope respirasome organelle membrane
I [auth i]	Cytochrome c oxidase subunit 9, mitochondrial	oxidoreductase activity catalytic activity	transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, cytochrome c to oxygen respiratory electron transport chain metabolic process mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle respiratory chain complex protein-containing complex mitochondrial membrane organelle inner membrane cytochrome complex mitochondrial respirasome membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle respiratory chain complex protein-containing complex mitochondrial membrane organelle inner membrane cytochrome complex mitochondrial respirasome membrane protein complex organelle envelope mitochondrial protein-containing complex catalytic complex membrane respiratory chain complex IV mitochondrial respiratory chain complex IV mitochondrial inner membrane inner mitochondrial membrane protein complex mitochondrial envelope respirasome organelle membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth a]	IPR036927	Cytochrome c oxidase-like, subunit I superfamily	Homologous Superfamily
A [auth a]	IPR000883	Cytochrome c oxidase subunit I	Family
A [auth a]	IPR023615	Cytochrome c oxidase, subunit I, copper-binding site	Binding Site
A [auth a]	IPR023616	Cytochrome c oxidase-like, subunit I domain	Domain
A [auth a]	IPR033944	Cytochrome c oxidase subunit I domain	Domain
J [auth j]	IPR036549	Cytochrome c oxidase, subunit VIb superfamily	Homologous Superfamily
J [auth j]	IPR048280	Cytochrome oxidase c subunit VIb-like	Family
J [auth j]	IPR003213	Cytochrome c oxidase, subunit VIb	Family
K [auth k]	IPR018507	Cytochrome c oxidase, subunit VIa, conserved site	Conserved Site
K [auth k]	IPR036418	Cytochrome c oxidase, subunit VIa superfamily	Homologous Superfamily
K [auth k]	IPR001349	Cytochrome c oxidase, subunit VIa	Family
M [auth A], V [auth L]	IPR007863	Peptidase M16, C-terminal	Domain
M [auth A], V [auth L]	IPR011249	Metalloenzyme, LuxS/M16 peptidase-like	Homologous Superfamily
M [auth A], V [auth L]	IPR011765	Peptidase M16, N-terminal	Domain
N [auth B], W [auth M]	IPR011249	Metalloenzyme, LuxS/M16 peptidase-like	Homologous Superfamily
N [auth B], W [auth M]	IPR011765	Peptidase M16, N-terminal	Domain
N [auth B], W [auth M]	IPR001431	Peptidase M16, zinc-binding site	Binding Site
O [auth C], X [auth N]	IPR036150	Cytochrome b/b6, C-terminal domain superfamily	Homologous Superfamily
O [auth C], X [auth N]	IPR027387	Cytochrome b/b6-like domain superfamily	Homologous Superfamily
O [auth C], X [auth N]	IPR048260	Cytochrome b/b6, C-terminal domain, eukaryotic/bacterial	Domain
O [auth C], X [auth N]	IPR016174	Di-haem cytochrome, transmembrane	Homologous Superfamily
O [auth C], X [auth N]	IPR005798	Cytochrome b/b6, C-terminal	Domain
O [auth C], X [auth N]	IPR048259	Cytochrome b/b6, N-terminal domain, eukaryotic/bacterial	Domain
O [auth C], X [auth N]	IPR030689	Cytochrome b	Family
O [auth C], X [auth N]	IPR005797	Cytochrome b/b6, N-terminal domain	Domain
P [auth D], Y [auth O]	IPR036909	Cytochrome c-like domain superfamily	Homologous Superfamily
P [auth D], Y [auth O]	IPR002326	Cytochrome c1	Family
P [auth D], Y [auth O]	IPR009056	Cytochrome c-like domain	Domain
P [auth D], Y [auth O]	IPR021157	Cytochrome c1, transmembrane anchor, C-terminal	Homologous Superfamily
Q [auth E], Z [auth P]	IPR036922	Rieske [2Fe-2S] iron-sulphur domain superfamily	Homologous Superfamily
Q [auth E], Z [auth P]	IPR014349	Rieske iron-sulphur protein	Family
Q [auth E], Z [auth P]	IPR004192	Cytochrome b-c1 complex subunit Rieske, transmembrane domain	Domain
Q [auth E], Z [auth P]	IPR017941	Rieske [2Fe-2S] iron-sulphur domain	Domain
Q [auth E], Z [auth P]	IPR005805	Rieske iron-sulphur protein, C-terminal	Domain
Q [auth E], Z [auth P]	IPR037008	Cytochrome bc1 complex subunit Rieske, transmembrane domain superfamily	Homologous Superfamily
Q [auth E], Z [auth P]	IPR006317	Ubiquinol-cytochrome c reductase, iron-sulphur subunit	Domain
R [auth F]	IPR023184	Ubiquinol-cytochrome C reductase hinge domain	Domain
R [auth F]	IPR036811	Ubiquinol-cytochrome C reductase hinge domain superfamily	Homologous Superfamily
BA [auth R], S [auth G]	IPR003197	Cytochrome b-c1 complex subunit 7	Family
BA [auth R], S [auth G]	IPR036544	Cytochrome b-c1 complex subunit 7 superfamily	Homologous Superfamily
B [auth b]	IPR011759	Cytochrome C oxidase subunit II, transmembrane domain	Domain
B [auth b]	IPR036257	Cytochrome C oxidase subunit II, transmembrane domain superfamily	Homologous Superfamily
B [auth b]	IPR034210	Cytochrome c oxidase subunit 2, C-terminal	Domain
B [auth b]	IPR045187	Cytochrome c/quinol oxidase subunit II	Family
B [auth b]	IPR002429	Cytochrome c oxidase subunit II-like C-terminal	Domain
B [auth b]	IPR008972	Cupredoxin	Homologous Superfamily
B [auth b]	IPR001505	Copper centre Cu(A)	Binding Site
B [auth b]	IPR014222	Cytochrome c oxidase, subunit II	Domain
CA [auth S], T [auth H]	IPR004205	Cytochrome b-c1 complex subunit 8	Family
CA [auth S], T [auth H]	IPR036642	Cytochrome b-c1 complex subunit 8 superfamily	Homologous Superfamily
U [auth I]	IPR008027	Cytochrome b-c1 complex subunit 9	Family
U [auth I]	IPR036656	Cytochrome b-c1 complex subunit 9 superfamily	Homologous Superfamily
AA [auth Q]	IPR023184	Ubiquinol-cytochrome C reductase hinge domain	Domain
AA [auth Q]	IPR036811	Ubiquinol-cytochrome C reductase hinge domain superfamily	Homologous Superfamily
DA [auth T]	IPR008027	Cytochrome b-c1 complex subunit 9	Family
DA [auth T]	IPR036656	Cytochrome b-c1 complex subunit 9 superfamily	Homologous Superfamily
EA [auth U]	IPR019182	Cytochrome b-c1 complex subunit 10, fungi	Family
FA [auth V]	IPR019182	Cytochrome b-c1 complex subunit 10, fungi	Family
C [auth c]	IPR035973	Cytochrome c oxidase subunit III-like superfamily	Homologous Superfamily
C [auth c]	IPR013833	Cytochrome c oxidase, subunit III, 4-helical bundle	Homologous Superfamily
C [auth c]	IPR000298	Cytochrome c oxidase subunit III-like	Domain
C [auth c]	IPR033945	Cytochrome c oxidase subunit III domain	Domain
C [auth c]	IPR024791	Cytochrome c oxidase subunit III	Family
D [auth d]	IPR002124	Cytochrome c oxidase, subunit Vb	Family
D [auth d]	IPR036972	Cytochrome c oxidase, subunit Vb superfamily	Homologous Superfamily
E [auth e]	IPR004203	Cytochrome c oxidase subunit IV family	Family
E [auth e]	IPR036639	Cytochrome c oxidase subunit IV superfamily	Homologous Superfamily
F [auth f]	IPR003204	Cytochrome c oxidase, subunit Va/VI	Family
F [auth f]	IPR036545	Cytochrome c oxidase, subunit Va/VI superfamily	Homologous Superfamily
G [auth g]	IPR014367	Cytochrome c oxidase subunit VII, budding yeast	Family
G [auth g]	IPR039297	Cytochrome c oxidase subunit VII	Family
H [auth h]	IPR036636	Cytochrome c oxidase subunit VIIc superfamily	Homologous Superfamily
H [auth h]	IPR004202	Cytochrome c oxidase subunit VIIc	Family
I [auth i]	IPR014368	Cytochrome c oxidase, subunit VIIa, fungal	Family

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A [auth a], AA [auth Q], B [auth b], BA [auth R], C [auth c] A [auth a], AA [auth Q], B [auth b], BA [auth R], C [auth c], CA [auth S], D [auth d], DA [auth T], E [auth e], EA [auth U], F [auth f], FA [auth V], G [auth g], H [auth h], I [auth i], J [auth j], K [auth k], L [auth m], M [auth A], N [auth B], O [auth C], P [auth D], Q [auth E], R [auth F], S [auth G], T [auth H], U [auth I], V [auth L], W [auth M], X [auth N], Y [auth O], Z [auth P]	OPM	Transmembrane	Alpha-helical polytopic	Electron transport chain complex IV (cytochrome c oxidase)	Respiratory supercomplexes III-IV

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A [auth a], AA [auth Q], B [auth b], BA [auth R], C [auth c] A [auth a], AA [auth Q], B [auth b], BA [auth R], C [auth c], CA [auth S], D [auth d], DA [auth T], E [auth e], EA [auth U], F [auth f], FA [auth V], G [auth g], H [auth h], I [auth i], J [auth j], K [auth k], L [auth m], M [auth A], N [auth B], O [auth C], P [auth D], Q [auth E], R [auth F], S [auth G], T [auth H], U [auth I], V [auth L], W [auth M], X [auth N], Y [auth O], Z [auth P]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A [auth a], AA [auth Q], B [auth b], BA [auth R], C [auth c] A [auth a], AA [auth Q], B [auth b], BA [auth R], C [auth c], CA [auth S], D [auth d], DA [auth T], E [auth e], EA [auth U], F [auth f], FA [auth V], G [auth g], H [auth h], I [auth i], J [auth j], K [auth k], L [auth m], M [auth A], N [auth B], O [auth C], P [auth D], Q [auth E], R [auth F], S [auth G], T [auth H], U [auth I], V [auth L], W [auth M], X [auth N], Y [auth O], Z [auth P]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Electron Transport Chain Supercomplexes (Respirasome)	CIII₂/CIV respiratory supercomplex