Annotations: 1BGY

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
R [auth S]	d1bgys_	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)	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
G	d1bgyg_	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)	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
S [auth T]	d1bgyt_	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)	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
H	d1bgyh_	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)	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
U [auth V]	d1bgyv_	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)	Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
J	d1bgyj_	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)	Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
V [auth W]	d1bgyw_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Subunit XI (6.4 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	Subunit XI (6.4 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	Subunit XI (6.4 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
K	d1bgyk_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Subunit XI (6.4 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	Subunit XI (6.4 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	Subunit XI (6.4 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
T [auth U]	d1bgyu_	Alpha and beta proteins (a+b)	Non-globular alpha+beta subunits of globular proteins	Non-globular alpha+beta subunits of globular proteins	Ubiquinol-cytochrome c reductase 8 kDa protein	automated matches	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
I	d1bgyi_	Alpha and beta proteins (a+b)	Non-globular alpha+beta subunits of globular proteins	Non-globular alpha+beta subunits of globular proteins	Ubiquinol-cytochrome c reductase 8 kDa protein	automated matches	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
Q [auth R]	d1bgyr_	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)	14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
F	d1bgyf_	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)	14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
P [auth Q]	d1bgyq1	All beta proteins	ISP domain	ISP domain	Rieske iron-sulfur protein (ISP)	ISP subunit of the mitochondrial cytochrome bc1-complex, water-soluble domain	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
P [auth Q]	d1bgyq2	Membrane and cell surface proteins and peptides	Single transmembrane helix	ISP transmembrane anchor	ISP transmembrane anchor	Iron-sulfur subunit (ISP) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane region	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
E	d1bgye_	Membrane and cell surface proteins and peptides	Single transmembrane helix	ISP transmembrane anchor	ISP transmembrane anchor	Iron-sulfur subunit (ISP) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane region	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
O [auth P]	d1bgyp2	All alpha proteins	Cytochrome c	Cytochrome c	Cytochrome bc1 domain	Cytochrome bc1 domain	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
O [auth P]	d1bgyp3	Membrane and cell surface proteins and peptides	Single transmembrane helix	Cytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor	Cytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor	Cytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
D	d1bgyd2	All alpha proteins	Cytochrome c	Cytochrome c	Cytochrome bc1 domain	Cytochrome bc1 domain	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
D	d1bgyd3	Membrane and cell surface proteins and peptides	Single transmembrane helix	Cytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor	Cytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor	Cytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
N [auth O]	d1bgyo3	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)	Mitochondrial cytochrome b subunit, N-terminal domain	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
N [auth O]	d1bgyo2	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)	a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	Mitochondrial cytochrome b subunit, C-terminal domain	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
C	d1bgyc3	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)	Mitochondrial cytochrome b subunit, N-terminal domain	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
C	d1bgyc2	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)	a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	Mitochondrial cytochrome b subunit, C-terminal domain	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
M [auth N]	d1bgyn1	Alpha and beta proteins (a+b)	LuxS/MPP-like metallohydrolase	LuxS/MPP-like metallohydrolase	MPP-like	Cytochrome bc1 core subunit 2	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
B	d1bgyb1	Alpha and beta proteins (a+b)	LuxS/MPP-like metallohydrolase	LuxS/MPP-like metallohydrolase	MPP-like	Cytochrome bc1 core subunit 2	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
L [auth M]	d1bgym1	Alpha and beta proteins (a+b)	LuxS/MPP-like metallohydrolase	LuxS/MPP-like metallohydrolase	MPP-like	Cytochrome bc1 core subunit 1	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
A	d1bgya1	Alpha and beta proteins (a+b)	LuxS/MPP-like metallohydrolase	LuxS/MPP-like metallohydrolase	MPP-like	Cytochrome bc1 core subunit 1	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
R [auth S]	SCOP2B Superfamily	Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	8038274	3000770	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	8038274	3000770	SCOP2B (2022-06-29)
S [auth T]	SCOP2B Superfamily	Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	8038275	3000806	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	8038275	3000806	SCOP2B (2022-06-29)
U [auth V]	SCOP2B Superfamily	Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	8037844	3000779	SCOP2B (2022-06-29)
J	SCOP2B Superfamily	Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	8037844	3000779	SCOP2B (2022-06-29)
Q [auth R]	SCOP2B Superfamily	14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	8038272	3000797	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	8038272	3000797	SCOP2B (2022-06-29)
P [auth Q]	SCOP2B Superfamily	ISP domain	8038267	3000233	SCOP2B (2022-06-29)
P [auth Q]	SCOP2B Superfamily	ISP transmembrane anchor	8038269	3000753	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	ISP transmembrane anchor	8038269	3000753	SCOP2B (2022-06-29)
O [auth P]	SCOP2B Superfamily	Cytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor	8038268	3000762	SCOP2B (2022-06-29)
O [auth P]	SCOP2B Superfamily	Cytochrome c	8038266	3000815	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Cytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor	8038268	3000762	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Cytochrome c	8038266	3000815	SCOP2B (2022-06-29)
N [auth O]	SCOP2B Superfamily	a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	8038264	3000966	SCOP2B (2022-06-29)
N [auth O]	SCOP2B Superfamily	Transmembrane di-heme cytochromes	8038265	3000517	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	8038264	3000966	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Transmembrane di-heme cytochromes	8038265	3000517	SCOP2B (2022-06-29)
M [auth N]	SCOP2B Superfamily	LuxS/MPP-like metallohydrolase	8038260	3001831	SCOP2B (2022-06-29)
M [auth N]	SCOP2B Superfamily	LuxS/MPP-like metallohydrolase	8038263	3001831	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	LuxS/MPP-like metallohydrolase	8038260	3001831	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	LuxS/MPP-like metallohydrolase	8038263	3001831	SCOP2B (2022-06-29)
L [auth M]	SCOP2B Superfamily	LuxS/MPP-like metallohydrolase	8038258	3001831	SCOP2B (2022-06-29)
L [auth M]	SCOP2B Superfamily	LuxS/MPP-like metallohydrolase	8038259	3001831	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	LuxS/MPP-like metallohydrolase	8038258	3001831	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	LuxS/MPP-like metallohydrolase	8038259	3001831	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
R [auth S]	e1bgyS1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: C-terminal subdomain in Lon-related proteases catalytic domains	H: C-terminal subdomain in Lon-related proteases catalytic domains	T: Propep_M14	F:	ECOD (20:10:01)
G	e1bgyG1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: C-terminal subdomain in Lon-related proteases catalytic domains	H: C-terminal subdomain in Lon-related proteases catalytic domains	T: Propep_M14	F:	ECOD (20:10:01)
S [auth T]	e1bgyT1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: p53 tetramerization domain	H: p53 tetramerization domain	T: Cation_efflux	F:	ECOD (20:10:01)
H	e1bgyH1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: p53 tetramerization domain	H: p53 tetramerization domain	T: Cation_efflux	F:	ECOD (20:10:01)
U [auth V]	e1bgyV1	A: PBZ domain	X: PBZ domain	H: PBZ domain	T: PS-DH	F:	ECOD (20:10:01)
J	e1bgyJ1	A: PBZ domain	X: PBZ domain	H: PBZ domain	T: PS-DH	F:	ECOD (20:10:01)
V [auth W]	e1bgyW1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: C-terminal subdomain in Lon-related proteases catalytic domains	H: C-terminal subdomain in Lon-related proteases catalytic domains	T: Propep_M14	F:	ECOD (20:10:01)
K	e1bgyK1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: C-terminal subdomain in Lon-related proteases catalytic domains	H: C-terminal subdomain in Lon-related proteases catalytic domains	T: Propep_M14	F:	ECOD (20:10:01)
T [auth U]	e1bgyU1	A: Lipocalins/Streptavidin	X: Enterocin 7A and 7B	H: Enterocin 7A and 7B	T: TIL	F:	ECOD (20:10:01)
I	e1bgyI1	A: GIY-YIG endonuclease	X: GIY-YIG endonuclease	H: GIY-YIG endonuclease	T: GIY-YIG	F:	ECOD (20:10:01)
I	e1bgyI2	A: P-loop domains-like	X: Metalloproteases (zincins) catalytic domain	H: Metalloproteases (zincins) catalytic domain	T:	F:	ECOD (20:10:01)
Q [auth R]	e1bgyR1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: p53 tetramerization domain	H: p53 tetramerization domain	T: Cation_efflux	F:	ECOD (20:10:01)
F	e1bgyF1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: p53 tetramerization domain	H: p53 tetramerization domain	T: Cation_efflux	F:	ECOD (20:10:01)
P [auth Q]	e1bgyQ2	A: Rossmann-like	X: 26S proteasome subunit Rpn2 C-terminal domain	H: 26S proteasome subunit Rpn2 C-terminal domain	T: FAD_binding_3,NAD_binding_8	F:	ECOD (20:10:01)
P [auth Q]	e1bgyQ3	A: TIM beta/alpha-barrel	X: TIM barrels	H: TIM barrels	T: Gelsolin	F:	ECOD (20:10:01)
E	e1bgyE1	A: Rossmann-like	X: 26S proteasome subunit Rpn2 C-terminal domain	H: 26S proteasome subunit Rpn2 C-terminal domain	T: FAD_binding_3,NAD_binding_8	F:	ECOD (20:10:01)
O [auth P]	e1bgyP1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: p53 tetramerization domain	H: p53 tetramerization domain	T: Cation_efflux	F:	ECOD (20:10:01)
O [auth P]	e1bgyP2	A: UBC-like	X: UBC-like	H: Concanavalin A-like lectins/glucanases	T: EF-hand_1, EF-hand_7	F:	ECOD (20:10:01)
D	e1bgyD1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: p53 tetramerization domain	H: p53 tetramerization domain	T: Cation_efflux	F:	ECOD (20:10:01)
D	e1bgyD2	A: UBC-like	X: UBC-like	H: Concanavalin A-like lectins/glucanases	T: EF-hand_1, EF-hand_7	F:	ECOD (20:10:01)
N [auth O]	e1bgyO1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: p53 tetramerization domain	H: p53 tetramerization domain	T: Cation_efflux	F:	ECOD (20:10:01)
C	e1bgyC1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: p53 tetramerization domain	H: p53 tetramerization domain	T: Cation_efflux	F:	ECOD (20:10:01)
M [auth N]	e1bgyN1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: C-terminal subdomain in Lon-related proteases catalytic domains	H: C-terminal subdomain in Lon-related proteases catalytic domains	T: DUF3197	F:	ECOD (20:10:01)
B	e1bgyB1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: C-terminal subdomain in Lon-related proteases catalytic domains	H: C-terminal subdomain in Lon-related proteases catalytic domains	T: DUF3197	F:	ECOD (20:10:01)
L [auth M]	e1bgyM1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: C-terminal subdomain in Lon-related proteases catalytic domains	H: C-terminal subdomain in Lon-related proteases catalytic domains	T: DUF3197	F:	ECOD (20:10:01)
A	e1bgyA1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: C-terminal subdomain in Lon-related proteases catalytic domains	H: C-terminal subdomain in Lon-related proteases catalytic domains	T: DUF3197	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
R [auth S]	1.20.5.210	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Cytochrome b-c1 complex subunit 8	CATH (4.3.0)
G	1.20.5.210	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Cytochrome b-c1 complex subunit 8	CATH (4.3.0)
S [auth T]	1.10.287.20	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Ubiquinol-cytochrome C reductase hinge domain	CATH (4.3.0)
H	1.10.287.20	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Ubiquinol-cytochrome C reductase hinge domain	CATH (4.3.0)
U [auth V]	1.20.5.260	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Cytochrome b-c1 complex subunit 9	CATH (4.3.0)
J	1.20.5.260	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Cytochrome b-c1 complex subunit 9	CATH (4.3.0)
Q [auth R]	1.10.1090.10	Mainly Alpha	Orthogonal Bundle	Cytochrome Bc1 Complex	Chain F	CATH (4.3.0)
F	1.10.1090.10	Mainly Alpha	Orthogonal Bundle	Cytochrome Bc1 Complex	Chain F	CATH (4.3.0)
P [auth Q]	1.20.5.270	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Ubiquinol cytochrome reductase, transmembrane domain	CATH (4.3.0)
P [auth Q]	2.102.10.10	Mainly Beta	3-layer Sandwich	Rieske Iron-sulfur Protein	Rieske [2Fe-2S] iron-sulphur domain	CATH (4.3.0)
E	1.20.5.270	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Ubiquinol cytochrome reductase, transmembrane domain	CATH (4.3.0)
O [auth P]	1.20.5.100	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Cytochrome c1, transmembrane anchor, C-terminal	CATH (4.3.0)
O [auth P]	1.10.760.10	Mainly Alpha	Orthogonal Bundle	Cytochrome Bc1 Complex	Chain D, domain 2	CATH (4.3.0)
D	1.20.5.100	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Cytochrome c1, transmembrane anchor, C-terminal	CATH (4.3.0)
D	1.10.760.10	Mainly Alpha	Orthogonal Bundle	Cytochrome Bc1 Complex	Chain D, domain 2	CATH (4.3.0)
N [auth O]	1.20.810.10	Mainly Alpha	Up-down Bundle	Cytochrome Bc1 Complex	Chain C	CATH (4.3.0)
C	1.20.810.10	Mainly Alpha	Up-down Bundle	Cytochrome Bc1 Complex	Chain C	CATH (4.3.0)
M [auth N]	3.30.830.10	Alpha Beta	2-Layer Sandwich	Cytochrome Bc1 Complex	Chain A, domain 1	CATH (4.3.0)
B	3.30.830.10	Alpha Beta	2-Layer Sandwich	Cytochrome Bc1 Complex	Chain A, domain 1	CATH (4.3.0)
L [auth M]	3.30.830.10	Alpha Beta	2-Layer Sandwich	Cytochrome Bc1 Complex	Chain A, domain 1	CATH (4.3.0)
A	3.30.830.10	Alpha Beta	2-Layer Sandwich	Cytochrome Bc1 Complex	Chain A, domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
G, R [auth S]	PF02939	UcrQ family (UcrQ)	UcrQ family	-	Family
H, S [auth T]	PF02320	Ubiquinol-cytochrome C reductase hinge protein (UCR_hinge)	Ubiquinol-cytochrome C reductase hinge protein	The ubiquinol-cytochrome C reductase complex (cytochrome bc1 complex) is a respiratory multienzyme complex [1]. This Pfam family represents the 'hinge' protein of the complex which is thought to mediate formation of the cytochrome c1 and cytochrome c ...	The ubiquinol-cytochrome C reductase complex (cytochrome bc1 complex) is a respiratory multienzyme complex [1]. This Pfam family represents the 'hinge' protein of the complex which is thought to mediate formation of the cytochrome c1 and cytochrome c complex.	Domain
J, U [auth V]	PF05365	Cytochrome b-c1 complex subunit 9 (UCR_UQCRX_QCR9)	Cytochrome b-c1 complex subunit 9	-	Family
F, Q [auth R]	PF02271	Ubiquinol-cytochrome C reductase complex 14kD subunit (UCR_14kD)	Ubiquinol-cytochrome C reductase complex 14kD subunit	-	Family
E, P [auth Q]	PF02921	Ubiquinol cytochrome reductase transmembrane region (UCR_TM)	Ubiquinol cytochrome reductase transmembrane region	-	Family
E, P [auth Q]	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
D, O [auth P]	PF02167	Cytochrome C1 family (Cytochrom_C1)	Cytochrome C1 family	-	Family
C, N [auth O]	PF00032	Cytochrome b(C-terminal)/b6/petD (Cytochrom_B_C)	Cytochrome b(C-terminal)/b6/petD		Domain
C, N [auth O]	PF00033	Cytochrome b/b6/petB (Cytochrome_B)	Cytochrome b/b6/petB		Domain
B, M [auth N]	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
B, M [auth N]	PF00675	Insulinase (Peptidase family M16) (Peptidase_M16)	Insulinase (Peptidase family M16)	-	Family
A, L [auth M]	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
A, L [auth M]	PF00675	Insulinase (Peptidase family M16) (Peptidase_M16)	Insulinase (Peptidase family M16)	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
G, R [auth S]	CYTOCHROME BC1 COMPLEX	-	developmental process multicellular organismal process head development animal organ development brain development nervous system development cerebellar cortex development multicellular organism development cerebellar Purkinje cell layer development cerebellum development central nervous system development metencephalon development anatomical structure development hindbrain development developmental process multicellular organismal process head development animal organ development brain development nervous system development cerebellar cortex development multicellular organism development cerebellar Purkinje cell layer development cerebellum development central nervous system development metencephalon development anatomical structure development hindbrain development system development midbrain development aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, ubiquinol to cytochrome c respiratory electron transport chain metabolic process cellular process mitochondrial ATP synthesis coupled electron transport forebrain development pallium development telencephalon development hippocampus development limbic system development pyramidal neuron development cellular developmental process central nervous system neuron development cell development central nervous system neuron differentiation neurogenesis neuron differentiation cell differentiation forebrain generation of neurons generation of neurons forebrain neuron development neuron development forebrain neuron differentiation pyramidal neuron differentiation pons development hypothalamus development diencephalon development subthalamus development thalamus development	membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm organelle membrane respiratory chain complex protein-containing complex cytochrome complex catalytic complex transmembrane transporter complex membrane protein complex transporter complex respiratory chain complex III
H, S [auth T]	CYTOCHROME BC1 COMPLEX	-	aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, ubiquinol to cytochrome c respiratory electron transport chain metabolic process cellular process mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm organelle membrane respiratory chain complex protein-containing complex cytochrome complex catalytic complex transmembrane transporter complex membrane protein complex transporter complex respiratory chain complex III
J, U [auth V]	CYTOCHROME BC1 COMPLEX	-	aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, ubiquinol to cytochrome c respiratory electron transport chain metabolic process cellular process mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm organelle membrane respiratory chain complex protein-containing complex cytochrome complex catalytic complex transmembrane transporter complex membrane protein complex transporter complex respiratory chain complex III
K, V [auth W]	CYTOCHROME BC1 COMPLEX	-	aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, ubiquinol to cytochrome c respiratory electron transport chain metabolic process cellular process mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm organelle membrane respiratory chain complex protein-containing complex cytochrome complex catalytic complex transmembrane transporter complex membrane protein complex transporter complex respiratory chain complex III
I, T [auth U]	CYTOCHROME BC1 COMPLEX	oxidoreductase activity catalytic activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity quinol-cytochrome-c reductase activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity iron-sulfur cluster binding oxidoreductase activity catalytic activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity quinol-cytochrome-c reductase activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity 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 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 cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm 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 catalytic complex transmembrane transporter complex membrane protein complex transporter complex respiratory chain complex III
F, Q [auth R]	CYTOCHROME BC1 COMPLEX	-	aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, ubiquinol to cytochrome c respiratory electron transport chain metabolic process cellular process mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm organelle membrane respiratory chain complex protein-containing complex cytochrome complex catalytic complex transmembrane transporter complex membrane protein complex transporter complex respiratory chain complex III
E, P [auth Q]	CYTOCHROME BC1 COMPLEX	oxidoreductase activity catalytic activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity quinol-cytochrome-c reductase activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity iron-sulfur cluster binding oxidoreductase activity catalytic activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity quinol-cytochrome-c reductase activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity 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 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 cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm 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 catalytic complex transmembrane transporter complex membrane protein complex transporter complex respiratory chain complex III
D, O [auth P]	CYTOCHROME BC1 COMPLEX	monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity quinol-cytochrome-c reductase activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity binding tetrapyrrole binding heme binding monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity quinol-cytochrome-c reductase activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity 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 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 cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm 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 catalytic complex transmembrane transporter complex membrane protein complex transporter complex respiratory chain complex III
C, N [auth O]	CYTOCHROME BC1 COMPLEX	oxidoreductase activity catalytic activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity quinol-cytochrome-c reductase activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity binding oxidoreductase activity catalytic activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity quinol-cytochrome-c reductase activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity binding tetrapyrrole binding heme binding quinone binding ubiquinone 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 ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, ubiquinol to cytochrome c respiratory electron transport chain metabolic process cellular process mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm organelle membrane respiratory chain complex protein-containing complex cytochrome complex catalytic complex transmembrane transporter complex membrane protein complex transporter complex respiratory chain complex III
B, M [auth N]	CYTOCHROME BC1 COMPLEX	cation binding ion binding binding metal ion binding small molecule binding peptidase activity catalytic activity, acting on a protein metalloendopeptidase activity hydrolase activity metallopeptidase activity catalytic activity endopeptidase activity	proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm 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 catalytic complex transmembrane transporter complex membrane protein complex transporter complex respiratory chain complex III
A, L [auth M]	CYTOCHROME BC1 COMPLEX	cation binding ion binding binding metal ion binding small molecule binding	-	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane protein-containing complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
G, R [auth S]	IPR004205	Cytochrome b-c1 complex subunit 8	Family
G, R [auth S]	IPR036642	Cytochrome b-c1 complex subunit 8 superfamily	Homologous Superfamily
H, S [auth T]	IPR003422	Cytochrome b-c1 complex, subunit 6	Family
H, S [auth T]	IPR023184	Ubiquinol-cytochrome C reductase hinge domain	Domain
H, S [auth T]	IPR036811	Ubiquinol-cytochrome C reductase hinge domain superfamily	Homologous Superfamily
J, U [auth V]	IPR008027	Cytochrome b-c1 complex subunit 9	Family
J, U [auth V]	IPR036656	Cytochrome b-c1 complex subunit 9 superfamily	Homologous Superfamily
K, V [auth W]	IPR029027	Single alpha-helix domain superfamily	Homologous Superfamily
K, V [auth W]	IPR015089	Cytochrome b-c1 complex subunit 10	Family
I, T [auth U]	IPR036922	Rieske [2Fe-2S] iron-sulphur domain superfamily	Homologous Superfamily
I, T [auth U]	IPR014349	Rieske iron-sulphur protein	Family
I, T [auth U]	IPR011070	Globular protein, non-globular alpha/beta subunit	Homologous Superfamily
I, T [auth U]	IPR004192	Cytochrome b-c1 complex subunit Rieske, transmembrane domain	Domain
I, T [auth U]	IPR015248	Ubiquinol-cytochrome c reductase iron-sulphur subunit, N-terminal	Domain
I, T [auth U]	IPR017941	Rieske [2Fe-2S] iron-sulphur domain	Domain
I, T [auth U]	IPR005805	Rieske iron-sulphur protein, C-terminal	Domain
I, T [auth U]	IPR037008	Cytochrome bc1 complex subunit Rieske, transmembrane domain superfamily	Homologous Superfamily
I, T [auth U]	IPR006317	Ubiquinol-cytochrome c reductase, iron-sulphur subunit	Domain
F, Q [auth R]	IPR003197	Cytochrome b-c1 complex subunit 7	Family
F, Q [auth R]	IPR036544	Cytochrome b-c1 complex subunit 7 superfamily	Homologous Superfamily
E, P [auth Q]	IPR036922	Rieske [2Fe-2S] iron-sulphur domain superfamily	Homologous Superfamily
E, P [auth Q]	IPR014349	Rieske iron-sulphur protein	Family
E, P [auth Q]	IPR011070	Globular protein, non-globular alpha/beta subunit	Homologous Superfamily
E, P [auth Q]	IPR004192	Cytochrome b-c1 complex subunit Rieske, transmembrane domain	Domain
E, P [auth Q]	IPR015248	Ubiquinol-cytochrome c reductase iron-sulphur subunit, N-terminal	Domain
E, P [auth Q]	IPR017941	Rieske [2Fe-2S] iron-sulphur domain	Domain
E, P [auth Q]	IPR005805	Rieske iron-sulphur protein, C-terminal	Domain
E, P [auth Q]	IPR037008	Cytochrome bc1 complex subunit Rieske, transmembrane domain superfamily	Homologous Superfamily
E, P [auth Q]	IPR006317	Ubiquinol-cytochrome c reductase, iron-sulphur subunit	Domain
D, O [auth P]	IPR036909	Cytochrome c-like domain superfamily	Homologous Superfamily
D, O [auth P]	IPR002326	Cytochrome c1	Family
D, O [auth P]	IPR009056	Cytochrome c-like domain	Domain
D, O [auth P]	IPR021157	Cytochrome c1, transmembrane anchor, C-terminal	Homologous Superfamily
C, N [auth O]	IPR036150	Cytochrome b/b6, C-terminal domain superfamily	Homologous Superfamily
C, N [auth O]	IPR027387	Cytochrome b/b6-like domain superfamily	Homologous Superfamily
C, N [auth O]	IPR048260	Cytochrome b/b6, C-terminal domain, eukaryotic/bacterial	Domain
C, N [auth O]	IPR016174	Di-haem cytochrome, transmembrane	Homologous Superfamily
C, N [auth O]	IPR005798	Cytochrome b/b6, C-terminal	Domain
C, N [auth O]	IPR048259	Cytochrome b/b6, N-terminal domain, eukaryotic/bacterial	Domain
C, N [auth O]	IPR030689	Cytochrome b	Family
C, N [auth O]	IPR005797	Cytochrome b/b6, N-terminal domain	Domain
B, M [auth N]	IPR007863	Peptidase M16, C-terminal	Domain
B, M [auth N]	IPR011765	Peptidase M16, N-terminal	Domain
B, M [auth N]	IPR011249	Metalloenzyme, LuxS/M16 peptidase-like	Homologous Superfamily
B, M [auth N]	IPR050361	Mitochondrial Processing Peptidase/Ubiquinol-cytochrome c Reductase Complex	Family
B, M [auth N]	IPR001431	Peptidase M16, zinc-binding site	Binding Site
A, L [auth M]	IPR007863	Peptidase M16, C-terminal	Domain
A, L [auth M]	IPR011765	Peptidase M16, N-terminal	Domain
A, L [auth M]	IPR011249	Metalloenzyme, LuxS/M16 peptidase-like	Homologous Superfamily
A, L [auth M]	IPR050361	Mitochondrial Processing Peptidase/Ubiquinol-cytochrome c Reductase Complex	Family

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L [auth M], M [auth N], N [auth O], O [auth P], P [auth Q], Q [auth R], R [auth S], S [auth T], T [auth U], U [auth V], V [auth W]	OPM	Transmembrane	Alpha-helical polytopic	Electron transport chain complex III (bc1 and b6f) superfamily	Cytochrome bc1 and b6f complexes

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L [auth M], M [auth N], N [auth O], O [auth P], P [auth Q], Q [auth R], R [auth S], S [auth T], T [auth U], U [auth V], V [auth W]	PDBTM	Annotated as membrane protein by PDBTM