1qcr

CRYSTAL STRUCTURE OF BOVINE MITOCHONDRIAL CYTOCHROME BC1 COMPLEX, ALPHA CARBON ATOMS ONLY

Method: X-RAY DIFFRACTION

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1. Protein Identity and Related Structures Protein Identity & Related Structures

UBIQUINOL CYTOCHROME C OXIDOREDUCTASE

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 11	UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P23004） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00157） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00125） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13272） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00129） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13271） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00126） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13272） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00130） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P07552） PROTOPORPHYRIN IX CONTAINING FE × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	UCR1_BOVIN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–446； UniProt 35–480

UBIQUINOL CYTOCHROME C OXIDOREDUCTASE

OrganismNot specified

UniProt P23004

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 11	UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P31800） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00157） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00125） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13272） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00129） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13271） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00126） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13272） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00130） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P07552） PROTOPORPHYRIN IX CONTAINING FE × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	UCR2_BOVIN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–423； UniProt 31–453

UBIQUINOL CYTOCHROME C OXIDOREDUCTASE

OrganismNot specified

UniProt P00157

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 11	UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P31800） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P23004） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00125） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13272） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00129） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13271） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00126） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13272） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00130） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P07552） PROTOPORPHYRIN IX CONTAINING FE × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CYB_BOVIN
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain C； PDBConstruct 1–378； UniProt 2–379

UBIQUINOL CYTOCHROME C OXIDOREDUCTASE

OrganismNot specified

UniProt P00125

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 11	UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P31800） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P23004） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00157） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13272） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00129） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13271） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00126） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13272） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00130） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P07552） PROTOPORPHYRIN IX CONTAINING FE × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CY1_BOVIN
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain D； PDBConstruct 1–75； UniProt 167–241

UBIQUINOL CYTOCHROME C OXIDOREDUCTASE

OrganismNot specified

UniProt P13272

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 11	UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P31800） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P23004） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00157） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00125） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00129） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13271） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00126） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00130） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P07552） PROTOPORPHYRIN IX CONTAINING FE × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	UCRI_BOVIN
Isoform	—
PDB entities	5, 9
Chains and sequence ranges	Author chain E； PDBConstruct 1–196； UniProt 79–274 Author chain I； PDBConstruct 1–28； UniProt 21–48

UBIQUINOL CYTOCHROME C OXIDOREDUCTASE

OrganismNot specified

UniProt P00129

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 11	UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P31800） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P23004） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00157） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00125） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13272） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13271） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00126） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13272） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00130） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P07552） PROTOPORPHYRIN IX CONTAINING FE × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	UCR6_BOVIN
Isoform	—
PDB entities	6
Chains and sequence ranges	Author chain F； PDBConstruct 1–103； UniProt 8–110

UBIQUINOL CYTOCHROME C OXIDOREDUCTASE

OrganismNot specified

UniProt P13271

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 11	UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P31800） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P23004） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00157） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00125） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13272） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00129） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00126） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13272） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00130） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P07552） PROTOPORPHYRIN IX CONTAINING FE × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	UCRQ_BOVIN
Isoform	—
PDB entities	7
Chains and sequence ranges	Author chain G； PDBConstruct 1–70； UniProt 1–70

UBIQUINOL CYTOCHROME C OXIDOREDUCTASE

OrganismNot specified

UniProt P00126

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 11	UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P31800） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P23004） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00157） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00125） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13272） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00129） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13271） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13272） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00130） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P07552） PROTOPORPHYRIN IX CONTAINING FE × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	UCRH_BOVIN
Isoform	—
PDB entities	8
Chains and sequence ranges	Author chain H； PDBConstruct 1–60； UniProt 18–77

UBIQUINOL CYTOCHROME C OXIDOREDUCTASE

OrganismNot specified

UniProt P00130

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 11	UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P31800） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P23004） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00157） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00125） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13272） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00129） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13271） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00126） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13272） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P07552） PROTOPORPHYRIN IX CONTAINING FE × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	UCR10_BOVIN
Isoform	—
PDB entities	10
Chains and sequence ranges	Author chain J； PDBConstruct 1–59； UniProt 4–62

UBIQUINOL CYTOCHROME C OXIDOREDUCTASE

OrganismNot specified

UniProt P07552

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 11	UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P31800） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P23004） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00157） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00125） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13272） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00129） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13271） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00126） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P13272） UBIQUINOL CYTOCHROME C OXIDOREDUCTASE × 1 （P00130） PROTOPORPHYRIN IX CONTAINING FE × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	UCR11_BOVIN
Isoform	—
PDB entities	11
Chains and sequence ranges	Author chain K； PDBConstruct 1–45； UniProt 1–45

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	1qcr
Deposition date deposition_date	1997-05-17
Structure title title	CRYSTAL STRUCTURE OF BOVINE MITOCHONDRIAL CYTOCHROME BC1 COMPLEX, ALPHA CARBON ATOMS ONLY
Keywords keywords	;BC1, QCR, MEMBRANE PROTEIN, PROTON TRANSLOCATION, ELECTRON TRANSFER, PROTEASE, MPP, MITOCHONDRIAL PROCESSING PEPTIDASE, CYTOCHROME C1, CYTOCHROME B, RIESKE, IRON SULFER PROTEIN, OXIDOREDUCTASE ;; OXIDOREDUCTASE
Experimental Method method	X-RAY DIFFRACTION

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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

1qcr__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1qcr__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1qcr__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	47.31 Å
Rg (electron density)	47.30 Å
Total Rg	47.26 Å
Atom count	43
Residues	0
Excluded volume	258970 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1qcr__assembly_1__model_1`	undecameric （11）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (12)

Entity 1 Entity 1 polymer

Description description	UBIQUINOL CYTOCHROME C OXIDOREDUCTASE
Molecular weight formula_weight	49252.2 kDa
EC 编号 ec_number	1.10.2.2
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	1926

TATYAQALQSVPETQVSQLDNGLRVASEQSSQPTCTVGVWIDAGSRYESEKNNGAGYFVEHLAFKGTKNRPGNALEKEVESMGAHLNAYSTREHTAYYIKALSKDLPKAVELLADIVQNCSLEDSQIEKERDVILQELQENDTSMRDVVFNYLHATAFQGTPLAQSVEGPSENVRKLSRADLTEYLSRHYKAPRMVLAAAGGLEHRQLLDLAQKHFSGLSGTYDEDAVPTLSPCRFTGSQICHREDGLPLAHVAIAVEGPGWAHPDNVALQVANAIIGHYDCTYGGGAHLSSPLASIAATNKLCQSFQTFNICYADTGLLGAHFVCDHMSIDDMMFVLQGQWMRLCTSATESEVLRGKNLLRNALVSHLDGTTPVCEDIGRSLLTYGRRIPLAEWESRIAEVDARVVREVCSKYFYDQCPAVAGFGPVEQLPDYNRIRSGMFWLRF

Entity 2 Entity 2 polymer

Description description	UBIQUINOL CYTOCHROME C OXIDOREDUCTASE
Molecular weight formula_weight	45023.6 kDa
EC 编号 ec_number	1.10.2.2
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

VPPHPQDLEFTRLPNGLVIASLENYAPASRIGLFIKAGSRYENSNNLGTSHLLRLASSLTTKGASSFKITRGIEAVGGKLSVTSTRENMAYTVECLRDDVDILMEFLLNVTTAPEFRRWEVAALQPQLRIDKAVALQNPQAHVIENLHAAAYRNALANSLYCPDYRIGKVTPVELHDYVQNHFTSARMALIGLGVSHPVLKQVAEQFLNIRGGLGLSGAKAKYHGGEIREQNGDSLVHAALVAESAAIGSAEANAFSVLQHVLGAGPHVKRGSNATSSLYQAVAKGVHQPFDVSAFNASYSDSGLFGFYTISQAASAGDVIKAAYNQVKTIAQGNLSNPDVQAAKNKLKAGYLMSVESSEGFLDEVGSQALAAGSYTPPSTVLQQIDAVADADVINAAKKFVSGRKSMAASGNLGHTPFIDEL

Entity 3 Entity 3 polymer

Description description	UBIQUINOL CYTOCHROME C OXIDOREDUCTASE
Molecular weight formula_weight	42489.1 kDa
EC 编号 ec_number	1.10.2.2
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C

TNIRKSHPLMKIVNNAFIDLPAPSNISSWWNFGSLLGICLILQILTGLFLAMHYTSDTTTAFSSVTHICRDVNYGWIIRYMHANGASMFFICLYMHVGRGLYYGSYTFLETWNIGVILLLTVMATAFMGYVLPWGQMSFWGATVITNLLSAIPYIGTNLVEWIWGGFSVDKATLTRFFAFHFILPFIIMAIAMVHLLFLHETGSNNPTGISSDVDKIPFHPYYTIKDILGALLLILALMLLVLFAPDLLGDPDNYTPANPLNTPPHIKPEWYFLFAYAILRSIPNKLGGVLALAFSILILALIPLLHTSKQRSMMFRPLSQCLFWALVADLLTLTWIGGQPVEHPYITIGQLASVLYFLLILVLMPTAGTIENKLLKW

Entity 4 Entity 4 polymer

Description description	UBIQUINOL CYTOCHROME C OXIDOREDUCTASE
Molecular weight formula_weight	8785.6 kDa
EC 编号 ec_number	1.10.2.2
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	D

EVLEFDDGTPATMSQVAKDVCTFLRWAAEPEHDHRKRMGLKMLLMMGLLLPLVYAMKRHKWSVLKSRKLAYRPPK

Entity 5 Entity 5 polymer

Description description	UBIQUINOL CYTOCHROME C OXIDOREDUCTASE
Molecular weight formula_weight	21640.6 kDa
EC 编号 ec_number	1.10.2.2
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	E

SHTDIKVPDFSDYRRPEVLDSTKSSKESSEARKGFSYLVTATTTVGVAYAAKNVVSQFVSSMSASADVLAMSKIEIKLSDIPEGKNMAFKWRGKPLFVRHRTKKEIDQEAAVEVSQLRDPQHDLERVKKPEWVILIGVCTHLGCVPIANAGDFGGYYCPCHGSHYDASGRIRKGPAPLNLEVPSYEFTSDDMVIVG

Entity 6 Entity 6 polymer

Description description	UBIQUINOL CYTOCHROME C OXIDOREDUCTASE
Molecular weight formula_weight	12731.5 kDa
EC 编号 ec_number	1.10.2.2
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	F

ASSRWLEGIRKWYYNAAGFNKLGLMRDDTIHENDDVKEAIRRLPENLYDDRVFRIKRALDLSMRQQILPKEQWTKYEEDKSYLEPYLKEVIRERKEREEWAKK

Entity 7 Entity 7 polymer

Description description	UBIQUINOL CYTOCHROME C OXIDOREDUCTASE
Molecular weight formula_weight	8287.6 kDa
EC 编号 ec_number	1.10.2.2
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	G

GRQFGHLTRVRHVITYSLSPFEQRAFPHYFSKGIPNVLRRTRACILRVAPPFVAFYLVYTWGTQEFEKSK

Entity 8 Entity 8 polymer

Description description	UBIQUINOL CYTOCHROME C OXIDOREDUCTASE
Molecular weight formula_weight	7090.9 kDa
EC 编号 ec_number	1.10.2.2
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	H

TTVREQCEQLEKCVKARERLELCDERVSSRSQTEEDCTEELLDFLHARDHCVAHKLFNSL

Entity 9 Entity 9 polymer

Description description	UBIQUINOL CYTOCHROME C OXIDOREDUCTASE
Molecular weight formula_weight	2806.2 kDa
EC 编号 ec_number	1.10.2.2
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	I

GVAGALRPLVQAAVPATSESPVLDLKRS

Entity 10 Entity 10 polymer

Description description	UBIQUINOL CYTOCHROME C OXIDOREDUCTASE
Molecular weight formula_weight	6928.0 kDa
EC 编号 ec_number	1.10.2.2
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	J

TLTARLYSLLFRRTSTFALTIVVGALFFERAFDNGADAIYEHINEGKLWKHIKHKYENK

Entity 11 Entity 11 polymer

Description description	UBIQUINOL CYTOCHROME C OXIDOREDUCTASE
Molecular weight formula_weight	5060.9 kDa
EC 编号 ec_number	1.10.2.2
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	K

MLTRFLGPRYRQLARNWVPTAQLWGAVGAVGLVSATDSRLILDWV

Entity 12 Entity 12 non-polymer

Description description	PROTOPORPHYRIN IX CONTAINING FE
Molecular weight formula_weight	616.5 kDa
Source method src_method	syn
Copy count entity_count	1

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6. Fold Classification (SCOP + CATH) 15 domains

SCOP 2.08 (15 domains)

Domain ID domain_id	d1qcra1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.185 — LuxS/MPP-like metallohydrolase
Superfamily Superfamily superfamily	d.185.1 — LuxS/MPP-like metallohydrolase
Family Family family	d.185.1.1 — MPP-like

Domain ID domain_id	d1qcra2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.185 — LuxS/MPP-like metallohydrolase
Superfamily Superfamily superfamily	d.185.1 — LuxS/MPP-like metallohydrolase
Family Family family	d.185.1.1 — MPP-like

Domain ID domain_id	d1qcrb1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.185 — LuxS/MPP-like metallohydrolase
Superfamily Superfamily superfamily	d.185.1 — LuxS/MPP-like metallohydrolase
Family Family family	d.185.1.1 — MPP-like

Domain ID domain_id	d1qcrb2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.185 — LuxS/MPP-like metallohydrolase
Superfamily Superfamily superfamily	d.185.1 — LuxS/MPP-like metallohydrolase
Family Family family	d.185.1.1 — MPP-like

Domain ID domain_id	d1qcrc2
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.32 — a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)
Superfamily Superfamily superfamily	f.32.1 — a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)
Family Family family	f.32.1.1 — a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)

Domain ID domain_id	d1qcrc3
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.21 — Heme-binding four-helical bundle
Superfamily Superfamily superfamily	f.21.1 — Transmembrane di-heme cytochromes
Family Family family	f.21.1.2 — Cytochrome b of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)

Domain ID domain_id	d1qcrd2
Class class	a — All alpha proteins
Fold Fold fold	a.3 — Cytochrome c
Superfamily Superfamily superfamily	a.3.1 — Cytochrome c
Family Family family	a.3.1.3 — Cytochrome bc1 domain

Domain ID domain_id	d1qcrd3
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.23 — Single transmembrane helix
Superfamily Superfamily superfamily	f.23.11 — Cytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor
Family Family family	f.23.11.1 — Cytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor

Domain ID domain_id	d1qcre1
Class class	b — All beta proteins
Fold Fold fold	b.33 — ISP domain
Superfamily Superfamily superfamily	b.33.1 — ISP domain
Family Family family	b.33.1.1 — Rieske iron-sulfur protein (ISP)

Domain ID domain_id	d1qcre2
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.23 — Single transmembrane helix
Superfamily Superfamily superfamily	f.23.12 — ISP transmembrane anchor
Family Family family	f.23.12.1 — ISP transmembrane anchor

Domain ID domain_id	d1qcrf_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.27 — 14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)
Superfamily Superfamily superfamily	f.27.1 — 14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)
Family Family family	f.27.1.1 — 14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)

Domain ID domain_id	d1qcrg_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.23 — Single transmembrane helix
Superfamily Superfamily superfamily	f.23.13 — Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)
Family Family family	f.23.13.1 — Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)

Domain ID domain_id	d1qcrh_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.28 — Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)
Superfamily Superfamily superfamily	f.28.1 — Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)
Family Family family	f.28.1.1 — Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)

Domain ID domain_id	d1qcrj_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.23 — Single transmembrane helix
Superfamily Superfamily superfamily	f.23.14 — Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)
Family Family family	f.23.14.1 — Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)

Domain ID domain_id	d1qcrk_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.23 — Single transmembrane helix
Superfamily Superfamily superfamily	f.23.15 — Subunit XI (6.4 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)
Family Family family	f.23.15.1 — Subunit XI (6.4 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)

▶

Unit-cell length a length_a	153.500 Å
Unit-cell length b length_b	153.500 Å
Unit-cell length c length_c	597.700 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	16

Space group space_group	I 41 2 2
Space-group number int_tables_number	98
Crystal system crystal_system	—

Resolution resolution	2.700 Å
Low-resolution limit resolution_low	10.000 Å
R factor r_factor	0.3000
R_work r_work	0.3000
R_free r_free	0.3750

CRYSTAL STRUCTURE OF BOVINE MITOCHONDRIAL CYTOCHROME BC1 COMPLEX, ALPHA CARBON ATOMS ONLY

1. Protein Identity and Related Structures Protein Identity & Related Structures

UBIQUINOL CYTOCHROME C OXIDOREDUCTASE

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

UBIQUINOL CYTOCHROME C OXIDOREDUCTASE

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

UBIQUINOL CYTOCHROME C OXIDOREDUCTASE

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

UBIQUINOL CYTOCHROME C OXIDOREDUCTASE

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

UBIQUINOL CYTOCHROME C OXIDOREDUCTASE

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

UBIQUINOL CYTOCHROME C OXIDOREDUCTASE

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

UBIQUINOL CYTOCHROME C OXIDOREDUCTASE

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

UBIQUINOL CYTOCHROME C OXIDOREDUCTASE

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

UBIQUINOL CYTOCHROME C OXIDOREDUCTASE

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

UBIQUINOL CYTOCHROME C OXIDOREDUCTASE

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer