Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Protein

Cytochrome b-c1 complex subunit 8

Gene

UQCRQ

Organism
Bos taurus (Bovine)
Status
Reviewed-Annotation score:

Annotation score:4 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the ‘protein existence’ evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

This is a component of the ubiquinol-cytochrome c reductase complex (complex III or cytochrome b-c1 complex), which is part of the mitochondrial respiratory chain. This subunit, together with cytochrome b, binds to ubiquinone.

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Biological processElectron transport, Respiratory chain, Transport

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-BTA-611105 Respiratory electron transport

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Cytochrome b-c1 complex subunit 8
Alternative name(s):
Complex III subunit 8
Complex III subunit VIII
Ubiquinol-cytochrome c reductase complex 9.5 kDa protein
Ubiquinol-cytochrome c reductase complex ubiquinone-binding protein QP-C
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: ‘Name’, ‘Synonyms’, ‘Ordered locus names’ and ‘ORF names’.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:UQCRQ
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiBos taurus (Bovine)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the ‘taxonomic identifier’ or ‘taxid’.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri9913 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaRuminantiaPecoraBovidaeBovinaeBos
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000009136 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components. <br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome 7

Organism-specific databases

Vertebrate Gene Nomenclature Database

More...
VGNCi
VGNC:36697 UQCRQ

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Membrane, Mitochondrion, Mitochondrion inner membrane

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section indicates that the initiator methionine is cleaved from the mature protein.<p><a href='/help/init_met' target='_top'>More...</a></p>Initiator methionineiRemoved2 Publications
<p>This subsection of the ‘PTM / Processing’ section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00001935432 – 82Cytochrome b-c1 complex subunit 8Add BLAST81

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘PTM / Processing’ section specifies the position and type of each modified residue excluding <a href="http://www.uniprot.org/manual/lipid">lipids</a>, <a href="http://www.uniprot.org/manual/carbohyd">glycans</a> and <a href="http://www.uniprot.org/manual/crosslnk">protein cross-links</a>.<p><a href='/help/mod_res' target='_top'>More...</a></p>Modified residuei33N6-acetyllysine; alternateBy similarity1
Modified residuei33N6-succinyllysine; alternateBy similarity1

Keywords - PTMi

Acetylation

Proteomic databases

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
P13271

PRoteomics IDEntifications database

More...
PRIDEi
P13271

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
ENSBTAG00000009479 Expressed in 9 organ(s), highest expression level in adult mammalian kidney

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

The bc1 complex contains 11 subunits: 3 respiratory subunits (cytochrome b, cytochrome c1 and Rieske/UQCRFS1), 2 core proteins (UQCRC1/QCR1 and UQCRC2/QCR2) and 6 low-molecular weight proteins (UQCRH/QCR6, UQCRB/QCR7, UQCRQ/QCR8, UQCR10/QCR9, UQCR11/QCR10 and a cleavage product of Rieske/UQCRFS1).

Protein-protein interaction databases

CORUM comprehensive resource of mammalian protein complexes

More...
CORUMi
P13271

Database of interacting proteins

More...
DIPi
DIP-38971N

Protein interaction database and analysis system

More...
IntActi
P13271, 2 interactors

STRING: functional protein association networks

More...
STRINGi
9913.ENSBTAP00000040860

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

Secondary structure

182
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...
PDBei

Protein Data Bank RCSB

More...
RCSB PDBi

Protein Data Bank Japan

More...
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1BCCX-ray3.16G2-82[»]
1BE3X-ray3.00G2-82[»]
1BGYX-ray3.00G/S2-82[»]
1L0LX-ray2.35G2-82[»]
1L0NX-ray2.60G2-82[»]
1NTKX-ray2.60G2-82[»]
1NTMX-ray2.40G2-82[»]
1NTZX-ray2.60G2-82[»]
1NU1X-ray3.20G2-82[»]
1PP9X-ray2.10G/T2-82[»]
1PPJX-ray2.10G/T2-82[»]
1QCRX-ray2.70G2-71[»]
1SQBX-ray2.69G2-82[»]
1SQPX-ray2.70G2-82[»]
1SQQX-ray3.00G2-82[»]
1SQVX-ray2.85G2-82[»]
1SQXX-ray2.60G2-82[»]
2A06X-ray2.10G/T2-82[»]
2BCCX-ray3.50G2-82[»]
2FYUX-ray2.26G2-82[»]
2YBBelectron microscopy19.00G/g2-82[»]
3BCCX-ray3.70G2-82[»]
4D6TX-ray3.57G/T1-82[»]
4D6UX-ray4.09G/T1-82[»]
5GPNelectron microscopy5.40G/S2-82[»]
5KLVX-ray2.65G2-81[»]
5LUFelectron microscopy9.10g/s2-82[»]
5NMIX-ray3.50G/T1-82[»]
5OKDX-ray3.10G1-82[»]
6FO0electron microscopy4.10G/T1-82[»]
6FO2electron microscopy4.40G/T1-82[»]
6FO6electron microscopy4.10G/T1-82[»]

Protein Model Portal of the PSI-Nature Structural Biology Knowledgebase

More...
ProteinModelPortali
P13271

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
P13271

Database of comparative protein structure models

More...
ModBasei
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
P13271

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

<p>This subsection of the ‘Family and domains’ section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the UQCRQ/QCR8 family.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG4116 Eukaryota
ENOG41123BH LUCA

Ensembl GeneTree

More...
GeneTreei
ENSGT00390000004029

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000205681

The HOVERGEN Database of Homologous Vertebrate Genes

More...
HOVERGENi
HBG001468

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P13271

KEGG Orthology (KO)

More...
KOi
K00418

Identification of Orthologs from Complete Genome Data

More...
OMAi
CILRVAP

Database of Orthologous Groups

More...
OrthoDBi
1523793at2759

TreeFam database of animal gene trees

More...
TreeFami
TF300281

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.20.5.210, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR004205 Cyt_bc1_su8
IPR036642 Cyt_bc1_su8_sf

The PANTHER Classification System

More...
PANTHERi
PTHR12119 PTHR12119, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF02939 UcrQ, 1 hit

ProDom; a protein domain database

More...
ProDomi
View protein in ProDom or Entries sharing at least one domain
PD331499 UcrQ, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF81508 SSF81508, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>.<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

P13271-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MGRQFGHLTR VRHVITYSLS PFEQRAFPHY FSKGIPNVLR RTRACILRVA
60 70 80
PPFVAFYLVY TWGTQEFEKS KRKNPAAYEN DR
Length:82
Mass (Da):9,720
Last modified:January 23, 2007 - v3
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i38D7E52051EB7FFA
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Sequence’ section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti62W → C AA sequence (PubMed:3009231).Curated1

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
L06665 mRNA Translation: AAB03845.1
BC103110 mRNA Translation: AAI03111.1

Protein sequence database of the Protein Information Resource

More...
PIRi
A24864

NCBI Reference Sequences

More...
RefSeqi
NP_777230.1, NM_174805.2

UniGene gene-oriented nucleotide sequence clusters

More...
UniGenei
Bt.49658

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSBTAT00000043278; ENSBTAP00000040860; ENSBTAG00000009479

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
286885

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
bta:286885

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
L06665 mRNA Translation: AAB03845.1
BC103110 mRNA Translation: AAI03111.1
PIRiA24864
RefSeqiNP_777230.1, NM_174805.2
UniGeneiBt.49658

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1BCCX-ray3.16G2-82[»]
1BE3X-ray3.00G2-82[»]
1BGYX-ray3.00G/S2-82[»]
1L0LX-ray2.35G2-82[»]
1L0NX-ray2.60G2-82[»]
1NTKX-ray2.60G2-82[»]
1NTMX-ray2.40G2-82[»]
1NTZX-ray2.60G2-82[»]
1NU1X-ray3.20G2-82[»]
1PP9X-ray2.10G/T2-82[»]
1PPJX-ray2.10G/T2-82[»]
1QCRX-ray2.70G2-71[»]
1SQBX-ray2.69G2-82[»]
1SQPX-ray2.70G2-82[»]
1SQQX-ray3.00G2-82[»]
1SQVX-ray2.85G2-82[»]
1SQXX-ray2.60G2-82[»]
2A06X-ray2.10G/T2-82[»]
2BCCX-ray3.50G2-82[»]
2FYUX-ray2.26G2-82[»]
2YBBelectron microscopy19.00G/g2-82[»]
3BCCX-ray3.70G2-82[»]
4D6TX-ray3.57G/T1-82[»]
4D6UX-ray4.09G/T1-82[»]
5GPNelectron microscopy5.40G/S2-82[»]
5KLVX-ray2.65G2-81[»]
5LUFelectron microscopy9.10g/s2-82[»]
5NMIX-ray3.50G/T1-82[»]
5OKDX-ray3.10G1-82[»]
6FO0electron microscopy4.10G/T1-82[»]
6FO2electron microscopy4.40G/T1-82[»]
6FO6electron microscopy4.10G/T1-82[»]
ProteinModelPortaliP13271
SMRiP13271
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

CORUMiP13271
DIPiDIP-38971N
IntActiP13271, 2 interactors
STRINGi9913.ENSBTAP00000040860

Proteomic databases

PaxDbiP13271
PRIDEiP13271

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENSBTAT00000043278; ENSBTAP00000040860; ENSBTAG00000009479
GeneIDi286885
KEGGibta:286885

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
27089
VGNCiVGNC:36697 UQCRQ

Phylogenomic databases

eggNOGiKOG4116 Eukaryota
ENOG41123BH LUCA
GeneTreeiENSGT00390000004029
HOGENOMiHOG000205681
HOVERGENiHBG001468
InParanoidiP13271
KOiK00418
OMAiCILRVAP
OrthoDBi1523793at2759
TreeFamiTF300281

Enzyme and pathway databases

ReactomeiR-BTA-611105 Respiratory electron transport

Miscellaneous databases

EvolutionaryTraceiP13271

Gene expression databases

BgeeiENSBTAG00000009479 Expressed in 9 organ(s), highest expression level in adult mammalian kidney

Family and domain databases

Gene3Di1.20.5.210, 1 hit
InterProiView protein in InterPro
IPR004205 Cyt_bc1_su8
IPR036642 Cyt_bc1_su8_sf
PANTHERiPTHR12119 PTHR12119, 1 hit
PfamiView protein in Pfam
PF02939 UcrQ, 1 hit
ProDomiView protein in ProDom or Entries sharing at least one domain
PD331499 UcrQ, 1 hit
SUPFAMiSSF81508 SSF81508, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the ‘Entry information’ section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiQCR8_BOVIN
<p>This subsection of the ‘Entry information’ section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called ‘Primary (citable) accession number’.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: P13271
Secondary accession number(s): Q3ZBT9
<p>This subsection of the ‘Entry information’ section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification (‘Last modified’). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: January 1, 1990
Last sequence update: January 23, 2007
Last modified: January 16, 2019
This is version 148 of the entry and version 3 of the sequence. See complete history.
<p>This subsection of the ‘Entry information’ section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

<p>This section contains any relevant information that doesn’t fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

We'd like to inform you that we have updated our Privacy Notice to comply with Europe’s new General Data Protection Regulation (GDPR) that applies since 25 May 2018.

Do not show this banner again