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Entry version 201 (17 Jun 2020)
Sequence version 1 (01 Apr 1988)
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Protein

Cytochrome b-c1 complex subunit 1, mitochondrial

Gene

COR1

Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
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

Component of the ubiquinol-cytochrome c oxidoreductase, a multisubunit transmembrane complex that is part of the mitochondrial electron transport chain which drives oxidative phosphorylation. The respiratory chain contains 3 multisubunit complexes succinate dehydrogenase (complex II, CII), ubiquinol-cytochrome c oxidoreductase (cytochrome b-c1 complex, complex III, CIII) and cytochrome c oxidase (complex IV, CIV), that cooperate to transfer electrons derived from NADH and succinate to molecular oxygen, creating an electrochemical gradient over the inner membrane that drives transmembrane transport and the ATP synthase. The cytochrome b-c1 complex catalyzes electron transfer from ubiquinol to cytochrome c, linking this redox reaction to translocation of protons across the mitochondrial inner membrane, with protons being carried across the membrane as hydrogens on the quinol. In the process called Q cycle, 2 protons are consumed from the matrix, 4 protons are released into the intermembrane space and 2 electrons are passed to cytochrome c.1 Publication

Miscellaneous

Present with 19300 molecules/cell in log phase SD medium.1 Publication

Caution

Does not seem to have a protease activity as it lack the zinc-binding site.Curated

<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

  • aerobic respiration Source: SGD
  • electron transport chain Source: GOC

<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

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
YEAST:YBL045C-MONOMER

BRENDA Comprehensive Enzyme Information System

More...
BRENDAi
2.3.1.9 6758

Reactome - a knowledgebase of biological pathways and processes

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

Protein family/group databases

MEROPS protease database

More...
MEROPSi
M16.973

<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%5Fand%5Ftaxonomy%5Fsection">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 1, mitochondrial
Alternative name(s):
Complex III subunit 1
Core protein I
Ubiquinol-cytochrome c oxidoreductase core protein 1
Ubiquinol-cytochrome c reductase 44 kDa protein
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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:COR1
Synonyms:QCR1
Ordered Locus Names:YBL045C
ORF Names:YBL0403
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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>OrganismiSaccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 identifieri559292 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 lineageiEukaryotaFungiDikaryaAscomycotaSaccharomycotinaSaccharomycetesSaccharomycetalesSaccharomycetaceaeSaccharomyces
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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
  • UP000002311 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">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 II

Organism-specific databases

Eukaryotic Pathogen Database Resources

More...
EuPathDBi
FungiDB:YBL045C

Saccharomyces Genome Database

More...
SGDi
S000000141 COR1

<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 Cell wall Cytoskeleton Vacuole Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte & Seán O’Donoghue; 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 'PTM / Processing' section describes the extent of a transit peptide.<p><a href='/help/transit' target='_top'>More...</a></p>Transit peptidei1 – 26MitochondrionSequence analysis1 PublicationAdd BLAST26
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_000002678827 – 457Cytochrome b-c1 complex subunit 1, mitochondrialAdd BLAST431

Proteomic databases

MaxQB - The MaxQuant DataBase

More...
MaxQBi
P07256

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

More...
PaxDbi
P07256

PRoteomics IDEntifications database

More...
PRIDEi
P07256

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
P07256

<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%5Fsection">'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%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Component of the ubiquinol-cytochrome c oxidoreductase (cytochrome b-c1 complex, complex III, CIII), a multisubunit enzyme composed of 10 subunits. The complex is composed of 3 respiratory subunits cytochrome b (COB), cytochrome c1 (CYT1) and Rieske protein (RIP1), 2 core protein subunits COR1 and QCR2, and 5 low-molecular weight protein subunits QCR6, QCR7, QCR8, QCR9 and QCR10 (PubMed:10873857, PubMed:11880631, PubMed:18390544, PubMed:30598554). The complex exists as an obligatory dimer and forms supercomplexes (SCs) in the inner mitochondrial membrane with a monomer or a dimer of cytochrome c oxidase (complex IV, CIV), resulting in 2 different assemblies (supercomplexes III2IV and III2IV2) (PubMed:10775262, PubMed:10764779, PubMed:30598556, PubMed:30598554). COR1 interacts with COX5A at the CIII-CIV interface (PubMed:30598556, PubMed:30598554).

7 Publications

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction%5Fsection%27">Interaction</a> section provides information about binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="https://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated at every <a href="http://www.uniprot.org/help/synchronization">UniProt release</a>.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...
BioGRIDi
32652, 151 interactors

ComplexPortal: manually curated resource of macromolecular complexes

More...
ComplexPortali
CPX-567 Mitochondrial electron transport complex III

Database of interacting proteins

More...
DIPi
DIP-2635N

Protein interaction database and analysis system

More...
IntActi
P07256, 32 interactors

Molecular INTeraction database

More...
MINTi
P07256

STRING: functional protein association networks

More...
STRINGi
4932.YBL045C

Miscellaneous databases

RNAct, Protein-RNA interaction predictions for model organisms.

More...
RNActi
P07256 protein

<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

1457
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

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

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SMRi
P07256

Database of comparative protein structure models

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ModBasei
Search...

Protein Data Bank in Europe - Knowledge Base

More...
PDBe-KBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
P07256

<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

Keywords - Domaini

Transit peptide

Phylogenomic databases

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_009902_4_2_1

InParanoid: Eukaryotic Ortholog Groups

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InParanoidi
P07256

KEGG Orthology (KO)

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KOi
K00414

Identification of Orthologs from Complete Genome Data

More...
OMAi
PYNNGVS

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR011249 Metalloenz_LuxS/M16
IPR011765 Pept_M16_N
IPR007863 Peptidase_M16_C

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00675 Peptidase_M16, 1 hit
PF05193 Peptidase_M16_C, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF63411 SSF63411, 2 hits

<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%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<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%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">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%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">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.

P07256-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MLRTVTSKTV SNQFKRSLAT AVATPKAEVT QLSNGIVVAT EHNPSAHTAS
60 70 80 90 100
VGVVFGSGAA NENPYNNGVS NLWKNIFLSK ENSAVAAKEG LALSSNISRD
110 120 130 140 150
FQSYIVSSLP GSTDKSLDFL NQSFIQQKAN LLSSSNFEAT KKSVLKQVQD
160 170 180 190 200
FEENDHPNRV LEHLHSTAFQ NTPLSLPTRG TLESLENLVV ADLESFANNH
210 220 230 240 250
FLNSNAVVVG TGNIKHEDLV NSIESKNLSL QTGTKPVLKK KAAFLGSEVR
260 270 280 290 300
LRDDTLPKAW ISLAVEGEPV NSPNYFVAKL AAQIFGSYNA FEPASRLQGI
310 320 330 340 350
KLLDNIQEYQ LCDNFNHFSL SYKDSGLWGF STATRNVTMI DDLIHFTLKQ
360 370 380 390 400
WNRLTISVTD TEVERAKSLL KLQLGQLYES GNPVNDANLL GAEVLIKGSK
410 420 430 440 450
LSLGEAFKKI DAITVKDVKA WAGKRLWDQD IAIAGTGQIE GLLDYMRIRS

DMSMMRW
Length:457
Mass (Da):50,228
Last modified:April 1, 1988 - v1
<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:iAE58739EFB695254
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

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EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
J02636 Genomic DNA Translation: AAA34508.1
X78214 Genomic DNA Translation: CAA55050.1
Z35806 Genomic DNA Translation: CAA84865.1
AY693047 Genomic DNA Translation: AAT93066.1
BK006936 Genomic DNA Translation: DAA07073.1

Protein sequence database of the Protein Information Resource

More...
PIRi
A25351

NCBI Reference Sequences

More...
RefSeqi
NP_009508.1, NM_001178285.1

Genome annotation databases

Ensembl fungal genome annotation project

More...
EnsemblFungii
YBL045C_mRNA; YBL045C; YBL045C

Database of genes from NCBI RefSeq genomes

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GeneIDi
852235

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
sce:YBL045C

<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
J02636 Genomic DNA Translation: AAA34508.1
X78214 Genomic DNA Translation: CAA55050.1
Z35806 Genomic DNA Translation: CAA84865.1
AY693047 Genomic DNA Translation: AAT93066.1
BK006936 Genomic DNA Translation: DAA07073.1
PIRiA25351
RefSeqiNP_009508.1, NM_001178285.1

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
1EZVX-ray2.30A27-457[»]
1KB9X-ray2.30A27-457[»]
1KYOX-ray2.97A/L27-457[»]
1P84X-ray2.50A27-457[»]
2IBZX-ray2.30A27-457[»]
3CX5X-ray1.90A/L27-457[»]
3CXHX-ray2.50A/L27-457[»]
4PD4X-ray3.04A27-457[»]
6GIQelectron microscopy3.23A/L1-457[»]
6HU9electron microscopy3.35A/L27-457[»]
SMRiP07256
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

BioGRIDi32652, 151 interactors
ComplexPortaliCPX-567 Mitochondrial electron transport complex III
DIPiDIP-2635N
IntActiP07256, 32 interactors
MINTiP07256
STRINGi4932.YBL045C

Protein family/group databases

MEROPSiM16.973

PTM databases

iPTMnetiP07256

Proteomic databases

MaxQBiP07256
PaxDbiP07256
PRIDEiP07256

Genome annotation databases

EnsemblFungiiYBL045C_mRNA; YBL045C; YBL045C
GeneIDi852235
KEGGisce:YBL045C

Organism-specific databases

EuPathDBiFungiDB:YBL045C
SGDiS000000141 COR1

Phylogenomic databases

HOGENOMiCLU_009902_4_2_1
InParanoidiP07256
KOiK00414
OMAiPYNNGVS

Enzyme and pathway databases

BioCyciYEAST:YBL045C-MONOMER
BRENDAi2.3.1.9 6758
ReactomeiR-SCE-611105 Respiratory electron transport

Miscellaneous databases

EvolutionaryTraceiP07256

Protein Ontology

More...
PROi
PR:P07256
RNActiP07256 protein

Family and domain databases

InterProiView protein in InterPro
IPR011249 Metalloenz_LuxS/M16
IPR011765 Pept_M16_N
IPR007863 Peptidase_M16_C
PfamiView protein in Pfam
PF00675 Peptidase_M16, 1 hit
PF05193 Peptidase_M16_C, 1 hit
SUPFAMiSSF63411 SSF63411, 2 hits

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
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 nameiQCR1_YEAST
<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: P07256
Secondary accession number(s): D6VPV3
<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%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: April 1, 1988
Last sequence update: April 1, 1988
Last modified: June 17, 2020
This is version 201 of the entry and version 1 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 programFungal 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, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families
  3. Yeast
    Yeast (Saccharomyces cerevisiae): entries, gene names and cross-references to SGD
  4. Yeast chromosome II
    Yeast (Saccharomyces cerevisiae) chromosome II: entries and gene names
  5. Peptidase families
    Classification of peptidase families and list of entries
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