Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Entry version 198 (08 May 2019)
Sequence version 1 (01 Apr 1988)
Previous versions | rss
Other tutorials and videosHelp videoFeedback
Protein

Cytochrome b-c1 complex subunit 2, mitochondrial

Gene

QCR2

Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
Status
Reviewed-Annotation score:

Annotation score:5 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 reductase complex (complex III or cytochrome b-c1 complex), which is part of the mitochondrial respiratory chain that generates an electrochemical potential coupled to ATP synthesis. The complex couples electron transfer from ubiquinol to cytochrome c. QCR2 is required for the assembly of the complex.

Miscellaneous

Present with 35700 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

<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:YPR191W-MONOMER

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
M16.974

<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 2, mitochondrial
Alternative name(s):
Complex III subunit 2
Core protein II
Ubiquinol-cytochrome-c reductase complex core protein 2
<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:QCR2
Synonyms:COR2, UCR2
Ordered Locus Names:YPR191W
ORF Names:P9677.6
<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>OrganismiSaccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
<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 identifieri559292 [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 lineageiEukaryotaFungiDikaryaAscomycotaSaccharomycotinaSaccharomycetesSaccharomycetalesSaccharomycetaceaeSaccharomyces
<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
  • UP000002311 <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 XVI

Organism-specific databases

Eukaryotic Pathogen Database Resources

More...
EuPathDBi
FungiDB:YPR191W

Saccharomyces Genome Database

More...
SGDi
S000006395 QCR2

<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 – 16MitochondrionAdd BLAST16
<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_000002680117 – 368Cytochrome b-c1 complex subunit 2, mitochondrialAdd BLAST352

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 residuei141PhosphoserineCombined sources1
Modified residuei168PhosphoserineCombined sources1

Keywords - PTMi

Phosphoprotein

Proteomic databases

MaxQB - The MaxQuant DataBase

More...
MaxQBi
P07257

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

More...
PaxDbi
P07257

PRoteomics IDEntifications database

More...
PRIDEi
P07257

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
P07257

<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

Fungi cytochrome b-c1 complex contains 10 subunits; 3 respiratory subunits, 2 core proteins and 5 low-molecular weight proteins. Cytochrome b-c1 complex is a homodimer.

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction_section%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="http://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated on a monthly basis. Each binary interaction is displayed on a separate line.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

WithEntry#Exp.IntActNotes
COR1P072563EBI-19929,EBI-19922

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGrid)

More...
BioGridi
36363, 416 interactors

ComplexPortal: manually curated resource of macromolecular complexes

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

Database of interacting proteins

More...
DIPi
DIP-3820N

Protein interaction database and analysis system

More...
IntActi
P07257, 29 interactors

Molecular INTeraction database

More...
MINTi
P07257

STRING: functional protein association networks

More...
STRINGi
4932.YPR191W

<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

1368
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
1EZVX-ray2.30B17-368[»]
1KB9X-ray2.30B17-368[»]
1KYOX-ray2.97B/M17-368[»]
1P84X-ray2.50B17-368[»]
2IBZX-ray2.30B17-368[»]
3CX5X-ray1.90B/M17-368[»]
3CXHX-ray2.50B/M17-368[»]
4PD4X-ray3.04B17-368[»]
6GIQelectron microscopy3.23B/M1-368[»]
6HU9electron microscopy3.35B/M17-368[»]

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

More...
SMRi
P07257

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
P07257

<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

Ensembl GeneTree

More...
GeneTreei
ENSGT00940000173495

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000159494

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P07257

KEGG Orthology (KO)

More...
KOi
K00415

Identification of Orthologs from Complete Genome Data

More...
OMAi
KLGKFNY

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
IPR001431 Pept_M16_Zn_BS

Pfam protein domain database

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

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF63411 SSF63411, 2 hits

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00143 INSULINASE, 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.

P07257-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MLSAARLQFA QGSVRRLTVS ARDAPTKIST LAVKVHGGSR YATKDGVAHL
60 70 80 90 100
LNRFNFQNTN TRSALKLVRE SELLGGTFKS TLDREYITLK ATFLKDDLPY
110 120 130 140 150
YVNALADVLY KTAFKPHELT ESVLPAARYD YAVAEQCPVK SAEDQLYAIT
160 170 180 190 200
FRKGLGNPLL YDGVERVSLQ DIKDFADKVY TKENLEVSGE NVVEADLKRF
210 220 230 240 250
VDESLLSTLP AGKSLVSKSE PKFFLGEENR VRFIGDSVAA IGIPVNKASL
260 270 280 290 300
AQYEVLANYL TSALSELSGL ISSAKLDKFT DGGLFTLFVR DQDSAVVSSN
310 320 330 340 350
IKKIVADLKK GKDLSPAINY TKLKNAVQNE SVSSPIELNF DAVKDFKLGK
360
FNYVAVGDVS NLPYLDEL
Length:368
Mass (Da):40,478
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:i51FDE1C5DA4420D0
GO

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
X05120 Genomic DNA Translation: CAA28768.1
U25841 Genomic DNA Translation: AAB64620.1
AY558068 Genomic DNA Translation: AAS56394.1
BK006949 Genomic DNA Translation: DAA11607.1

Protein sequence database of the Protein Information Resource

More...
PIRi
A27535

NCBI Reference Sequences

More...
RefSeqi
NP_015517.1, NM_001184288.1

Genome annotation databases

Ensembl fungal genome annotation project

More...
EnsemblFungii
YPR191W_mRNA; YPR191W_mRNA; YPR191W

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
856321

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
sce:YPR191W

<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
X05120 Genomic DNA Translation: CAA28768.1
U25841 Genomic DNA Translation: AAB64620.1
AY558068 Genomic DNA Translation: AAS56394.1
BK006949 Genomic DNA Translation: DAA11607.1
PIRiA27535
RefSeqiNP_015517.1, NM_001184288.1

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1EZVX-ray2.30B17-368[»]
1KB9X-ray2.30B17-368[»]
1KYOX-ray2.97B/M17-368[»]
1P84X-ray2.50B17-368[»]
2IBZX-ray2.30B17-368[»]
3CX5X-ray1.90B/M17-368[»]
3CXHX-ray2.50B/M17-368[»]
4PD4X-ray3.04B17-368[»]
6GIQelectron microscopy3.23B/M1-368[»]
6HU9electron microscopy3.35B/M17-368[»]
SMRiP07257
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi36363, 416 interactors
ComplexPortaliCPX-567 Mitochondrial electron transport complex III
DIPiDIP-3820N
IntActiP07257, 29 interactors
MINTiP07257
STRINGi4932.YPR191W

Protein family/group databases

MEROPSiM16.974

PTM databases

iPTMnetiP07257

Proteomic databases

MaxQBiP07257
PaxDbiP07257
PRIDEiP07257

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblFungiiYPR191W_mRNA; YPR191W_mRNA; YPR191W
GeneIDi856321
KEGGisce:YPR191W

Organism-specific databases

EuPathDBiFungiDB:YPR191W
SGDiS000006395 QCR2

Phylogenomic databases

GeneTreeiENSGT00940000173495
HOGENOMiHOG000159494
InParanoidiP07257
KOiK00415
OMAiKLGKFNY

Enzyme and pathway databases

BioCyciYEAST:YPR191W-MONOMER
ReactomeiR-SCE-611105 Respiratory electron transport

Miscellaneous databases

EvolutionaryTraceiP07257

Protein Ontology

More...
PROi
PR:P07257

Family and domain databases

InterProiView protein in InterPro
IPR011249 Metalloenz_LuxS/M16
IPR011765 Pept_M16_N
IPR001431 Pept_M16_Zn_BS
PfamiView protein in Pfam
PF00675 Peptidase_M16, 1 hit
SUPFAMiSSF63411 SSF63411, 2 hits
PROSITEiView protein in PROSITE
PS00143 INSULINASE, 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 nameiQCR2_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: P07257
Secondary accession number(s): D6W4J1
<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: April 1, 1988
Last sequence update: April 1, 1988
Last modified: May 8, 2019
This is version 198 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, Complete proteome, Reference proteome

Documents

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