Q94K78 · UCRY_ARATH

Function

function

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.

GO annotations

all annotationsall molecular functionnucleotide bindingmolecular_functionnucleic acid bindingdna bindingchromatin bindingdna-binding transcription factor activityrna bindingcytoskeletal motor activitycatalytic activitynuclease activitysignaling receptor bindingstructural molecule activitytransporter activitybindingprotein bindingtranslation factor activity, rna bindinglipid bindingkinase activitytransferase activityhydrolase activityoxygen bindingenzyme regulator activitycarbohydrate bindingsignaling receptor activitytranslation regulator activitytranscription regulator activityother molecular functionall biological processcarbohydrate metabolic processgeneration of precursor metabolites and energynucleobase-containing compound metabolic processdna metabolic processtranslationlipid metabolic processtransportresponse to stresscell cyclecell communicationsignal transductioncell-cell signalingmulticellular organism developmentcircadian rhythmbiological_processmetabolic processcatabolic processbiosynthetic processresponse to light stimulusresponse to external stimulustropismresponse to biotic stimulusresponse to abiotic stimulusresponse to endogenous stimulusembryo developmentpost-embryonic developmentfruit ripeningabscissionpollinationflower developmentcellular processprogrammed cell deathphotosynthesiscellular component organizationcell growthprotein metabolic processcellular homeostasissecondary metabolic processreproductive processcell differentiationprotein modification processgrowthepigenetic regulation of gene expressionresponse to chemicalanatomical structure developmentregulation of molecular functionother biological processall cellular componentcellular_componentextracellular regioncell wallintracellular anatomical structurenucleusnuclear envelopenucleoplasmnucleoluscytoplasmmitochondrionlysosomeendosomevacuoleperoxisomeendoplasmic reticulumgolgi apparatuscytosolribosomecytoskeletonplasma membranechloroplastplastidthylakoidmembraneexternal encapsulating structureother cellular component
Cell color indicative of number of GO terms
AspectTerm
Cellular Componentcytosol
Cellular Componentmitochondrial inner membrane
Cellular Componentmitochondrion

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    Cytochrome b-c1 complex subunit 10, mitochondrial
  • Alternative names
    • Complex III subunit 10
    • Complex III subunit XI
    • Ubiquinol-cytochrome c oxidoreductase subunit 10

Gene names

    • Name
      UCRY
    • Ordered locus names
      At2g40765

Organism names

  • Taxonomic identifier
  • Strain
    • cv. Columbia
  • Taxonomic lineage
    Eukaryota > Viridiplantae > Streptophyta > Embryophyta > Tracheophyta > Spermatophyta > Magnoliopsida > eudicotyledons > Gunneridae > Pentapetalae > rosids > malvids > Brassicales > Brassicaceae > Camelineae > Arabidopsis

Accessions

  • Primary accession
    Q94K78

Proteomes

Organism-specific databases

Genome annotation databases

Subcellular Location

Features

Showing features for topological domain, transmembrane.

TypeIDPosition(s)Description
Topological domain1-23Mitochondrial matrix
Transmembrane24-44Helical
Topological domain45-57Mitochondrial intermembrane

Keywords

PTM/Processing

Features

Showing features for chain.

TypeIDPosition(s)Description
ChainPRO_00004492581-57Cytochrome b-c1 complex subunit 10, mitochondrial

Proteomic databases

PTM databases

Expression

Gene expression databases

Interaction

Subunit

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 (MT-CYB), cytochrome c1 (CYC1-1 or CYC1-2) and Rieske protein (UCR1-1 or UCR1-2), 2 core protein subunits MPPalpha1 (or MPPalpha2) and MPPB, and 5 low-molecular weight protein subunits QCR7-1 (or QCR7-2), UCRQ-1 (or UCRQ-2), QCR9, UCRY and probably QCR6-1 (or QCR6-2) (PubMed:18189341).
The complex exists as an obligatory dimer and forms supercomplexes (SCs) in the inner mitochondrial membrane with NADH-ubiquinone oxidoreductase (complex I, CI), resulting in different assemblies (supercomplexes SCI1III2 and SCI2III4) (PubMed:12970493).

Protein-protein interaction databases

Family & Domains

Sequence similarities

Belongs to the UQCR11/QCR10 family.

Keywords

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    57
  • Mass (Da)
    5,976
  • Last updated
    2001-12-01 v1
  • Checksum
    235CE5087E2819C1
MAGTSGLLNAVKPKIQTIDIQAAAGWGIAAAAGAIWVVQPFGWIKKTFIDPPPTEEK

Keywords

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
CP002685
EMBL· GenBank· DDBJ
AEC09875.1
EMBL· GenBank· DDBJ
Genomic DNA
AF370214
EMBL· GenBank· DDBJ
AAK44029.1
EMBL· GenBank· DDBJ
mRNA
AY142541
EMBL· GenBank· DDBJ
AAN13123.1
EMBL· GenBank· DDBJ
mRNA
AY085666
EMBL· GenBank· DDBJ
AAM62886.1
EMBL· GenBank· DDBJ
mRNA

Genome annotation databases

Similar Proteins

Disclaimer

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