A0A165B872 · A0A165B872_9FLOR

Function

function

Component of the ubiquinol-cytochrome c reductase complex (complex III or cytochrome b-c1 complex) that is part of the mitochondrial respiratory chain. The b-c1 complex mediates electron transfer from ubiquinol to cytochrome c. Contributes to the generation of a proton gradient across the mitochondrial membrane that is then used for ATP synthesis.

Cofactor

heme b (UniProtKB | Rhea| CHEBI:60344 )

Note: Binds 2 heme groups non-covalently.

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 Componentmitochondrial inner membrane
Molecular Functionmetal ion binding
Molecular Functionubiquinol-cytochrome-c reductase activity
Biological Processmitochondrial electron transport, ubiquinol to cytochrome c

Keywords

Names & Taxonomy

Protein names

  • Recommended name
    Cytochrome b

Gene names

    • Name
      CYTB

Encoded on

  • Mitochondrion

Organism names

  • Taxonomic identifier
  • Organism
  • Taxonomic lineage
    Eukaryota > Rhodophyta > Florideophyceae > Rhodymeniophycidae > Halymeniales > Halymeniaceae > Cryptonemia

Accessions

  • Primary accession
    A0A165B872

Subcellular Location

Mitochondrion inner membrane
; Multi-pass membrane protein

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane41-61Helical
Transmembrane76-98Helical
Transmembrane110-131Helical
Transmembrane143-165Helical
Transmembrane186-210Helical
Transmembrane253-272Helical

Keywords

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain1-174Cytochrome b/b6 N-terminal region profile
Domain175-300Cytochrome b/b6 C-terminal region profile

Sequence similarities

Belongs to the cytochrome b family.

Keywords

Family and domain databases

Sequence

  • Sequence status
    Fragment
  • Length
    300
  • Mass (Da)
    34,046
  • Last updated
    2016-07-06 v1
  • Checksum
    683D9D950EE0082B
AICLIIQIITGIFLAMHYTPHVDLAFASVEHIMRDVNYGWLLRYIHANGASMFFIVVYIHIFRGLYFGSYTKPRHWVWVVGIIIFLLMIITAFIGYVLPWGQMSLWGATVITNLVSAVPLVGDSIVTWLWGGFSVDNATLNRFFSLHYLLPFVIAAASLIHLAILHQDGSGNPLGIDSNVDKISMFPYFIVKDLLGLVIFIIFFSGFVYFSPNLLGHPDNYIEANPMVTPAHIVPEWYFLPFYAILRSIPHKLGGVIAMISAIVILALLPWIHSTEVRSSRFRPIYKFLYWTMLSCCLIL

Features

Showing features for non-terminal residue.

TypeIDPosition(s)Description
Non-terminal residue1
Non-terminal residue300

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
KU722630
EMBL· GenBank· DDBJ
AMX21833.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

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