A0A3G2JZV5 · A0A3G2JZV5_9NEOP

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

Protein has several cofactor binding sites:
heme b (UniProtKB | Rhea| CHEBI:60344 )

Note: Binds 2 heme groups non-covalently.
heme (UniProtKB | Rhea| CHEBI:30413 )

Note: Binds 2 heme groups non-covalently.

Features

Showing features for binding site.

138350100150200250300350
TypeIDPosition(s)Description
Binding site87Fe (UniProtKB | ChEBI) of heme b b562 (UniProtKB | ChEBI); axial binding residue
Binding site101Fe (UniProtKB | ChEBI) of heme b b566 (UniProtKB | ChEBI); axial binding residue
Binding site186Fe (UniProtKB | ChEBI) of heme b b562 (UniProtKB | ChEBI); axial binding residue
Binding site200Fe (UniProtKB | ChEBI) of heme b b566 (UniProtKB | ChEBI); axial binding residue
Binding site205a ubiquinone (UniProtKB | ChEBI)

GO annotations

AspectTerm
Cellular Componentmitochondrial inner membrane
Cellular Componentrespiratory chain complex III
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 > Metazoa > Ecdysozoa > Arthropoda > Hexapoda > Insecta > Pterygota > Neoptera > Endopterygota > Lepidoptera > Glossata > Ditrysia > Yponomeutoidea > Plutellidae > Plutella

Accessions

  • Primary accession
    A0A3G2JZV5

Subcellular Location

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane40-61Helical
Transmembrane81-103Helical
Transmembrane115-136Helical
Transmembrane142-161Helical
Transmembrane182-203Helical
Transmembrane233-254Helical
Transmembrane291-312Helical
Transmembrane324-344Helical
Transmembrane350-372Helical

Keywords

Interaction

Subunit

The main subunits of complex b-c1 are: cytochrome b, cytochrome c1 and the Rieske protein.

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain1-213Cytochrome b/b6 N-terminal region profile
Domain214-383Cytochrome b/b6 C-terminal region profile

Sequence similarities

Belongs to the cytochrome b family.

Keywords

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    383
  • Mass (Da)
    44,282
  • Last updated
    2019-02-13 v1
  • Checksum
    9AA3148F61F45886
MKNKYLKLSKTHPIFKIINNSVIDLPSPSNISSWWNFGSLLGLCLMIQILTGLFLTMYYTANIELAFYSVNYICRNVNYGWLIRTLHANGASFFFICVYLHIGRGIYYESFNLKNTWMVGVIILFLLMATAFMGYVLPWGQMSFWGATVITNLLSAIPYLGEMLVNWIWGGFAVDNATLTRFYTFHFLLPFIIAMMTMIHLLFLHQTGSNNPLGINSNLDKIPFHPFFTYKDLIGFIIMLFLLVILTLTNPYLLGDPDNFIPANPLVTPIHIQPEWYFLFAYAILRSIPNKLGGVIALFLSIMILIILPLTFNKKIQSIQFYPLNQIIFWFMVSTVMLLTWIGARPVEDPYIITGQILTVLYFSYFIINPFINKMWDNIIFKN

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
MG787473
EMBL· GenBank· DDBJ
AYN50570.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

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