K7TGE3 · K7TGE3_9TELE

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.

136450100150200250300350
TypeIDPosition(s)Description
Binding site73Fe (UniProtKB | ChEBI) of heme b b562 (UniProtKB | ChEBI); axial binding residue
Binding site87Fe (UniProtKB | ChEBI) of heme b b566 (UniProtKB | ChEBI); axial binding residue
Binding site172Fe (UniProtKB | ChEBI) of heme b b562 (UniProtKB | ChEBI); axial binding residue
Binding site186Fe (UniProtKB | ChEBI) of heme b b566 (UniProtKB | ChEBI); axial binding residue
Binding site191a 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
  • Taxonomic lineage
    Eukaryota > Metazoa > Chordata > Craniata > Vertebrata > Euteleostomi > Actinopterygii > Neopterygii > Teleostei > Ostariophysi > Cypriniformes > Cyprinidae > Smiliogastrinae > Puntius

Accessions

  • Primary accession
    K7TGE3

Subcellular Location

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane20-42Helical
Transmembrane77-97Helical
Transmembrane103-123Helical
Transmembrane135-156Helical
Transmembrane168-190Helical
Transmembrane219-240Helical
Transmembrane278-298Helical
Transmembrane310-330Helical
Transmembrane336-359Helical

Keywords

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain1-199Cytochrome b/b6 N-terminal region profile
Domain200-364Cytochrome b/b6 C-terminal region profile

Sequence similarities

Belongs to the cytochrome b family.

Keywords

Family and domain databases

Sequence

  • Sequence status
    Fragment
  • Length
    364
  • Mass (Da)
    40,950
  • Last updated
    2013-02-06 v1
  • Checksum
    904A1FAB3FDD8150
IKIADEALVDLPAPSNISAWWNFGSLLGLCLVTQILTGLFLAMHYTSDISTAFSSVVHICRDVNYGWLIRNIHANGASFFFICIYMHIARGLYYGSYLYKETWNTGVVLLLLVMMTAFVGYVLPWGQMSFWGATVITNLLSAVPYVGDALVQWIWGGFSVDNATLTRFFAFHFLLPFVVTAMMILHLLFLHETGSNNPIGLNSDADKIPFHPYFIYKDLLGFVVMLLLLMILALFSPNLLGDPENFTPANPLVTPPHIKPEWYFLFAYAILRSIPKKLGGVLALLFSILVLMLVPLLHTSKLRGLTFRPITQFLFWTLVADMLILTWIGGMPVEHPFILIGQIASALYFALFLILMPLAEWAEN

Features

Showing features for non-terminal residue.

TypeIDPosition(s)Description
Non-terminal residue1
Non-terminal residue364

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
JQ795456
EMBL· GenBank· DDBJ
AFW03861.1
EMBL· GenBank· DDBJ
Genomic DNA
JQ795457
EMBL· GenBank· DDBJ
AFW03862.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

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