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D2K6P3 · D2K6P3_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.

136850100150200250300350
TypeIDPosition(s)Description
Binding site71Fe (UniProtKB | ChEBI) of heme b b562 (UniProtKB | ChEBI); axial binding residue
Binding site85Fe (UniProtKB | ChEBI) of heme b b566 (UniProtKB | ChEBI); axial binding residue
Binding site170Fe (UniProtKB | ChEBI) of heme b b562 (UniProtKB | ChEBI); axial binding residue
Binding site184Fe (UniProtKB | ChEBI) of heme b b566 (UniProtKB | ChEBI); axial binding residue
Binding site189a 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 > Chordata > Craniata > Vertebrata > Euteleostomi > Actinopterygii > Neopterygii > Teleostei > Ostariophysi > Cypriniformes > Leuciscidae > Pogonichthyinae > Clinostomus

Accessions

  • Primary accession
    D2K6P3

Subcellular Location

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane17-40Helical
Transmembrane75-95Helical
Transmembrane101-121Helical
Transmembrane165-188Helical
Transmembrane217-238Helical
Transmembrane276-296Helical
Transmembrane308-329Helical
Transmembrane335-360Helical

Keywords

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain1-197Cytochrome b/b6 N-terminal region profile
Domain198-368Cytochrome b/b6 C-terminal region profile

Sequence similarities

Belongs to the cytochrome b family.

Keywords

Family and domain databases

Sequence

  • Sequence status
    Fragment
  • Length
    368
  • Mass (Da)
    41,170
  • Last updated
    2010-02-09 v1
  • MD5 Checksum
    9E3CDFF2F81E98AE834844906DBCE8FD
IANDALVDLPTPSNISVMWNFGSLLGLCLITQILTGLFLAMHYTSDISTAFSSVTHICRDVNYGWLIRNMHANGASFFFICIYMHIARGLYYGSYLYKETWNIGVVLLLLVMMTAFVGYVLPWGQMSFWGATVITNLLSAVPYMGDTLVQWIWGGFSVDNATLTRFFAFHFLFPFVIAGATILHLLFLHETGSNNPAGLNSDADKISFHPYFSYKDLLGFVLMLLALTSLTLFSPTLLGDPENFTPANPLVTPPHIQPEWYFLFAYAILRSIPNKLGGVLALLFSILVLMVVPILHTSKQRGLTFRPVTQFLFWTLVADMIILTWIGGMPVEHPYIIIGQIASVLYFALFLVLAPLAGWVENKALKWA

Features

Showing features for non-terminal residue.

TypeIDPosition(s)Description
Non-terminal residue1
Non-terminal residue368

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
GU182723
EMBL· GenBank· DDBJ
ACZ64541.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

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