Q0R3T2 · Q0R3T2_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.

138050100150200250300350
TypeIDPosition(s)Description
Binding site83Fe (UniProtKB | ChEBI) of heme b b562 (UniProtKB | ChEBI); axial binding residue
Binding site97Fe (UniProtKB | ChEBI) of heme b b566 (UniProtKB | ChEBI); axial binding residue
Binding site182Fe (UniProtKB | ChEBI) of heme b b562 (UniProtKB | ChEBI); axial binding residue
Binding site196Fe (UniProtKB | ChEBI) of heme b b566 (UniProtKB | ChEBI); axial binding residue
Binding site201a 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
    • Synonyms
      Cytb

Encoded on

  • Mitochondrion

Organism names

  • Taxonomic identifier
  • Strains
    • Yd332
    • Hap1
    • Hap2
    • Hap3
    • Hap4
  • Taxonomic lineage
    Eukaryota > Metazoa > Chordata > Craniata > Vertebrata > Euteleostomi > Actinopterygii > Neopterygii > Teleostei > Ostariophysi > Cypriniformes > Cyprinidae > Schizothoracinae > Schizothorax

Accessions

  • Primary accession
    Q0R3T2

Subcellular Location

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane29-52Helical
Transmembrane87-107Helical
Transmembrane113-133Helical
Transmembrane145-166Helical
Transmembrane178-200Helical
Transmembrane229-250Helical
Transmembrane288-308Helical
Transmembrane320-341Helical
Transmembrane347-372Helical

Keywords

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain1-209Cytochrome b/b6 N-terminal region profile
Domain210-380Cytochrome b/b6 C-terminal region profile

Sequence similarities

Belongs to the cytochrome b family.

Keywords

Family and domain databases

Sequence

  • Sequence status
    Fragment
  • Length
    380
  • Mass (Da)
    42,648
  • Last updated
    2006-09-05 v1
  • MD5 Checksum
    E0869DAEE6C9E7E90E1EA9C60DA0260D
MASLRKTHPLIKIANDALVDLPAPSNISVWWNFGSLLGLCLATQILTGLFLAMHYTSDISTAFSSVTHICRDVNYGWLIRNIHANGASFFFICIYMHIARGLYYGSYLYKETWNIGVVLLLLVMMTAFVGYVLPWGQMSFWGATVITNLLSAVPYMGDMLVQWIWGGFSVDNATLTRFFAFHFLLPFVIAAATVLHLLFLHETGSNNPIGLNSDADKISFHPYFTYKDLLGFVVMLLALTLLALFSPNLLGDPENFTPANPLVTPPHIQPEWYFLFAYAILRSIPNKLGGVLALLFSILVLMVVPLLHTSKQRGLTFRPITQFLFWTLIADMIILTWIGGMPVEHPFIIIGQVASVLYFALFLVFIPLAGWLENKALEWA

Features

Showing features for non-terminal residue.

TypeIDPosition(s)Description
Non-terminal residue380

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
DQ126127
EMBL· GenBank· DDBJ
AAZ95823.1
EMBL· GenBank· DDBJ
Genomic DNA
EU158041
EMBL· GenBank· DDBJ
ABX80257.1
EMBL· GenBank· DDBJ
Genomic DNA
EU158042
EMBL· GenBank· DDBJ
ABX80258.1
EMBL· GenBank· DDBJ
Genomic DNA
EU158044
EMBL· GenBank· DDBJ
ABX80260.1
EMBL· GenBank· DDBJ
Genomic DNA
KC696554
EMBL· GenBank· DDBJ
AGM75817.1
EMBL· GenBank· DDBJ
Genomic DNA
KP796159
EMBL· GenBank· DDBJ
AJW77486.1
EMBL· GenBank· DDBJ
Genomic DNA
KP796160
EMBL· GenBank· DDBJ
AJW77487.1
EMBL· GenBank· DDBJ
Genomic DNA
KP796161
EMBL· GenBank· DDBJ
AJW77488.1
EMBL· GenBank· DDBJ
Genomic DNA
KP796162
EMBL· GenBank· DDBJ
AJW77489.1
EMBL· GenBank· DDBJ
Genomic DNA
KP796163
EMBL· GenBank· DDBJ
AJW77490.1
EMBL· GenBank· DDBJ
Genomic DNA
KP796164
EMBL· GenBank· DDBJ
AJW77491.1
EMBL· GenBank· DDBJ
Genomic DNA
KP796166
EMBL· GenBank· DDBJ
AJW77493.1
EMBL· GenBank· DDBJ
Genomic DNA
KP796167
EMBL· GenBank· DDBJ
AJW77494.1
EMBL· GenBank· DDBJ
Genomic DNA
KP796168
EMBL· GenBank· DDBJ
AJW77495.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

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