A0AA49J1G1 · A0AA49J1G1_9TELE

  • Protein
    Cytochrome b
  • Gene
    cytb
  • Status
    UniProtKB unreviewed (TrEMBL)
  • Amino acids
  • Protein existence
    Predicted
  • Annotation score
    2/5

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 (UniProtKB | Rhea| CHEBI:30413 )

Note: Binds 2 heme groups non-covalently.

Features

Showing features for binding site.

136950100150200250300350
TypeIDPosition(s)Description
Binding site70Fe (UniProtKB | ChEBI) of heme b b562 (UniProtKB | ChEBI); axial binding residue
Binding site84Fe (UniProtKB | ChEBI) of heme b b566 (UniProtKB | ChEBI); axial binding residue
Binding site169Fe (UniProtKB | ChEBI) of heme b b562 (UniProtKB | ChEBI); axial binding residue
Binding site183Fe (UniProtKB | ChEBI) of heme b b566 (UniProtKB | ChEBI); axial binding residue
Binding site188a 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
  • Alternative names
    • Complex III subunit 3
    • Complex III subunit III
    • Cytochrome b-c1 complex subunit 3
    • Ubiquinol-cytochrome-c reductase complex cytochrome b subunit

Gene names

    • Name
      cytb

Encoded on

  • Mitochondrion

Organism names

  • Taxonomic identifier
  • Organism
  • Strains
    • LM01
    • LM02
  • Taxonomic lineage
    Eukaryota > Metazoa > Chordata > Craniata > Vertebrata > Euteleostomi > Actinopterygii > Neopterygii > Teleostei > Neoteleostei > Acanthomorphata > Ovalentaria > Ambassidae > Ambassis

Accessions

  • Primary accession
    A0AA49J1G1

Subcellular Location

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane20-43Helical
Transmembrane64-85Helical
Transmembrane100-120Helical
Transmembrane132-153Helical
Transmembrane165-187Helical
Transmembrane216-237Helical
Transmembrane275-295Helical
Transmembrane307-327Helical
Transmembrane333-356Helical

Keywords

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain6-191Cytochrome b/b6 N-terminal region profile
Domain245-346Cytochrome b/b6 C-terminal region profile

Keywords

Family and domain databases

Sequence

  • Sequence status
    Fragment
  • Length
    369
  • Mass (Da)
    41,089
  • Last updated
    2024-01-24 v1
  • Checksum
    AC3BF5DBF2C98A49
ANDALADLPVPASISAWWNFGSLLGLCLATQILTGLFLAMHYTSDIATAFSSVAHICRDVNYGWLIRNLHANGASFFFICIYLHIGRGLYYGSYLYKETWNIGVILLLLVMMTAFVGYVLPWGQMSFWGATVITNLLSAIPYVGNSLVQWIWGGFSVDNATLTRFFAFHFLLPFIIAAATLVHLIFLHETGSNNPLGLNADADKVSFHPYFSYKDVLGFAVLLIALISLALFFPNLLGDPDNFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVLALLSSILVLLLVPILHTCKQRSLTFRPISQVLFWILVADVVILTWIGGMPVEHPYIIIGQFASILYFLMFLVFIPLAGWVENKMLESPCT

Features

Showing features for non-terminal residue.

TypeIDPosition(s)Description
Non-terminal residue1
Non-terminal residue369

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
OL884641
EMBL· GenBank· DDBJ
WIV81607.1
EMBL· GenBank· DDBJ
Genomic DNA
OL884642
EMBL· GenBank· DDBJ
WIV81608.1
EMBL· GenBank· DDBJ
Genomic DNA

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