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A0A455LN37 · A0A455LN37_PALPA

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.

136250100150200250300350
TypeIDPosition(s)Description
Binding site68Fe (UniProtKB | ChEBI) of heme b b562 (UniProtKB | ChEBI); axial binding residue
Binding site82Fe (UniProtKB | ChEBI) of heme b b566 (UniProtKB | ChEBI); axial binding residue
Binding site167Fe (UniProtKB | ChEBI) of heme b b562 (UniProtKB | ChEBI); axial binding residue
Binding site181Fe (UniProtKB | ChEBI) of heme b b566 (UniProtKB | ChEBI); axial binding residue
Binding site186a 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

Accessions

  • Primary accession
    A0A455LN37

Subcellular Location

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane15-38Helical
Transmembrane72-92Helical
Transmembrane98-118Helical
Transmembrane125-150Helical
Transmembrane165-185Helical
Transmembrane214-231Helical
Transmembrane273-293Helical
Transmembrane305-325Helical
Transmembrane331-351Helical

Keywords

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain1-194Cytochrome b/b6 N-terminal region profile
Domain195-362Cytochrome b/b6 C-terminal region profile

Sequence similarities

Belongs to the cytochrome b family.

Keywords

Family and domain databases

Sequence

  • Sequence status
    Fragment
  • Length
    362
  • Mass (Da)
    40,403
  • Last updated
    2019-06-05 v1
  • MD5 Checksum
    36DF8EC399766B820CF9C0C1C31468BE
HSLIDLPTPSNISAWWNFGSLLGLTLLIQILTGVFLMMHFSSSDTTAFSSVAYTSREVWFGWLIRNLHTNGASLFFVFIFLHIGRGLYYASYTHEKTWAVGVIMLFLLMATAFMGYVLPWGQMSFWGATVITNLLSATPYIGDTIVPWIWGGPSVDNATLTRFTALHFLLPFTLLALLITHLIFLHERGSLNPLGLSQNADKIPFHPYYTLKDALGATLAASLLLTFALYLPTLLGDPENFTPANPMTTPSHIKPEWYFLFAYAILRSIPNKLGGVLAMFSSIFILFLVPALHTAKQQPMSVRPLSQLLFWALILDFFVLTWIGGQPVNPPFILMGQIASSLFFITILILMPTLGSLENKMT

Features

Showing features for non-terminal residue.

TypeIDPosition(s)Description
Non-terminal residue1

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
MH846361
EMBL· GenBank· DDBJ
AYN62813.1
EMBL· GenBank· DDBJ
Genomic DNA
MH846362
EMBL· GenBank· DDBJ
AYN62814.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

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