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A0A482E360 · A0A482E360_PALTR

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.

134050100150200250300
TypeIDPosition(s)Description
Binding site46Fe (UniProtKB | ChEBI) of heme b b562 (UniProtKB | ChEBI); axial binding residue
Binding site60Fe (UniProtKB | ChEBI) of heme b b566 (UniProtKB | ChEBI); axial binding residue
Binding site145Fe (UniProtKB | ChEBI) of heme b b562 (UniProtKB | ChEBI); axial binding residue
Binding site159Fe (UniProtKB | ChEBI) of heme b b566 (UniProtKB | ChEBI); axial binding residue
Binding site164a 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
  • Strains
    • CTGAH2229_135PortoVelho
    • CTGAH2647_137PortoVelho
    • CTGAH3657_130Humaita
  • Taxonomic lineage
    Eukaryota > Metazoa > Chordata > Craniata > Vertebrata > Euteleostomi > Archelosauria > Archosauria > Crocodylia > Alligatoridae > Caimaninae > Paleosuchus

Accessions

  • Primary accession
    A0A482E360

Subcellular Location

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane48-66Helical
Transmembrane78-97Helical
Transmembrane103-129Helical
Transmembrane141-162Helical
Transmembrane254-274Helical
Transmembrane286-303Helical
Transmembrane315-335Helical

Keywords

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain1-172Cytochrome b/b6 N-terminal region profile
Domain173-340Cytochrome b/b6 C-terminal region profile

Sequence similarities

Belongs to the cytochrome b family.

Keywords

Family and domain databases

Sequence

  • Sequence status
    Fragment
  • Length
    340
  • Mass (Da)
    38,037
  • Last updated
    2019-06-05 v1
  • MD5 Checksum
    A980E918647A836FA65B8715AF4BD9E2
GLALLIQILTGVFLMMHFSSSDTAAFPSVAYTSREVWFGWLIRSLHTNGASLFFMFIFLHIGRGLYYASYAHENTWNVGVMMLFLLMATAFMGYVLPWGQMSFWGATVITNLLSAIPYIGDTIVPWIWGGPSVDNATLTRFTALHFLLPFALLALLITHLIFLHERGSFNPLGLDLNADKIPFHPYYTLKDALGATLAASLLLTLALYLPTLLSDPENFTPANPMTTPSHIKPEWYFLFAYAILRSIPNKLGGVLAMFFSIFILFLVPAIHTTKQQPMSIRPPSQLLFWALILDFFVLTWIGGQPVNPPYTLMGQIASLLFFTIILILMPTLGSLENKMA

Features

Showing features for non-terminal residue.

TypeIDPosition(s)Description
Non-terminal residue1
Non-terminal residue340

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
MH757602
EMBL· GenBank· DDBJ
QBM14006.1
EMBL· GenBank· DDBJ
Genomic DNA
MH757607
EMBL· GenBank· DDBJ
QBM14011.1
EMBL· GenBank· DDBJ
Genomic DNA
MH757609
EMBL· GenBank· DDBJ
QBM14013.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

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