A0A0B5EAX1 · A0A0B5EAX1_TERCA

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.

136150100150200250300350
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

Gene names

    • Name
      cytb

Encoded on

  • Mitochondrion

Organism names

Accessions

  • Primary accession
    A0A0B5EAX1

Subcellular Location

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane20-40Helical
Transmembrane76-96Helical
Transmembrane102-120Helical
Transmembrane132-153Helical
Transmembrane165-187Helical
Transmembrane216-237Helical
Transmembrane275-294Helical
Transmembrane306-327Helical
Transmembrane333-353Helical

Keywords

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain1-196Cytochrome b/b6 N-terminal region profile
Domain197-361Cytochrome b/b6 C-terminal region profile

Sequence similarities

Belongs to the cytochrome b family.

Keywords

Family and domain databases

Sequence

  • Sequence status
    Fragment
  • Length
    361
  • Mass (Da)
    40,618
  • Last updated
    2015-04-01 v1
  • MD5 Checksum
    A970534BAF3C0618569B1B6CCE9B0AEF
INNSFIDLPSPSNISAWWNFGSLLRTCLILQTITGIFLAMHYSPDISLAFSSVAHITRDVQYGWLIRNMHANGASLFFMCIYLHIGRGIYYGSYLYKETWNTGTTLLLLTMATAFVGYVLPWGQMSFWGATVITNLLSAIPYVGNTLVQWIWGGFSVDNATLTRFFTFHFLLPFTIMGLTVMHLLFLHETGSNNPTGLNSNTDKIPFHPYFSYKDLLGLILMLALLLTLALFFPNLLGDPDNFTPANPLSTPPHIKPEWYFLFAYAILRSIPNKLGGVLALLMSILVLFLMPALHTSKQRTTQFRPLTQILFWSLIANLLVLTWIGGQPVENPFIIIGQVASILYFSILLILMPMAGMIEN

Features

Showing features for non-terminal residue.

TypeIDPosition(s)Description
Non-terminal residue1
Non-terminal residue361

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
KF059102
EMBL· GenBank· DDBJ
AJE60688.1
EMBL· GenBank· DDBJ
Genomic DNA
KF059103
EMBL· GenBank· DDBJ
AJE60689.1
EMBL· GenBank· DDBJ
Genomic DNA
KF059105
EMBL· GenBank· DDBJ
AJE60691.1
EMBL· GenBank· DDBJ
Genomic DNA
KF059107
EMBL· GenBank· DDBJ
AJE60693.1
EMBL· GenBank· DDBJ
Genomic DNA
KF059108
EMBL· GenBank· DDBJ
AJE60694.1
EMBL· GenBank· DDBJ
Genomic DNA
KF059109
EMBL· GenBank· DDBJ
AJE60695.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

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