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Cytochrome b
Symbols CYTB ; MTCYB
External IDs OMIM516020 MGI102501 HomoloGene5013 GeneCards: CYTB Gene
Species Human Mouse
Entrez 4519 17711
Ensembl ENSG00000198727 ENSMUSG00000064370
UniProt P00156 P00158
RefSeq (mRNA) n/a n/a
RefSeq (protein) n/a NP_904340
Location (UCSC) Chr MT:
0.01 – 0.02 Mb
Chr MT:
0.01 – 0.02 Mb
PubMed search [1] [2]

Cytochrome b is a protein that in humans is encoded by the MT-CYB gene.[1]

Its gene product is a subunit of the respiratory chain protein Ubiquinol Cytochrome c Reductase (UQCR, Complex III or Cytochrome bc1 complex), which consists of the products of one mitochondrially encoded gene, MTCYTB (mitochondrial cytochrome b) and ten nuclear genes: UQCRC1, UQCRC2, Cytochrome c1, UQCRFS1 (Rieske protein), UQCRB, "11kDa protein", UQCRH (cyt c1 Hinge protein), Rieske Protein presequence, "cyt. c1 associated protein", and Rieske-associated protein.


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