Cytochrome c

CYCS
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesCYCS, CYC, HCS, THC4, cytochrome c, somatic, Cytochrome c, cyt c
External IDsOMIM: 123970; MGI: 88578; HomoloGene: 133055; GeneCards: CYCS; OMA:CYCS - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_018947

NM_007808

RefSeq (protein)

NP_061820

NP_031834

Location (UCSC)Chr 7: 25.12 – 25.13 MbChr 6: 50.54 – 50.54 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse
Heme prosthetic group of cytochrome c, consisting of a rigid porphyrin ring coordinated with an iron atom.

The cytochrome complex, or cyt c, is a small hemeprotein found loosely associated with the inner membrane of the mitochondrion where it plays a critical role in cellular respiration. It transfers electrons between Complexes III (Coenzyme Q – Cyt c reductase) and IV (Cyt c oxidase). Cytochrome c is highly water-soluble, unlike other cytochromes. It is capable of undergoing oxidation and reduction as its iron atom converts between the ferrous and ferric forms, but does not bind oxygen. It also plays a major role in cell apoptosis. In humans, cytochrome c is encoded by the CYCS gene.[5][6]

  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000172115Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000063694Ensembl, May 2017
  3. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. ^ "Entrez Gene: cytochrome c".
  6. ^ Tafani M, Karpinich NO, Hurster KA, Pastorino JG, Schneider T, Russo MA, et al. (March 2002). "Cytochrome c release upon Fas receptor activation depends on translocation of full-length bid and the induction of the mitochondrial permeability transition". The Journal of Biological Chemistry. 277 (12): 10073–82. doi:10.1074/jbc.M111350200. PMID 11790791.