cytochrome c

[Yespasmn 0]

the most abundant and stable cytochrome; involved in energy transfer

[Taksi154r]

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.

[Tina]

Cytochrome C is a small heme protein found loosely associated with the inner membrane of the mitochondrion. It is a component of the electron transport chain in the mitochondria, where it accepts electrons from the b-type cytochromes and transfers them to cytochrome oxidase. In addition to its role in energy production, cytochrome C plays a key role in the initiation of apoptosis, or programmed cell death.