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Cytochrome C is an electron transporting protein that resides within the intermembrane space of the mitochondria, where it plays a critical role in oxidative phosphorylation and the production of cellular ATP. Release of cytochrome C from the mitochondria to the cytosol is triggered by apoptotic stimuli. In the cytoplasm, the cytochrome C binds apoptotic protease activating factor which activates the apoptotic initiator procaspase 9. Cytosolic cytochrome C functions in the activation of caspase 3, an ICE family molecule that is a key effector of apoptosis.
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Protein Aliases: Cytochrome c; Cytochrome C, expressed in somatic tissues; Cytochrome c, somatic; hc1
Gene Aliases: CYC; CYCS; CYCSA; HCS; THC4
UniProt ID: (Human) P99999, (Chicken) P67881, (Mouse) P62897, (Rat) P62898
Entrez Gene ID: (Human) 54205, (Chicken) 420624, (Mouse) 13063, (Rat) 25309, (Rabbit) 100341175, (Rabbit) 100357840
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