Cytochromes

Medical Condition:
Cytochromes

Hemeproteins whose characteristic mode of action involves transfer of reducing equivalents associated with a reversible change in oxidation state of the prosthetic group. Formally, this redox change involves a single-electron, reversible equilibrium between the Fe(II) and Fe(III) states of the central iron atom. (From Enzyme Nomenclature, 1992, p539)