Rabbit anti-Cytochrome P450 1A1 / 1A2 (aa 282-296) polyclonal antibody for ELISA, WB. Cytochrome P450 oxidase (commonly abbreviated CYP) is a generic term for a large number of related, but distinct, oxidative enzymes important in vertebrate physiology. The cytochrome P450 mixed-function monooxygenase system is probably the most important