Cytochrome P-450 Enzyme System. CYP450 Family . CYP450 Superfamily . Cytochrome P-450 Enzymes . Cytochrome P-450 Families . Cytochrome P-450 Monooxygenase . Cytochrome P-450 Oxygenase . Cytochrome P-450 Superfamily . Cytochrome P450 . Cytochrome P450 Superfamily . Cytochrome p450 Families . P-450 Enzymes . P450 Enzymes . Cytochrome P 450 . Cytochrome P 450 Dependent Monooxygenase . Cytochrome P 450 Enzyme System . Cytochrome P 450 Enzymes . Cytochrome P 450 Families . Cytochrome P 450 Monooxygenase . Cytochrome P 450 Oxygenase . Cytochrome P 450 Superfamily . Enzymes, Cytochrome P-450 . Enzymes, P-450 . Enzymes, P450 . Monooxygenase, Cytochrome P-450 . Monooxygenase, Cytochrome P-450-Dependent . P 450 Enzymes . P-450 Enzymes, Cytochrome . Superfamily, CYP450 . Superfamily, Cytochrome P-450 . Superfamily, Cytochrome P450 . Cytochrome P-450 . Cytochrome P-450-Dependent Monooxygenase . A superfamily of hundreds of closely related HEMEPROTEINS found throughout the phylogenetic spectrum, from animals, plants, fungi, to bacteria. They include numerous complex monooxygenases (MIXED FUNCTION OXYGENASES). In animals, these P-450 enzymes serve two major functions: (1) biosynthesis of steroids, fatty acids, and bile acids; (2) metabolism of endogenous and a wide variety of exogenous substrates, such as toxins and drugs (BIOTRANSFORMATION). They are classified, according to their sequence similarities rather than functions, into CYP gene families (>40% homology) and subfamilies (>59% homology). For example, enzymes from the CYP1, CYP2, and CYP3 gene families are responsible for most drug metabolism. . 1.00
Cytochrome P-450 CYP2E1. CYP 2E1 . CYP IIE1 . CYPIIE1 . Cytochrome P-450 (ALC) . Cytochrome P-450 IIE1 . Cytochrome P-450-J . Cytochrome P450 2E1 . N-Nitrosodimethylamine Demethylase . 4 Nitrophenol 2 Hydroxylase . Cytochrome P 450 CYP2E1 . Cytochrome P 450 IIE1 . Cytochrome P 450 J . Dimethylnitrosamine N Demethylase . N Nitrosodimethylamine Demethylase . CYP2E1 . Dimethylnitrosamine N-Demethylase . 4-Nitrophenol-2-Hydroxylase . An ethanol-inducible cytochrome P450 enzyme that metabolizes several precarcinogens, drugs, and solvents to reactive metabolites. Substrates include ETHANOL; INHALATION ANESTHETICS; BENZENE; ACETAMINOPHEN and other low molecular weight compounds. CYP2E1 has been used as an enzyme marker in the study of alcohol abuse. . 0.89
Camphor 5-Monooxygenase. CYP101 . Camphor-5-Monooxygenase . Cytochrome P-450 101 . Cytochrome P-450-cam . Cytochrome P450(cam) . P450cam . Camphor 5 Monooxygenase . Cytochrome P 450 101 . Cytochrome P 450 cam . Cytochrome P-450(cam) . A soluble cytochrome P-450 enzyme that catalyzes camphor monooxygenation in the presence of putidaredoxin, putidaredoxin reductase, and molecular oxygen. This enzyme, encoded by the CAMC gene also known as CYP101, has been crystallized from bacteria and the structure is well defined. Under anaerobic conditions, this enzyme reduces the polyhalogenated compounds bound at the camphor-binding site. . 0.88
Aromatase. Androstenedione Aromatase . CYP 19 . CYP19 Protein . Cytochrome P450 19 . Estrogen Synthase . Estrogen Synthetase . P450AROM . Aromatase, Androstenedione . Cytochrome P 450 CYP19 . Protein, CYP19 . Cytochrome P-450(AROM) . Cytochrome P-450 CYP19 . CYP19 . An enzyme that catalyzes the desaturation (aromatization) of the ring A of C19 androgens and converts them to C18 estrogens. In this process, the 19-methyl is removed. This enzyme is membrane-bound, located in the endoplasmic reticulum of estrogen-producing cells of ovaries, placenta, testes, adipose, and brain tissues. Aromatase is encoded by the CYP19 gene, and functions in complex with NADPH-FERRIHEMOPROTEIN REDUCTASE in the cytochrome P-450 system. . 0.88