"Cytochrome P-450 Enzyme System" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
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.
| Descriptor ID |
D003577
|
| MeSH Number(s) |
D08.244.453 D08.811.682.690.708.170 D12.776.422.220.453
|
| Concept/Terms |
Cytochrome P-450 Enzyme System- Cytochrome P-450 Enzyme System
- Cytochrome P 450 Enzyme System
- Cytochrome P450
- P-450 Enzymes
- Enzymes, P-450
- P 450 Enzymes
- P450 Enzymes
- Enzymes, P450
- CYP450 Family
- Cytochrome P450 Superfamily
- Superfamily, Cytochrome P450
- Cytochrome P-450 Superfamily
- Cytochrome P 450 Superfamily
- Superfamily, Cytochrome P-450
- Cytochrome p450 Families
- Cytochrome P-450 Families
- Cytochrome P 450 Families
- CYP450 Superfamily
- Superfamily, CYP450
- Cytochrome P-450
- Cytochrome P 450
- Cytochrome P-450 Enzymes
- Cytochrome P 450 Enzymes
- Enzymes, Cytochrome P-450
- P-450 Enzymes, Cytochrome
Cytochrome P-450 Monooxygenase- Cytochrome P-450 Monooxygenase
- Cytochrome P 450 Monooxygenase
- Monooxygenase, Cytochrome P-450
- Cytochrome P-450-Dependent Monooxygenase
- Cytochrome P 450 Dependent Monooxygenase
- Monooxygenase, Cytochrome P-450-Dependent
|
Below are MeSH descriptors whose meaning is more general than "Cytochrome P-450 Enzyme System".
Below are MeSH descriptors whose meaning is more specific than "Cytochrome P-450 Enzyme System".
This graph shows the total number of publications written about "Cytochrome P-450 Enzyme System" by people in this website by year, and whether "Cytochrome P-450 Enzyme System" was a major or minor topic of these publications.
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| Year | Major Topic | Minor Topic | Total |
|---|
| 2005 | 0 | 1 | 1 |
| 2011 | 1 | 0 | 1 |
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Below are the most recent publications written about "Cytochrome P-450 Enzyme System" by people in Profiles.
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Activity levels of tamoxifen metabolites at the estrogen receptor and the impact of genetic polymorphisms of phase I and II enzymes on their concentration levels in plasma. Clin Pharmacol Ther. 2011 May; 89(5):708-17.
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Identification of a new HLA-A*0201-restricted cryptic epitope from CYP1B1. Int J Cancer. 2005 Jun 10; 115(2):333-6.
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Effect of orotic acid on the generation of reactive oxygen and on lipid peroxidation in rat liver. Toxicology. 1991 Feb; 66(2):197-212.
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Regulation and expression of four cytochrome P-450 isoenzymes, NADPH-cytochrome P-450 reductase, the glutathione transferases B and C and microsomal epoxide hydrolase in preneoplastic and neoplastic lesions in rat liver. Carcinogenesis. 1985 Apr; 6(4):513-21.
MeSH information
