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Cytochrome P-450 Enzyme System

"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.

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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.


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This graph shows the total number of publications written about "Cytochrome P-450 Enzyme System" by people in UAMS Profiles by year, and whether "Cytochrome P-450 Enzyme System" was a major or minor topic of these publications.
Bar chart showing 137 publications over 31 distinct years, with a maximum of 9 publications in 2003 and 2005
To see the data from this visualization as text, click here.