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Cytochrome P450 3A4 (abbreviated CYP3A4) (EC 1.14.13.97) is an important enzyme in the body, mainly found in the liver and in the intestine, which in humans is encoded by CYP3A4 gene. It oxidizes small foreign organic molecules ( xenobiotics ), such as toxins or drugs, so that they can be removed from the body.
n/a Ensembl n/a n/a UniProt n a n/a RefSeq (mRNA) NM_000775 n/a RefSeq (protein) n/a n/a Location (UCSC) n/a n/a PubMed search n/a Wikidata View/Edit Human Cytochrome P450, family 3, subfamily A, also known as CYP3A, is a human gene locus. A homologous locus is found in mice. The CYP3A locus includes all the known members of the 3A subfamily of the cytochrome P450 superfamily of genes. These ...
"The Life Raft Group: Long List of Inhibitors and Inducers of CYP3A4 and CYP2D6". "DRUGBANK Online: Cytochrome P-450 Enzyme Inhibitors" . "MEDICATIONS METABOLIZED BY CYTOCHROME P450 3A4" (PDF) .
CYP3A5 encodes a member of the cytochrome P450 superfamily of enzymes. Like most of the cytochrome P450, the CYP3A5 is expressed in the prostate and the liver. [5] It is also expressed in epithelium of the small intestine and large intestine for uptake and in small amounts in the bile duct, nasal mucosa, kidney, adrenal cortex, epithelium of the gastric mucosa with intestinal metaplasia ...
The fluctuation in the amount of CYP450 enzymes (CYP1A2, CYP2C8, CYP2C9, CYP2C19, CYP2D6, CYP3A4, and CYP3A5) in phase 1 (detoxification) can have varying effects on individuals, as genetic expression varies from person to person. This variation is due to the enzyme's genetic polymorphism, which leads to variability in its function and expression.
CYP3A4 is a metabolizing enzyme for almost 50% of drugs, and is found in the liver and small intestinal epithelial cells. [19] Organic derivatives of furanocoumarin interfere with liver and intestinal enzyme CYP3A4 and may be responsible for the effects of grapefruit on the enzyme. [ 20 ]
Cobicistat is a potent inhibitor of cytochrome P450 3A enzymes, including the important CYP3A4 subtype. It also inhibits intestinal transport proteins, increasing the overall absorption of several HIV medications, including atazanavir, darunavir, and tenofovir alafenamide. [5]
1551 13113 Ensembl ENSG00000160870 ENSMUSG00000029727 UniProt P24462 Q64464 RefSeq (mRNA) NM_000765 NM_007819 RefSeq (protein) NP_000756 NP_031845 Location (UCSC) Chr 7: 99.71 – 99.74 Mb Chr 5: 137.89 – 137.92 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse CYP3A7 is an enzyme belonging to the cytochrome P450 family. It is 503 amino acids in size and shares 87% of its sequence ...