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After phase II reactions, the xenobiotic conjugates may be further metabolised. A common example is the processing of glutathione conjugates to acetylcysteine (mercapturic acid) conjugates. [7] Here, the γ-glutamate and glycine residues in the glutathione molecule are removed by Gamma-glutamyl transpeptidase and dipeptidases.
One example is the N-glucuronidation of an aromatic amine, 4-aminobiphenyl, by UGT1A4 or UGT1A9 from human, rat, or mouse liver. [ 2 ] The substances resulting from glucuronidation are known as glucuronides (or glucuronosides) and are typically much more water - soluble than the non-glucuronic acid-containing substances from which they were ...
Drug metabolism is the metabolic breakdown of drugs by living organisms, usually through specialized enzymatic systems. More generally, xenobiotic metabolism (from the Greek xenos "stranger" and biotic "related to living beings") is the set of metabolic pathways that modify the chemical structure of xenobiotics, which are compounds foreign to an organism's normal biochemistry, such as any drug ...
[1] [2] The effect is most associated with orally administered medications, but some drugs still undergo first-pass metabolism even when delivered via an alternate route (e.g., IV, IM, etc.). [3] During this metabolism, drug is lost during the process of absorption which is generally related to the liver and gut wall. The liver is the major ...
[2] [3] There are two distinct phases in the pathway. The first is the oxidative phase, in which NADPH is generated, and the second is the non-oxidative synthesis of five-carbon sugars. For most organisms, the pentose phosphate pathway takes place in the cytosol; in plants, most steps take place in plastids. [4]
There are two phases of the insulin secretion, the first phase involves the L-type Ca 2+ channels and the second phase involves the R-type Ca 2+ channels. The Ca 2+ influx generated by R-type Ca 2+ channels is not enough to cause insulin exocytosis, however, it increases the mobilization of the vesicles towards the cell membrane. [4]
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1559 72303 Ensembl ENSG00000138109 ENSMUSG00000067231 UniProt P11712 n/a RefSeq (mRNA) NM_000771 NM_028191 RefSeq (protein) NP_000762 n/a Location (UCSC) Chr 10: 94.94 – 94.99 Mb Chr 19: 39.05 – 39.08 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Cytochrome P450 family 2 subfamily C member 9 (abbreviated CYP2C9) is an enzyme protein. The enzyme is involved in the metabolism, by ...