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RGD ID: 628627
Species: Rattus norvegicus
RGD Object: Gene
Symbol: Cyp2b3
Name: cytochrome P450, family 2, subfamily b, polypeptide 3
Acc ID: CHEBI:6757
Term: mephenytoin
Definition: An imidazolidine-2,4-dione (hydantoin) in which the imidazolidine nucleus carries a methyl group at N-3 and has ethyl and phenyl substituents at C-5. An anticonvulsant, it is no longer available in the USA or the UK but is still studied largely because of its interesting hydroxylation polymorphism.
Chemical ID: MESH:D008617
Note: Use of the qualifier "multiple interactions" designates that the annotated interaction is comprised of a complex set of reactions and/or regulatory events, possibly involving additional chemicals and/or gene products.
Object SymbolQualifierEvidenceWithReferenceSourceNotesOriginal Reference(s)
Cyp2b3decreases activityISORGD:13467516480464CTDMephenytoin results in decreased activity of CYP2B6 protein

Cyp2b3decreases methylationISORGD:13467516480464CTDCYP2B6 protein results in decreased methylation of Mephenytoin

Cyp2b3increases metabolic processingISORGD:13467516480464CTDCYP2B6 protein results in increased metabolism of Mephenytoin

Cyp2b3multiple interactionsISORGD:13467516480464CTDMephenytoin inhibits the reaction [[isoimperatorin co-treated with NADP] results in decreased activity of CYP2B6 protein] Mephenytoin inhibits the reaction [CYP2B6 protein results in decreased ethylation of 7-ethoxy-4-trifluoromethylcoumarin] Mephenytoin inhibits the reaction [CYP2B6 protein results in increased chemical synthesis of 7-hydroxy-4-trifluoromethylcoumarin]

PMID:25500267 PMID:9241656
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