EC Number | Protein Variants | Comment | Organism |
---|---|---|---|
1.14.13.8 | additional information | generation of humanized-liver TK-NOG mice, chimeric mice, in which more than 90% of liver cells are estimated to have been replaced with human hepatocytes, interactions between FMO substrates in humanized-liver mice, overview. Administered itopride (10 mg/kg) is extensively oxygenated to its N-oxide in humanized-liver mouse plasma. The area under the concentration-time curve of itopride N-oxide is 15fold that of itopride in humanize-liver mice | Homo sapiens |
EC Number | Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|---|
1.14.13.8 | membrane | - |
Homo sapiens | 16020 | - |
1.14.13.8 | microsome | - |
Homo sapiens | - |
- |
EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
1.14.13.8 | itopride + NADPH + H+ + O2 | Homo sapiens | - |
itopride N-oxide + NADP+ + H2O | - |
? | |
1.14.13.8 | N,N-dimethylaniline + NADPH + H+ + O2 | Homo sapiens | - |
N,N-dimethylaniline N-oxide + NADP+ + H2O | - |
? | |
1.14.13.8 | trimethylamine + NADPH + H+ + O2 | Homo sapiens | - |
trimethylamine N-oxide + NADP+ + H2O | - |
? |
EC Number | Organism | UniProt | Comment | Textmining |
---|---|---|---|---|
1.14.13.8 | Homo sapiens | P31513 | - |
- |
EC Number | Source Tissue | Comment | Organism | Textmining |
---|---|---|---|---|
1.14.13.8 | liver | human FMO3 protein is predominantly expressed in the liver | Homo sapiens | - |
EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
1.14.13.8 | itopride + NADPH + H+ + O2 | - |
Homo sapiens | itopride N-oxide + NADP+ + H2O | - |
? | |
1.14.13.8 | N,N-dimethylaniline + NADPH + H+ + O2 | - |
Homo sapiens | N,N-dimethylaniline N-oxide + NADP+ + H2O | - |
? | |
1.14.13.8 | trimethylamine + NADPH + H+ + O2 | - |
Homo sapiens | trimethylamine N-oxide + NADP+ + H2O | - |
? |
EC Number | Synonyms | Comment | Organism |
---|---|---|---|
1.14.13.8 | flavin-containing monooxygenase 3 | - |
Homo sapiens |
1.14.13.8 | FMO3 | - |
Homo sapiens |
EC Number | Cofactor | Comment | Organism | Structure |
---|---|---|---|---|
1.14.13.8 | FAD | - |
Homo sapiens | |
1.14.13.8 | NADPH | - |
Homo sapiens |
EC Number | General Information | Comment | Organism |
---|---|---|---|
1.14.13.8 | malfunction | genetic mutations in FMO3 can cause trimethylaminuria (or fish-odor syndrome) as a result of impaired N-oxygenation of food-derived trimethylamine | Homo sapiens |
1.14.13.8 | physiological function | human FMO3 protein exhibits marked individual variability in oxygenation activities, analysis of in vivo pharmacokinetics of itopride and trimethylamine-d9 and their N-oxygenated metabolites after co-administrations in humanized-liver mice, modeling of physiologically based pharmacokinetic (PBPK) and formation of models for itopride and its N-oxide consisting of receptor (gut), metabolizing (liver), and central compartments, overview | Homo sapiens |