KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
additional information | - |
additional information | Michaelis-Menten kinetics | Homo sapiens | |
4.31 | - |
cimetidine | pH 8.3, S-oxygenation with (+)-enantiomer formation by isozyme FMO1 | Homo sapiens | |
4.56 | - |
cimetidine | pH 8.3, S-oxygenation with (-)-enantiomer formation by isozyme FMO1 | Homo sapiens |
Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
endoplasmic reticulum | - |
Homo sapiens | 5783 | - |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Homo sapiens | - |
FMO multigene family | - |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
kidney | FMO1 is expressed primarily in the kidney and the fetal liver | Homo sapiens | - |
liver | FMO1 is expressed primarily in the kidney and the fetal liver | Homo sapiens | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
cimetidine + NADPH + H+ + O2 | S-oxygenation of cimetidine, i.e. CIM, a histamine H2-receptor antagonist of therapeutic utility in the treatment of peptic ulcer disease and gastric hypersecretory syndromes. Development of in-line screening and an off-line chiral CE method for determination of the stereoselectivity of flavin-containing monooxygenase isoforms FMO1, FMO3, and FMO5 using chiral specific selectors, overview | Homo sapiens | cimetidine S-oxide + NADP+ + H2O | - |
? |
Synonyms | Comment | Organism |
---|---|---|
FMO | - |
Homo sapiens |
FMO1 | - |
Homo sapiens |
FMO3 | - |
Homo sapiens |
FMO5 | - |
Homo sapiens |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
37 | - |
assay at | Homo sapiens |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
8.3 | - |
assay at | Homo sapiens |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
NADPH | - |
Homo sapiens |
General Information | Comment | Organism |
---|---|---|
metabolism | FMOs are involved in Phase I metabolism catalyzing the NADPH-dependent oxygenation of drugs, xenobiotics and endogenous compounds containing a soft nucleophilic heteroatom, typically nitrogen or sulfur, but in some cases also selenium or phosphorous | Homo sapiens |