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Gene information for FMO3 (Homo sapiens)
(Information is obtained from NCBI Gene database)
Entrez gene ID2328
Official gene symbolFMO3
Full nameflavin containing monooxygenase 3
Aliases,FMOII,MGC34400,TMAU,dJ127D3.1,
Gene summaryFlavin-containing monooxygenases (FMO) are an important class of drug-metabolizing enzymes that catalyze the NADPH-dependent oxygenation of various nitrogen-,sulfur-, and phosphorous-containing xenobiotics such as therapeutic drugs, dietary compounds, pesticides, and other foreign compounds. The human FMO gene family is composed of 5 genes and multiple pseudogenes. FMO members have distinct developmental- and tissue-specific expression patterns. The expression of this FMO3 gene, the major FMO expressed in adult liver, can vary up to 20-fold between individuals. This inter-individual variation in FMO3 expression levels is likely to have significant effects on the rate at which xenobiotics are metabolised and, therefore, is of considerable interest to the pharmaceutical industry. This transmembrane protein localizes to the endoplasmic reticulum of many tissues. Alternative splicing of this gene results in multiple transcript variants encoding the same protein. Mutations in this gene cause the disorder trimethylaminuria (TMAu) which is characterized by the accumulation and excretion of unmetabolized trimethylamine and a distinctive body odor. In healthy individuals, trimethylamine is primarily converted to the non odorous trimethylamine N-oxide.
LocationChromosome: 1   Locus: 1q23-q25
Gene position171060018 - 171086959  Map Viewer
Gene orientationplus
Gene size26942 bp
Gene sequence
OMIM ID136132