FMO3

Flavin-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 different isoforms. 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. [provided by RefSeq, Jan 2016]

Description

Flavin containing dimethylaniline monoxygenase 3

Tissue specificity

Tissue enriched (liver)

Predicted location

Intracellular, Membrane

Protein family

Disease related genes
Enzymes
Human disease related genes
Mapped to neXtProt
Mapped to UniProt SWISS-PROT
Metabolic proteins
Potential drug targets
Predicted intracellular proteins
Predicted membrane proteins
Protein evidence (Ezkurdia et al 2014)
Protein evidence (Kim et al 2014)

Chromosome

1 (171090901 - 171117819)

Ensembl ID

ENSG00000007933  (ver. 103.38)

Orthologs

Mouse Fmo3: ENSMUSG00000026691

UniProt

P31513

neXtProt

NX_P31513

Human splice variants
Mouse splice variants

Protein structure