FMO4


Summary: Metabolic N-oxidation of diet-derived amino-trimethylamine (TMA) is mediated by flavin-containing monooxygenase and is subject to an inherited FMO3 polymorphism in man. This results in a small subpopulation with reduced TMA N-oxidation capacity and causes fish odor syndrome (Trimethylaminuria). Three forms of the enzyme are encoded by genes clustered in the 1q23-q25 region. Flavin-containing monooxygenases are NADPH-dependent flavoenzymes that catalyzes the oxidation of soft nucleophilic heteroatom centers in drugs, pesticides, and xenobiotics. [provided by RefSeq, Jan 2015].

NameOMIM IDEnsembl IDHGNC IDPHARMGKB IDMap Location
flavin containing monooxygenase 4MIM:136131Ensembl:ENSG00000076258HGNC:HGNC:3772PA281881q24.3

GO terms in FMO4


Term TypeEvidence TypeGO Term IDGO Des.
BPIEAGO:0042737drug catabolic process
CCIEAGO:0005789endoplasmic reticulum membrane
CCIEAGO:0016021integral component of membrane
CCIEAGO:0031090organelle membrane
MFIBAGO:0004497monooxygenase activity
MFNASGO:0004499N,N-dimethylaniline monooxygenase activity
MFIEAGO:0050660flavin adenine dinucleotide binding
MFIEAGO:0050661NADP binding

Gene expression in normal tissue: FMO4

Gene-model tissue-cancer distribution: Bubble Plot

Gene-drug pathway distribution

Pathways in FMO4


DatabasePathway IDPathway Des.
pharmgkbPA165374494Busulfan Pathway, Pharmacodynamics
kegghsa00982Drug metabolism - cytochrome P450 - Homo sapiens (human)
humancycPWY66-201nicotine degradation IV
wikipathwaysWP688Catalytic cycle of mammalian Flavin-containing MonoOxygenases (FMOs)
wikipathwaysWP702Metapathway biotransformation Phase I and II

Gene-Drug: Aster Plot


Drug IDDrug NameModel Num.
iGMDRD61Kinetin riboside4
iGMDRD466Chaetocin3
iGMDRD280CYTOCHALASIN B2
iGMDRD297Austocystin D2
iGMDRD634SCHEMBL26080412
iGMDRD151CHM-12
iGMDRD599Salermide5
iGMDRD670ML 2102
iGMDRD887Compound 23 citrate3
iGMDRD188Piperlongumine1
iGMDRD662JQ-13
iGMDRD577BIX012946
iGMDRD888Compound 443
iGMDRD64Parbendazole2
iGMDRD474Avrainvillamide1
iGMDRD270Ciclosporin4
iGMDRD298L-6854583
iGMDRD318PAC-18
iGMDRD415LE-1352

Gene in drug-gene network: Network Plot

Gene-drug targets distribution

Gene Structure: PDB

Models in FMO4

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