======= FMO3 ======= == Gene Information == * **Official Symbol**: FMO3 * **Official Name**: flavin containing dimethylaniline monoxygenase 3 * **Aliases and Previous Symbols**: N/A * **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=2328|2328]] * **UniProt**: [[https://www.uniprot.org/uniprot/P31513|P31513]] * **Interactions**: [[https://thebiogrid.org/search.php?search=FMO3&organism=9606|BioGRID]] * **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20FMO3|Open PubMed]] * **OMIM**: [[https://omim.org/entry/136132|Open OMIM]] == Function Summary == * **Entrez Summary**: 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]. * **UniProt Summary**: Involved in the oxidative metabolism of a variety of xenobiotics such as drugs and pesticides. It N-oxygenates primary aliphatic alkylamines as well as secondary and tertiary amines. Plays an important role in the metabolism of trimethylamine (TMA), via the production of TMA N-oxide (TMAO). Is also able to perform S-oxidation when acting on sulfide compounds (PubMed:9224773). {ECO:0000250|UniProtKB:P97501, ECO:0000269|PubMed:9224773}. |Pyr redox 2| |FMO-like| |trimethylamine monooxygenase activity| |N,N-dimethylaniline monooxygenase activity| |monooxygenase activity| |NADP binding| |flavin adenine dinucleotide binding| |xenobiotic metabolic process| |cellular response to xenobiotic stimulus| |response to xenobiotic stimulus| |intracellular membrane-bounded organelle| |endoplasmic reticulum membrane| |oxidation-reduction process| \\ === CRISPR Data === ^Screen^Score^ |[[:results:exp272|CHIR-124 0.04μM R06 exp272]]|-1.9| |[[:results:exp363|GSK-J4 1-1.25μM to day4 R07 exp363]]|-1.75| |[[:results:exp512|Olaparib 4μM R08 exp512]]|1.72| |[[:results:exp492|iCRT14 30μM R08 exp492]]|1.75| No correlation found to any other genes in chemogenomics. Global Fraction of Cell Lines Where Essential: 0/739 ^Tissue^Fraction Of Cell Lines Where Essential^ |1290807.0|0/1| |909776.0|0/1| |bile duct|0/28| |blood|0/28| |bone|0/26| |breast|0/33| |central nervous system|0/56| |cervix|0/4| |colorectal|0/17| |esophagus|0/13| |fibroblast|0/1| |gastric|0/16| |kidney|0/21| |liver|0/20| |lung|0/75| |lymphocyte|0/16| |ovary|0/26| |pancreas|0/24| |peripheral nervous system|0/16| |plasma cell|0/15| |prostate|0/1| |skin|0/24| |soft tissue|0/9| |thyroid|0/2| |upper aerodigestive|0/22| |urinary tract|0/29| |uterus|0/5| == Essentiality in NALM6 == * **Essentiality Rank**: 6263 * **Expression level (log2 read counts)**: 1.3 {{:chemogenomics:nalm6 dist.png?nolink |}}