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Aliases for FMO2 Gene

Aliases for FMO2 Gene

  • Flavin Containing Monooxygenase 2 (Non-Functional) 2 3
  • Pulmonary Flavin-Containing Monooxygenase 2 3 4
  • Dimethylaniline Oxidase 2 3 4
  • EC 4 63
  • Dimethylaniline Monooxygenase [N-Oxide-Forming] 2 3
  • Flavin Containing Monooxygenase 2 2
  • FMO, Pulmonary 3
  • FMO 1B1 4
  • FMO1B1 3
  • FMO 2 4

External Ids for FMO2 Gene

Previous GeneCards Identifiers for FMO2 Gene

  • GC01P168718
  • GC01P166783
  • GC01P167735
  • GC01P168393
  • GC01P167886
  • GC01P169420
  • GC01P142377

Summaries for FMO2 Gene

Entrez Gene Summary for FMO2 Gene

  • This gene encodes a flavin-containing monooxygenase family member. It is an NADPH-dependent enzyme that catalyzes the N-oxidation of some primary alkylamines through an N-hydroxylamine intermediate. However, some human populations contain an allele (FMO2*2A) with a premature stop codon, resulting in a protein that is C-terminally-truncated, has no catalytic activity, and is likely degraded rapidly. This gene is found in a cluster with other related family members on chromosome 1. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2014]

GeneCards Summary for FMO2 Gene

FMO2 (Flavin Containing Monooxygenase 2 (Non-Functional)) is a Protein Coding gene. Diseases associated with FMO2 include trimethylaminuria. Among its related pathways are Metabolism and Busulfan Pathway, Pharmacodynamics. GO annotations related to this gene include flavin adenine dinucleotide binding and monooxygenase activity. An important paralog of this gene is FMO4.

UniProtKB/Swiss-Prot for FMO2 Gene

  • Catalyzes the N-oxidation of certain primary alkylamines to their oximes via an N-hydroxylamine intermediate. Inactive toward certain tertiary amines, such as imipramine or chloropromazine. Can catalyze the S-oxidation of methimazole. The truncated form is catalytically inactive.

Gene Wiki entry for FMO2 Gene

No data available for Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for FMO2 Gene

Genomics for FMO2 Gene

Genomic Location for FMO2 Gene

171,185,208 bp from pter
171,212,683 bp from pter
27,476 bases
Plus strand

Genomic View for FMO2 Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for FMO2 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for FMO2 Gene

Proteins for FMO2 Gene

  • Protein details for FMO2 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Dimethylaniline monooxygenase [N-oxide-forming] 2
    Protein Accession:
    Secondary Accessions:
    • Q5EBX4
    • Q86U73
    • Q9BRX1

    Protein attributes for FMO2 Gene

    471 amino acids
    Molecular mass:
    53644 Da
    Name=FAD; Xref=ChEBI:CHEBI:57692;
    Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
    Quaternary structure:
    No Data Available

neXtProt entry for FMO2 Gene

Proteomics data for FMO2 Gene at MOPED

Post-translational modifications for FMO2 Gene

Other Protein References for FMO2 Gene

ENSEMBL proteins:
Reactome Protein details:
REFSEQ proteins:

Antibody Products

Domains for FMO2 Gene

Suggested Antigen Peptide Sequences for FMO2 Gene

Graphical View of Domain Structure for InterPro Entry



  • Q99518
  • Belongs to the FMO family.
genes like me logo Genes that share domains with FMO2: view

No data available for Gene Families for FMO2 Gene

Function for FMO2 Gene

Molecular function for FMO2 Gene

GENATLAS Biochemistry:
flavin containing monooxygenase 2,microsomal,pulmonary,protein catalyzing the N-oxidation of primary alkylamines
UniProtKB/Swiss-Prot CatalyticActivity:
N,N-dimethylaniline + NADPH + O(2) = N,N-dimethylaniline N-oxide + NADP(+) + H(2)O
UniProtKB/Swiss-Prot Function:
Catalyzes the N-oxidation of certain primary alkylamines to their oximes via an N-hydroxylamine intermediate. Inactive toward certain tertiary amines, such as imipramine or chloropromazine. Can catalyze the S-oxidation of methimazole. The truncated form is catalytically inactive.

Enzyme Numbers (IUBMB) for FMO2 Gene

Gene Ontology (GO) - Molecular Function for FMO2 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0004497 monooxygenase activity TAS --
GO:0004499 N,N-dimethylaniline monooxygenase activity IDA 11744609
GO:0016491 oxidoreductase activity --
GO:0050660 flavin adenine dinucleotide binding IEA --
GO:0050661 NADP binding IEA --
genes like me logo Genes that share ontologies with FMO2: view

Animal Model Products

No data available for Phenotypes , Animal Models , miRNA , Transcription Factor Targeting and HOMER Transcription for FMO2 Gene

Localization for FMO2 Gene

Subcellular locations from UniProtKB/Swiss-Prot for FMO2 Gene

Microsome membrane. Endoplasmic reticulum membrane.

Subcellular locations from

Jensen Localization Image for FMO2 Gene COMPARTMENTS Subcellular localization image for FMO2 gene
Compartment Confidence
endoplasmic reticulum 5
cytosol 2
peroxisome 2
extracellular 1
golgi apparatus 1
lysosome 1

Gene Ontology (GO) - Cellular Components for FMO2 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005789 endoplasmic reticulum membrane TAS --
GO:0016020 membrane IDA 9804831
GO:0016021 integral component of membrane IEA --
genes like me logo Genes that share ontologies with FMO2: view

Pathways for FMO2 Gene

genes like me logo Genes that share pathways with FMO2: view

Pathways by source for FMO2 Gene

PCR Array Products

Interacting Proteins for FMO2 Gene

Gene Ontology (GO) - Biological Process for FMO2 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0006082 organic acid metabolic process IDA 11744609
GO:0006739 NADP metabolic process IDA 11744609
GO:0006805 xenobiotic metabolic process TAS --
GO:0009404 toxin metabolic process IDA 11744609
GO:0017144 drug metabolic process IDA 11744609
genes like me logo Genes that share ontologies with FMO2: view

Compounds for FMO2 Gene

(9) HMDB Compounds for FMO2 Gene

Compound Synonyms Cas Number PubMed IDs
  • Dimethylaniline N-oxide
  • 1H-Purin-6-amine flavin dinucleotide
  • Antideprin
  • Magnesium
  • Dimethylaminobenzene

(2) Novoseek inferred chemical compound relationships for FMO2 Gene

Compound -log(P) Hits PubMed IDs
methimazole 78.5 1
thimet 77.6 1
genes like me logo Genes that share compounds with FMO2: view

Transcripts for FMO2 Gene

Unigene Clusters for FMO2 Gene

Flavin containing monooxygenase 2 (non-functional):
Representative Sequences:

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for FMO2

Primer Products

Flow Cytometry Products

Alternative Splicing Database (ASD) splice patterns (SP) for FMO2 Gene

ExUns: 1a · 1b ^ 2a · 2b · 2c ^ 3 ^ 4a · 4b · 4c ^ 5 ^ 6 ^ 7 ^ 8 ^ 9
SP1: - -
SP2: - -
SP3: - - - - - -
SP4: -
SP5: -

Relevant External Links for FMO2 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for FMO2 Gene

mRNA expression in normal human tissues for FMO2 Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

mRNA differential expression in normal tissues according to GTEx for FMO2 Gene

This gene is overexpressed in Artery - Aorta (7.1) and Lung (5.5).

SOURCE GeneReport for Unigene cluster for FMO2 Gene Hs.144912

mRNA Expression by UniProt/SwissProt for FMO2 Gene

Tissue specificity: Expressed in lung (at protein level). Expressed predominantly in lung, and at a much lesser extent in kidney. Also expressed in fetal lung, but not in liver, kidney and brain.
genes like me logo Genes that share expressions with FMO2: view

In Situ Assay Products

No data available for Protein differential expression in normal tissues , Protein expression and Expression partners for FMO2 Gene

Orthologs for FMO2 Gene

This gene was present in the common ancestor of animals and fungi.

Orthologs for FMO2 Gene

Organism Taxonomy Gene Similarity Type Details
(Bos Taurus)
Mammalia FMO2 35
  • 87.02 (n)
  • 85.32 (a)
FMO2 36
  • 75 (a)
(Canis familiaris)
Mammalia FMO2 35
  • 88.61 (n)
  • 87.69 (a)
FMO2 36
  • 73 (a)
(Mus musculus)
Mammalia Fmo2 35
  • 82.94 (n)
  • 86.2 (a)
Fmo2 16
Fmo2 36
  • 76 (a)
(Pan troglodytes)
Mammalia FMO2 35
  • 99.36 (n)
  • 99.58 (a)
FMO2 36
  • 88 (a)
(Rattus norvegicus)
Mammalia Fmo2 35
  • 82.52 (n)
  • 86.2 (a)
(Monodelphis domestica)
Mammalia FMO2 36
  • 68 (a)
(Ornithorhynchus anatinus)
Mammalia FMO2 36
  • 65 (a)
(Anolis carolinensis)
Reptilia FMO2 36
  • 56 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia MGC89174 35
  • 63.88 (n)
  • 59.01 (a)
(Danio rerio)
Actinopterygii fmo5 36
  • 46 (a)
si:dkey-239i20.2 36
  • 44 (a)
si:dkey-239i20.4 36
  • 42 (a)
fruit fly
(Drosophila melanogaster)
Insecta Fmo-1 36
  • 29 (a)
(Caenorhabditis elegans)
Secernentea C01H6.4 37
  • 33 (a)
fmo-11 37
  • 42 (a)
fmo-12 37
  • 40 (a)
fmo-13 37
  • 42 (a)
fmo-14 37
  • 36 (a)
fmo-15 37
  • 42 (a)
fmo-1 36
  • 36 (a)
fmo-2 36
  • 36 (a)
fmo-3 36
  • 39 (a)
fmo-4 36
  • 31 (a)
fmo-5 36
  • 39 (a)
baker's yeast
(Saccharomyces cerevisiae)
Saccharomycetes FMO1 36
  • 26 (a)
sea squirt
(Ciona savignyi)
Ascidiacea -- 36
  • 38 (a)
-- 36
  • 42 (a)
-- 36
  • 38 (a)
Species with no ortholog for FMO2:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • chicken (Gallus gallus)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rainbow trout (Oncorhynchus mykiss)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)

Evolution for FMO2 Gene

Gene Tree for FMO2 (if available)
Gene Tree for FMO2 (if available)

Paralogs for FMO2 Gene

Paralogs for FMO2 Gene

Selected SIMAP similar genes for FMO2 Gene using alignment to 1 proteins:

genes like me logo Genes that share paralogs with FMO2: view

Variants for FMO2 Gene

Polymorphic Variants from UniProtKB/Swiss-Prot for FMO2 Gene

The sequence shown is that of the allele FMO2*2A. There are two alleles; one major, FMO2*2A (truncated form) and one minor, FMO2*1 (full-length form similar to the protein found in other mammals). A nonsense mutation transforms the Gln-472 of FMO2*1 in a premature stop codon. FMO2*2A occurs in essentially 100% of Caucasians and Asians. FMO2*1 is present at a frequency of approximately 4% to 13% in the sample of population of African descent. FMO2*2A is catalytically inactive

Sequence variations from dbSNP and Humsavar for FMO2 Gene

SNP ID Clin Chr 01 pos Sequence Context AA Info Type MAF
rs1057367 -- 171,212,313(+) GGGTG(A/G)ACACA utr-variant-3-prime, nc-transcript-variant
rs1883166 -- 171,199,936(+) AGTCT(A/C)AAACT intron-variant
rs2020860 - 171,193,444(+) AAACT(C/T)CCTGC utr-variant-5-prime, missense, reference, nc-transcript-variant
rs2020861 -- 171,199,446(+) AACTC(A/G)GGCTC intron-variant, reference, synonymous-codon, nc-transcript-variant
rs2020862 - 171,199,445(+) AAACT(C/T)AGGCT intron-variant, reference, missense, nc-transcript-variant

Structural Variations from Database of Genomic Variants (DGV) for FMO2 Gene

Variant ID Type Subtype PubMed ID
esv28731 CNV Gain+Loss 19812545
nsv831882 CNV Loss 17160897
esv2719450 CNV Deletion 23290073
esv2090208 CNV Deletion 18987734
esv1702263 CNV Deletion 17803354
esv2719461 CNV Deletion 23290073
esv259635 OTHER Complex 20981092

Relevant External Links for FMO2 Gene

HapMap Linkage Disequilibrium report
Human Gene Mutation Database (HGMD)

Disorders for FMO2 Gene

MalaCards: The human disease database

MalaCards: The human disease database.

Search for FMO2 Gene in MalaCards »

(1) Diseases for FMO2 Gene including...

Relevant External Links for FMO2

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
genes like me logo Genes that share disorders with FMO2: view

No data available for OMIM , UniProtKB/Swiss-Prot , University of Copenhagen DISEASES , Novoseek inferred disease relationships and Genatlas for FMO2 Gene

Publications for FMO2 Gene

  1. The flavin-containing monooxygenase 2 gene (FMO2) of humans, but not of other primates, encodes a truncated, nonfunctional protein. (PMID: 9804831) Dolphin C.T. … Phillips I.R. (J. Biol. Chem. 1998) 2 3 4 23
  2. Ethnic differences in human flavin-containing monooxygenase 2 (FMO2) polymorphisms: detection of expressed protein in African-Americans. (PMID: 11042094) Whetstine J.R. … Hines R.N. (Toxicol. Appl. Pharmacol. 2000) 3 4 23 48
  3. The potentially deleterious functional variant flavin-containing monooxygenase 2*1 is at high frequency throughout sub-Saharan Africa. (PMID: 18794725) Veeramah K.R. … Phillips I.R. (Pharmacogenet. Genomics 2008) 3 4 23 48
  4. Differences in FMO2*1 allelic frequency between Hispanics of Puerto Rican and Mexican descent. (PMID: 15355885) Krueger S.K. … Williams D.E. (Drug Metab. Dispos. 2004) 3 23 48
  5. Haplotype and functional analysis of four flavin-containing monooxygenase isoform 2 (FMO2) polymorphisms in Hispanics. (PMID: 15864117) Krueger S.K. … Williams D.E. (Pharmacogenet. Genomics 2005) 3 23 48

Products for FMO2 Gene

Sources for FMO2 Gene

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