FMO1

Chr 1

flavin containing dimethylaniline monoxygenase 1

Metabolic N-oxidation of the diet-derived amino-trimethylamine (TMA) is mediated by flavin-containing monooxygenase and is subject to an inherited FMO3 polymorphism in man resulting in a small subpopulation with reduced TMA N-oxidation capacity resulting in fish odor syndrome Trimethylaminuria. Three forms of the enzyme, FMO1 found in fetal liver, FMO2 found in adult liver, and FMO3 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. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2013]

ResearchGenerating clinical summary…
0
Active trials
21
Pubs (1 yr)
P/LP submissions
P/LP missense
1.09
LOEUF
Multiple*
Mechanism· predicted
Some data sources returned errors (1)

omim: Error: OMIM fetch failed: 429

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint?
1.09LOEUF
pLI 0.000
Z-score 1.20
OE 0.74 (0.521.09)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint?
1.05Z-score
OE missense 0.82 (0.740.92)
235 obs / 285.0 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios?
LoF OE?0.74 (0.521.09)
00.351.4
Missense OE?0.82 (0.740.92)
00.61.4
Synonymous OE?1.09
01.21.6
LoF obs/exp: 19 / 25.5Missense obs/exp: 235 / 285.0Syn Z: -0.75

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

FMO1 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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