CYP19A1

Chr 15

cytochrome P450 family 19 subfamily A member 1

Also known as: ARO, ARO1, CPV1, CYAR, CYP19, CYPXIX, P-450AROM

This gene encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. This protein localizes to the endoplasmic reticulum and catalyzes the last steps of estrogen biosynthesis. Mutations in this gene can result in either increased or decreased aromatase activity; the associated phenotypes suggest that estrogen functions both as a sex steroid hormone and in growth or differentiation. Alternative promoter use and alternative splicing results in multiple transcript variants that have different tissue specificities. [provided by RefSeq, Dec 2016]

GeneReviewsResearchGenerating clinical summary…

Primary Disease Associations & Inheritance

UniProtAromatase excess syndrome
UniProtAromatase deficiency
0
Active trials
436
Pubs (1 yr)
—
P/LP submissions
—
P/LP missense
0.88
LOEUF
Multiple*
Mechanism· predicted
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GeneReview available — CYP19A1
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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?
0.88LOEUF
pLI 0.000
Z-score 1.99
OE 0.53 (0.33–0.88)
Tolerant

Typical tolerance to LoF variation

Missense Constraint?
0.54Z-score
OE missense 0.91 (0.82–1.01)
263 obs / 288.6 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios?
LoF OE?0.53 (0.33–0.88)
0≤0.351.4
Missense OE?0.91 (0.82–1.01)
0≤0.61.4
Synonymous OE?1.08
0≤1.21.6
LoF obs/exp: 11 / 20.8Missense obs/exp: 263 / 288.6Syn Z: -0.65

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

CYP19A1 · 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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