FOXE3

Chr 1ADAR

forkhead box E3

Also known as: AAT11, ASGD2, CATC3, CTRCT34, FKHL12, FREAC8

FOXE3 encodes a lens-specific transcription factor that controls lens epithelial cell growth, proliferation, and differentiation during eye development. Mutations cause anterior segment dysgenesis, congenital cataracts, and congenital primary aphakia, with both autosomal dominant and autosomal recessive inheritance patterns reported. The gene primarily affects ocular development, though some mutations are also associated with familial thoracic aortic aneurysm susceptibility.

OMIMResearchSummary from RefSeq, OMIM, UniProt
LOFmechanismAD/ARLOEUF 1.613 OMIM phenotypes
Clinical SummaryFOXE3
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Gene-Disease Validity (ClinGen)
familial thoracic aortic aneurysm and aortic dissection · ADModerate

Moderate evidence — consider for supplementary testing

2 total gene-disease associations curated

Population Constraint (gnomAD)
Low constraint (pLI 0.18) — loss-of-function variants are relatively tolerated in the population.

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
1.61LOEUF
pLI 0.181
Z-score 0.89
OE 0.40 (0.141.61)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint
0.57Z-score
OE missense 0.83 (0.691.01)
76 obs / 91.3 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.40 (0.141.61)
00.351.4
Missense OE0.83 (0.691.01)
00.61.4
Synonymous OE1.18
01.21.6
LoF obs/exp: 1 / 2.5Missense obs/exp: 76 / 91.3Syn Z: -0.95
Curated Mechanism (G2P)Gene2Phenotype (DDG2P) ↗
definitiveFOXE3-related congenital cataractOTHERAD
definitiveFOXE3-related congenital cataractOTHERAR
definitiveFOXE3-related anterior segment mesenchymal dysgenesisLOFAD
definitiveFOXE3-related congenital primary aphakiaLOFAR
DN
0.6065th %ile
GOF
0.6540th %ile
LOF
0.52top 25%

This gene has evidence for multiple mechanisms of pathogenicity (gain-of-function and dominant-negative). Both the Badonyi & Marsh prediction and the broader genomic evidence point to gain-of-function as the predominant mechanism. Different variants in this gene may act through different mechanisms — interpret in context of the specific variant.

GOFprediction above median
DN1 literature citation

Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.

Literature Evidence

DNFunctional studies identified variable effects on the protein stability, DNA binding, nuclear localization and transcriptional activity for recessive FOXE3 variants, whereas dominant alleles showed severe impairment in all areas and dominant-negative characteristics.PMID:34046667

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

FOXE3 · protein map & ClinVar variants

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

3D Protein StructureAlphaFold

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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Clinical Literature
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