ATXN7L3

Chr 17AD

ataxin 7 like 3

Also known as: HATONS, SGF11

NCBI Gene: 56970ENSG00000087152UniProt: Q14CW9

Enables transcription coactivator activity. Involved in positive regulation of DNA-templated transcription and regulation of transcription by RNA polymerase II. Located in nucleus. Part of DUBm complex and SAGA complex. [provided by Alliance of Genome Resources, Jul 2025]

Primary Disease Associations & Inheritance

Harel-Tora neurodevelopmental syndromeMIM #621377
AD
0
Active trials
0
Pathogenic / LP
0
ClinVar variants
2
Pubs (1 yr)
2.1
Missense Z
0.20
LOEUF· LoF intolerant
Clinical Summary— ATXN7L3
⚡
Population Constraint (gnomAD)
Highly constrained gene — heterozygous loss-of-function variants are very rare in the population (pLI 1.00). One damaged copy is likely sufficient to cause disease.

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

gnomAD
LoF intolerant — likely haploinsufficient
LoF Constraint?LOEUF (Loss-of-function Observed/Expected Upper bound Fraction) is the upper bound of the 90% CI for LoF OE — the preferred gnomAD v4 metric. Lower = more intolerant to LoF. LOEUF < 0.35 = highly constrained.
0.20LOEUF
pLI 0.999
Z-score 4.37
OE 0.04 (0.01–0.20)
Highly constrained

Highly LoF-intolerant (top ~10% of genes)

Missense Constraint?Missense Z-score: standard deviations fewer missense variants observed vs. expected. Z > 3.09 (p < 0.001) = gene does not tolerate missense variation. OE missense < 0.6 is also considered constrained.
2.05Z-score
OE missense 0.61 (0.53–0.70)
134 obs / 219.5 exp
Mild constraint

Moderately missense-constrained (top ~2.5%)

Observed / Expected Ratios?Shaded band = 90% confidence interval. Vertical tick = point estimate. Grey threshold line = gnomAD constraint cutoff for that variant class.
LoF OE?Ratio of observed to expected LoF variants. Upper CI bound (LOEUF) ≤ 0.35 = strong LoF constraint signal.0.04 (0.01–0.20)
0≤0.351.4
Missense OE?Ratio of observed to expected missense variants. OE ≤ 0.6 = fewer missense variants than expected by chance.0.61 (0.53–0.70)
0≤0.61.4
Synonymous OE?Control metric — synonymous variants are largely neutral and expected near OE = 1.0. Significant deviation may indicate annotation issues.1.09
0≤1.21.6
LoF obs/exp: 1 / 24.2Missense obs/exp: 134 / 219.5Syn Z: -0.67
DN
0.2898th %ile
GOF
0.1799th %ile
LOF
0.85top 5%

The highest-scoring mechanism for this gene is loss-of-function (haploinsufficiency).

LOFprediction above median · LOEUF 0.20

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312. Mechanism ranking also informed by gnomAD constraint, ClinVar, and ClinGen data.

ClinVar Variant Classifications

0 submitted variants in ClinVar

ClinVar

Protein Context — Lollipop Plot

ATXN7L3 · protein map & ClinVar variants

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

Gene2Phenotype Curations

ATXN7L3-related developmental delay, hypotonia and facial dysmorphism

moderate
ADLoss Of FunctionAltered Gene Product Structure, Decreased Gene Product Level, Altered Gene Product Level
Dev. Disorders
G2P ↗
frameshift variantstop gainedmissense variant

Gene2Phenotype curations · DECIPHER consortium patient cohort (public variants) · deciphergenomics.org

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →
Clinical Literature
Landmark / reviewRecent case evidence
Full-Text Mentions
NLP-detected gene mentions in article bodies · via PubTator3
PubTator3
Top 5 full-text resultsSearch PubTator3 ↗
Key Publications
Landmark & review papers · by relevance
PubMed
Top 5 results · since 2015Search PubMed ↗
Recent Gene-Specific Literature
Gene in title · MEDLINE · newest first
Europe PMC
Top 5 resultsSearch Europe PMC ↗

External Resources

Links to major genomics databases and tools

Franklin by Genoox
AI-powered variant curation and clinical analysis
DECIPHER
Genomic variants and phenotypes in rare disease patients