HECTD3

Chr 1

HECT domain E3 ubiquitin protein ligase 3

NCBI Gene: 79654ENSG00000126107UniProt: Q5T447

The protein encoded by this gene transfers ubiquitin from an E2 ubiquitin-conjugating enzyme to targeted substrates, leading to the degradation of those substrates. The encoded protein has been shown to transfer ubiquitin to TRIOBP to facilitate cell cycle progression, and to STX8. [provided by RefSeq, Dec 2012]

128
ClinVar variants
6
Pathogenic / LP
0.09
pLI score
0
Active trials
Clinical Summary— HECTD3
⚡
Population Constraint (gnomAD)
Constrained for loss-of-function variants (OE-LoF 0.25) despite low pLI — interpret in context.
📋
ClinVar Variants
6 Pathogenic / Likely Pathogenic· 114 VUS of 128 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

gnomAD
Moderate LoF intolerance
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.
0.40LOEUF
pLI 0.089
Z-score 4.83
OE 0.25 (0.16–0.40)
Moderately constrained

More LoF-intolerant than ~75% 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.
2.15Z-score
OE missense 0.73 (0.67–0.80)
367 obs / 502.6 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.0.25 (0.16–0.40)
0≤0.351.4
Missense OE?Ratio of observed to expected missense variants. OE ≤ 0.6 = fewer missense variants than expected by chance.0.73 (0.67–0.80)
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.0.95
0≤1.21.6
LoF obs/exp: 12 / 48.2Missense obs/exp: 367 / 502.6Syn Z: 0.59

ClinVar Variant Classifications

128 submitted variants in ClinVar

ClinVar

Classification Summary

Pathogenic4
Likely Pathogenic2
VUS114
Likely Benign5
Benign3
4
Pathogenic
2
Likely Pathogenic
114
VUS
5
Likely Benign
3
Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
4
0
4
Likely Pathogenic
0
0
2
0
2
VUS
1
103
10
0
114
Likely Benign
0
3
0
2
5
Benign
0
1
0
2
3
Total1107164128

LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly

View in ClinVar →

Protein Context — Lollipop Plot

HECTD3 · protein map & ClinVar variants

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

OMIM — Genotype-Phenotype Relationships

1 OMIM entry

OMIM
Clinical Literature
Landmark / reviewRecent case evidence
Key Publications
Landmark & review papers · by relevance
PubMed
Top 10 resultsSearch PubMed ↗
Recent Gene-Specific Literature
Gene in title · MEDLINE · newest first
Europe PMC
Top 5 resultsSearch Europe PMC ↗

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →

External Resources

Links to major genomics databases and tools