ZDHHC3

Chr 3

zDHHC palmitoyltransferase 3

Also known as: DHHC-3, DHHC3, GODZ, ZNF373

This Golgi-localized palmitoyltransferase catalyzes the addition of palmitate to various protein substrates, including GABA receptor subunits, neuronal adhesion molecules, and G protein-coupled receptors, thereby regulating their membrane localization and function in synaptic signaling and neurotransmission. The gene shows moderate constraint against loss-of-function variants (LOEUF 0.64), but associated diseases and inheritance patterns have not been established in the provided data. Its role in palmitoylating key synaptic proteins like GABRG2 and GAP43 suggests potential involvement in GABAergic neurotransmission and synaptic development.

OMIMResearchSummary from RefSeq, UniProt
MultiplemechanismLOEUF 0.64
Clinical SummaryZDHHC3
Population Constraint (gnomAD)
Constrained for loss-of-function variants (OE-LoF 0.32) despite low pLI — interpret in context.
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ClinVar Variants
7 unique Pathogenic / Likely Pathogenic· 30 VUS of 58 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
0.64LOEUF
pLI 0.028
Z-score 2.69
OE 0.32 (0.180.64)
Tolerant

Typical tolerance to LoF variation

Missense Constraint
2.08Z-score
OE missense 0.58 (0.500.68)
112 obs / 193.2 exp
Mild constraint

Moderately missense-constrained (top ~2.5%)

Observed / Expected Ratios
LoF OE0.32 (0.180.64)
00.351.4
Missense OE0.58 (0.500.68)
00.61.4
Synonymous OE0.93
01.21.6
LoF obs/exp: 6 / 18.5Missense obs/exp: 112 / 193.2Syn Z: 0.49
DN
0.76top 25%
GOF
0.76top 25%
LOF
0.2679th %ile

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
DNprediction above median

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.

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

ClinVar Variant Classifications

58 submitted variants in ClinVar

Classification Summary

Pathogenic6
Likely Pathogenic1
VUS30
Likely Benign2
6
Pathogenic
1
Likely Pathogenic
30
VUS
2
Likely Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
6
0
6
Likely Pathogenic
0
0
1
0
1
VUS
0
27
3
0
30
Likely Benign
0
1
0
1
2
Benign
0
0
0
0
0
Total02810139

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

View in ClinVar →

Protein Context — Lollipop Plot

ZDHHC3 · 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.

Search ClinicalTrials.gov →
Clinical Literature
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