DLGAP3

Chr 1

DLG associated protein 3

Also known as: DAP3, SAPAP3, SPAPA3

NCBI Gene: 58512ENSG00000116544UniProt: O95886

Predicted to enable PDZ domain binding activity; molecular adaptor activity; and scaffold protein binding activity. Predicted to be involved in modulation of chemical synaptic transmission and protein-containing complex assembly. Predicted to be located in plasma membrane. Predicted to be active in several cellular components, including cholinergic synapse; glutamatergic synapse; and neuromuscular junction. [provided by Alliance of Genome Resources, Apr 2025]

39
ClinVar variants
9
Pathogenic / LP
1.00
pLI score· haploinsufficient
0
Active trials
Clinical Summary— DLGAP3
⚡
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.
📋
ClinVar Variants
9 Pathogenic / Likely Pathogenic· 6 VUS of 39 total submissions

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.
0.14LOEUF
pLI 1.000
Z-score 5.32
OE 0.03 (0.01–0.14)
Highly constrained

Among the most LoF-intolerant genes (~top 3%)

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.
2.63Z-score
OE missense 0.70 (0.64–0.76)
415 obs / 595.4 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.0.03 (0.01–0.14)
0≤0.351.4
Missense OE?Ratio of observed to expected missense variants. OE ≤ 0.6 = fewer missense variants than expected by chance.0.70 (0.64–0.76)
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.1.00
0≤1.21.6
LoF obs/exp: 1 / 35.0Missense obs/exp: 415 / 595.4Syn Z: 0.03

ClinVar Variant Classifications

39 submitted variants in ClinVar

ClinVar

Classification Summary

Pathogenic7
Likely Pathogenic2
VUS6
Likely Benign6
Benign5
7
Pathogenic
2
Likely Pathogenic
6
VUS
6
Likely Benign
5
Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
7
0
7
Likely Pathogenic
0
0
2
0
2
VUS
0
1
5
0
6
Likely Benign
1
2
0
3
6
Benign
0
0
0
5
5
Total1314826

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

View in ClinVar →

Protein Context — Lollipop Plot

DLGAP3 · 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