SAP30
Chr 4Sin3A associated protein 30
The protein is a component of the Sin3-histone deacetylase complex that deacetylates core histone octamers and recruits this complex to specific corepressor complexes for transcriptional repression. Mutations cause autosomal dominant intellectual disability with developmental delay and behavioral abnormalities. The gene shows moderate constraint against loss-of-function variants, suggesting some intolerance to complete protein loss.
Population Genetics & Constraint
gnomAD v4 — loss-of-function & missense intolerance
Typical tolerance to LoF variation
Mild missense constraint
The highest-scoring mechanism for this gene is loss-of-function (haploinsufficiency).
Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.
ClinVar Variant Classifications
96 submitted variants in ClinVar
Classification Summary
Curated Variants Distribution
Classified variants from ClinVar · 5 ACMG categories
| Classification | LoF | Missense + Inframe | Non-coding | Synonymous | Total |
|---|---|---|---|---|---|
Pathogenic | 0 | 0 | 59 | 0 | 59 |
Likely Pathogenic | 0 | 0 | 3 | 0 | 3 |
VUS | 0 | 24 | 6 | 0 | 30 |
Likely Benign | 0 | 0 | 0 | 0 | 0 |
Benign | 0 | 0 | 0 | 0 | 0 |
| Total | 0 | 24 | 68 | 0 | 92 |
LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly
View in ClinVar →Protein Context — Lollipop Plot
SAP30 · protein map & ClinVar variants
Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.
3D Protein StructureAlphaFold
External Resources
Links to major genomics databases and tools
Clinical Trials
Active and recruiting trials from ClinicalTrials.gov
No active trials found for this gene.
Search ClinicalTrials.gov →External Resources
Links to major genomics databases and tools