SIN3A p.Pro279=
c.837G>A · rs535260527 · VCV1445870
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 3 submitters
gnomAD v4.1
Rare
ultra-rare (popmax 0.0117%, amr)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP -2 | GERP -3.8 |
| Overall | ||
| CADD | 7.776 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0117%
Admixed American · 7/60,002 alleles
Filtering AF
0.00543%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0038%
Overall
0.0026%
42/1,613,974 alleles · ultra-rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Admixed Americangrpmax | 0.0117% | 8,572 |
| East Asian | 0.00668% | 14,960 |
| African / African-American | 0.004% | 25,000 |
| Remaining individualsnot grpmax-eligible | 0.0032% | 31,251 |
| European (non-Finnish) | 0.00229% | 43,702 |
Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.
Variant & gene context
- Gene
- SIN3A
- Protein
- p.Pro279=
- Coding
- c.837G>A
- MANE Select
- NM_001145358
- dbSNP
- rs535260527
- Type
- single nucleotide variant
- Location
- chr15:75411663 (GRCh38)
- Gene constraint
- LOEUF 0.14 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
- Structure
- AlphaFold pLDDT 69.67
- Residue 279
- the 'interaction with rest' region; the 'disordered' region
Similar variants
- SIN3A p.Pro279Leu Benign ★★ same residue
- SIN3A p.Pro279Ser Conflicting classifications of pathogenicity ★ ⚠ same residue
- SIN3A p.Arg1140Ter Pathogenic ★★ same type
- SIN3A p.Arg471Ter Pathogenic ★★ same type
- SIN3A p.Arg537Ter Pathogenic ★★ same type
- SIN3A p.Arg553Ter Pathogenic/Likely pathogenic ★★ same type
- SIN3A p.Arg559Ter Pathogenic/Likely pathogenic ★★ same type
- SIN3A p.Arg718Ter Pathogenic/Likely pathogenic ★★ same type
Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →
Cite Sugi Variant
Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/sin3a-p-pro279 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown