SMARCA2 p.Ala294=
c.882C>G · VCV3605356
Benign
Single submitter
Classification
Benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.04%, afr)
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 -8 | GERP -3.7 |
| Overall | ||
| CADD | 5.425 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.04%
African / African-American · 23/57,522 alleles
Filtering AF
0.0273%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0231%
Overall
0.00228%
24/1,051,866 alleles · ultra-rare
exomes 6/905,566 · genomes 18/146,300 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 0.04% | 2,501 |
| Remaining individualsnot grpmax-eligible | 0.00309% | 32,376 |
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
- SMARCA2
- Protein
- p.Ala294=
- Coding
- c.882C>G
- MANE Select
- NM_003070
- Type
- single nucleotide variant
- Location
- chr9:2047320 (GRCh38)
- Gene constraint
- LOEUF 0.317 · pLI 1.00 · ClinGen HI 0/3 (gnomAD)
- Structure
- AlphaFold pLDDT 66.06 · 32 PDB
- Residue 294
- the 'disordered' region
Similar variants
- SMARCA2 p.Ala294Thr Conflicting classifications of pathogenicity ★ ⚠ same residue
- SMARCA2 p.Ala1138Pro Pathogenic/Likely pathogenic ★★ same type
- SMARCA2 p.Ala1160Gly Pathogenic ★★ same type
- SMARCA2 p.Ala1201Glu Pathogenic/Likely pathogenic ★★ same type
- SMARCA2 p.Ala1201Val Pathogenic/Likely pathogenic ★★ same type
- SMARCA2 p.Arg1105Cys Pathogenic ★★ same type
- SMARCA2 p.Arg1105His Pathogenic ★★ same type
- SMARCA2 p.Arg1105Pro 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/smarca2-p-ala294 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown