BACH2 p.Ala659=
c.1977G>A · rs777547219 · VCV1621361
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0593%, sas)
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 -20 | GERP -3.7 |
| Overall | ||
| CADD | 0.017 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0593%
South Asian · 54/91,088 alleles
Filtering AF
0.0466%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0421%
Overall
0.00564%
91/1,614,226 alleles · ultra-rare
exomes 89/1,461,868 · genomes 2/152,358 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| South Asiangrpmax | 0.0593% | 1,687 |
| Middle Eastern | 0.033% | 3,031 |
| East Asian | 0.00668% | 14,959 |
| European (non-Finnish) | 0.00263% | 38,065 |
| Remaining individualsnot grpmax-eligible | 0.0016% | 62,510 |
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
- BACH2
- Protein
- p.Ala659=
- Coding
- c.1977G>A
- MANE Select
- NM_021813
- dbSNP
- rs777547219
- Type
- single nucleotide variant
- Location
- chr6:89938210 (GRCh38)
- Gene constraint
- LOEUF 0.164 · pLI 1.00 (gnomAD)
- Structure
- AlphaFold pLDDT 54.66 · 2 PDB
- Residue 659
- the bzip domain; the 'basic motif' region
Similar variants
- BACH2 p.Ala148Val Uncertain significance ★★ ⚠ same type
- BACH2 p.Ala205Thr Uncertain significance ★★ ⚠ same type
- BACH2 p.Ala304Glu Uncertain significance ★★ ⚠ same type
- BACH2 p.Ala479Val Uncertain significance ★★ ⚠ same type
- BACH2 p.Ala529Val Uncertain significance ★★ same type
- BACH2 p.Ala747Val Uncertain significance ★★ ⚠ same type
- BACH2 p.Ala756Val Uncertain significance ★★ ⚠ same type
- BACH2 p.Ala761Ser Uncertain significance ★★ ⚠ 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/bach2-p-ala659 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown