ANK1 p.Ala428=
c.1284G>A · VCV4753572
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0137%, 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 -20 | GERP -4 |
| Overall | ||
| CADD | 0.014 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0137%
African / African-American · 10/73,050 alleles
Filtering AF
0.0074%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00562%
Overall
0.00187%
29/1,551,440 alleles · ultra-rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 0.0137% | 7,305 |
| Admixed American | 0.00588% | 16,997 |
| Remaining individualsnot grpmax-eligible | 0.00499% | 20,027 |
| East Asian | 0.00244% | 40,922 |
| South Asian | 0.00119% | 84,064 |
| European (non-Finnish) | 0.000959% | 104,273 |
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
- ANK1
- Protein
- p.Ala428=
- Coding
- c.1284G>A
- MANE Select
- NM_000037
- Type
- single nucleotide variant
- Location
- chr8:41717625 (GRCh38)
- Gene constraint
- LOEUF 0.299 · pLI 1.00 (gnomAD)
- Structure
- AlphaFold pLDDT 69.64 · 21 PDB
- Residue 428
- the '89 kda domain' region
Similar variants
- ANK1 p.Ala428Thr Uncertain significance ★ same residue
- ANK1 p.Ala428fs Likely pathogenic ★★ same residue
- ANK1 c.1305+1G>A Pathogenic ★★ same type
- ANK1 c.1405-9G>A Pathogenic/Likely pathogenic ★★ same type
- ANK1 c.1702-2A>G Pathogenic/Likely pathogenic ★★ same type
- ANK1 c.1801-17G>A Pathogenic/Likely pathogenic ★★ same type
- ANK1 c.1801-2A>T Likely pathogenic ★★ same type
- ANK1 c.1998+1G>T 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/ank1-p-ala428 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown