ATP8A2 p.Val645=
c.1935C>G · rs146279041 · VCV1642274
Benign
Single submitter
Classification
Benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
rare (popmax 0.658%, eas)
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 1.4 | GERP -2, phastCons 1 |
| Overall | ||
| CADD | 8.784 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.658%
East Asian · 295/44,854 alleles
Filtering AF
0.596%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.572%
Overall
0.0204%
330/1,614,028 alleles · rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| East Asiangrpmax | 0.658% | 152 |
| Remaining individualsnot grpmax-eligible | 0.0256% | 3,906 |
| Middle Eastern | 0.0165% | 6,062 |
| South Asian | 0.0121% | 8,280 |
| Ashkenazi Jewishnot grpmax-eligible | 0.00676% | 14,803 |
| Admixed American | 0.00333% | 30,005 |
| European (non-Finnish) | 0.000254% | 393,332 |
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
- ATP8A2
- Protein
- p.Val645=
- Coding
- c.1935C>G
- MANE Select
- NM_016529
- dbSNP
- rs146279041
- Type
- single nucleotide variant
- Location
- chr13:25579875 (GRCh38)
- Gene constraint
- LOEUF 0.728 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
- Structure
- AlphaFold pLDDT 81.12
- Residue 645
- a UniProt-annotated variant site (in camrq4; uncertain significance)
Similar variants
- ATP8A2 c.1782+2T>C Pathogenic ★★ same type
- ATP8A2 c.2212-1G>C Pathogenic ★★ same type
- ATP8A2 c.3272+1G>A Pathogenic/Likely pathogenic ★★ same type
- ATP8A2 c.77-2A>G Pathogenic/Likely pathogenic ★★ same type
- ATP8A2 p.Arg586Ter Pathogenic/Likely pathogenic ★★ same type
- ATP8A2 p.Asp765Tyr Likely pathogenic ★★ same type
- ATP8A2 p.Ala1091Val Uncertain significance ★★ ⚠ same type
- ATP8A2 p.Ala335Thr 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/atp8a2-p-val645 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown