ATP2B4 p.Arg751Trp
c.2251C>T · VCV4644264
Uncertain significance
Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0329%, mid)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| REVEL | 0.901 | moderately pathogenic-leaning |
|---|---|---|
| Splicing | ||
| SpliceAI | <0.2 | all four deltas below 0.2 · C>A here scores Δ0.36 · evaluated, not missing |
| Constraint at this position | ||
| Conservation | phyloP 2.7 | GERP -2.5, phastCons 0.99 |
| Regional constraint | o/e 0.81 | unconstrained · MANE · 6,338 bp · p 3.8e-05 · regional, not allelic |
| Overall | ||
| CADD | 33.0 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0329%
Middle Eastern · 2/6,084 alleles
Filtering AF
0.0188%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0157%
Overall
0.00235%
38/1,614,052 alleles · ultra-rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Middle Easterngrpmax | 0.0329% | 3,042 |
| African / African-American | 0.028% | 3,568 |
| South Asian | 0.00659% | 15,182 |
| Remaining individualsnot grpmax-eligible | 0.0064% | 15,622 |
| Admixed American | 0.005% | 20,001 |
| European (non-Finnish) | 0.000169% | 590,012 |
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
- ATP2B4
- Protein
- p.Arg751Trp
- Coding
- c.2251C>T
- MANE Select
- NM_001684
- Type
- single nucleotide variant
- Location
- chr1:203713204 (GRCh38)
- Gene constraint
- LOEUF 0.44 · pLI 1.00 (gnomAD)
- Structure
- AlphaFold pLDDT 72.71 · 2 PDB
Similar variants
- ATP2B4 p.Arg554Cys Uncertain significance ★★ same type
- ATP2B4 p.Arg624Cys Uncertain significance ★★ same type
- ATP2B4 p.Arg732Cys Uncertain significance ★★ same type
- ATP2B4 p.Arg993Gly Uncertain significance ★★ same type
- ATP2B4 p.Asn851Ser Uncertain significance ★★ same type
- ATP2B4 p.Asp333Gly Uncertain significance ★★ same type
- ATP2B4 p.Asp502Asn Uncertain significance ★★ same type
- ATP2B4 p.Gly634Arg 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/atp2b4-p-arg751trp (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown