JPH3 p.Ala409=
c.1227G>A · VCV4931703
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00659%, sas)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | <0.2 | no splice effect predicted · four deltas, not one · how we know |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP -13 | GERP -4.8 |
| Overall | ||
| CADD | 0.387 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00659%
South Asian · 6/91,076 alleles
Filtering AF
0.00286%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00195%
Overall
0.000682%
11/1,613,866 alleles · very rare
exomes 10/1,461,660 · genomes 1/152,206 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| South Asiangrpmax | 0.00659% | 15,179 |
| Ashkenazi Jewishnot grpmax-eligible | 0.00338% | 29,608 |
| Finnishnot grpmax-eligible | 0.00157% | 63,840 |
| European (non-Finnish) | 0.000254% | 393,345 |
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
- JPH3
- Protein
- p.Ala409=
- Coding
- c.1227G>A
- MANE Select
- NM_020655
- Type
- single nucleotide variant
- Location
- chr16:87684208 (GRCh38)
- Gene constraint
- LOEUF 0.36 · pLI 1.00 (gnomAD)
- Structure
- AlphaFold pLDDT 61.52
Similar variants
- JPH3 p.Arg319Trp Uncertain significance ★★ ⚠ same type
- JPH3 p.Leu266Val Uncertain significance ★★ ⚠ same type
- JPH3 p.Thr175Met Uncertain significance ★★ ⚠ same type
- JPH3 c.2167-9C>G Benign/Likely benign ★★ same type
- JPH3 p.Ala271= Benign/Likely benign ★★ same type
- JPH3 p.Ala366= Likely benign ★★ same type
- JPH3 p.Ala384= Likely benign ★★ same type
- JPH3 p.Ala523= Benign/Likely benign ★★ 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/jph3-p-ala409 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown