PRPH2 p.Ser76=
c.228G>A · rs371990988 · VCV2102964
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0329%, mid)
Conditions
1
PRPH2-related disorder
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 -0.048 | GERP -3.3, phastCons 0.017 |
| Overall | ||
| CADD | 9.636 | 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
0.0058%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00309%
Overall
0.00167%
27/1,614,000 alleles · ultra-rare
exomes 23/1,461,890 · genomes 4/152,110 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Middle Easterngrpmax | 0.0329% | 3,042 |
| African / African-American | 0.00935% | 10,699 |
| Admixed American | 0.005% | 20,000 |
| Remaining individualsnot grpmax-eligible | 0.0048% | 20,830 |
| South Asian | 0.0011% | 91,084 |
| European (non-Finnish) | 0.000932% | 107,274 |
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
- PRPH2
- Protein
- p.Ser76=
- Coding
- c.228G>A
- MANE Select
- NM_000322
- dbSNP
- rs371990988
- Type
- single nucleotide variant
- Location
- chr6:42722107 (GRCh38)
- Gene constraint
- LOEUF 0.773 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 87.56 · 1 PDB
Similar variants
- PRPH2 p.Ser76Ter Pathogenic ★★ same residue
- PRPH2 p.Ser76fs Likely pathogenic ★ same residue
- PRPH2 c.582-1G>A Pathogenic/Likely pathogenic ★★ same condition
- PRPH2 c.828+1G>A Pathogenic ★★ same condition
- PRPH2 c.828+1G>T Pathogenic ★★ same condition
- PRPH2 c.828+2T>C Pathogenic/Likely pathogenic ★★ same condition
- PRPH2 c.828+3A>T Pathogenic ★★ same condition
- PRPH2 p.Arg142Trp Pathogenic/Likely pathogenic ★★ same condition
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/prph2-p-ser76 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown