PRPH2 p.Val312Met
c.934G>A · rs771015384 · VCV2150538
Uncertain significance
Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00167%, amr)
Conditions
1
PRPH2-related disorder
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| REVEL | 0.075 | moderately benign-leaning |
|---|---|---|
| Splicing | ||
| SpliceAI | <0.2 | no splice effect predicted · four deltas, not one · how we know |
| Constraint at this position | ||
| Conservation | phyloP -0.093 | GERP -0.41 |
| Regional constraint | o/e 0.98 | unconstrained · MANE · 24 kb · p 0.64 · regional, not allelic |
| Overall | ||
| CADD | 17.77 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00167%
Admixed American · 1/59,996 alleles
Filtering AF
0.000878%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.000718%
Overall
0.0013%
21/1,613,752 alleles · very rare
exomes 19/1,461,548 · genomes 2/152,204 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Admixed Americangrpmax | 0.00167% | 59,996 |
| Remaining individualsnot grpmax-eligible | 0.0016% | 62,468 |
| European (non-Finnish) | 0.00144% | 69,398 |
| African / African-American | 0.00133% | 74,930 |
| South Asian | 0.0011% | 91,082 |
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.Val312Met
- Coding
- c.934G>A
- MANE Select
- NM_000322
- dbSNP
- rs771015384
- Type
- single nucleotide variant
- Location
- chr6:42698402 (GRCh38)
- Gene constraint
- LOEUF 0.773 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 87.56 · 1 PDB
Similar variants
- PRPH2 p.Val312fs 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
- PRPH2 p.Arg195Leu 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-val312met (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown