PRX p.Val100=
c.300G>A · rs747794739 · VCV917180
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.0011%, sas)
Conditions
1
Charcot-Marie-Tooth disease
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 2.1 | GERP 1.1, phastCons 1 |
| Overall | ||
| CADD | 11.41 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0011%
South Asian · 1/91,090 alleles
Filtering AF
7.9e-05%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 5.4e-05%
Overall
0.00031%
5/1,614,062 alleles · very rare
exomes 5/1,461,760 · genomes 0/152,302 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| South Asiangrpmax | 0.0011% | 91,090 |
| European (non-Finnish) | 0.000339% | 294,990 |
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
- PRX
- Protein
- p.Val100=
- Coding
- c.300G>A
- MANE Select
- NM_181882
- dbSNP
- rs747794739
- Type
- single nucleotide variant
- Location
- chr19:40398701 (GRCh38)
- Gene constraint
- LOEUF 1.321 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 35.74 · 1 PDB
Similar variants
- PRX p.Arg196Ter Pathogenic/Likely pathogenic ★★ same condition
- PRX p.Arg364Ter Pathogenic ★★ same condition
- PRX p.Arg953Ter Pathogenic ★★ same condition
- PRX p.Cys715Ter Pathogenic/Likely pathogenic ★★ same condition
- PRX p.Gln622Ter Pathogenic/Likely pathogenic ★★ same condition
- PRX p.Glu197Ter Pathogenic/Likely pathogenic ★★ same condition
- PRX p.Ala1000Val Uncertain significance ★★ ⚠ same condition
- PRX p.Ala1091Thr Uncertain significance ★★ ⚠ 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/prx-p-val100 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown