FIG4 p.Arg841=
c.2523G>A · rs1554309865 · VCV476862
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 0.0011%, sas)
Conditions
1
Charcot-Marie-Tooth disease type 4
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | <0.2 | all four deltas below 0.2 · G>C here scores Δ0.20 · evaluated, not missing |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP 2.6 | GERP 0.95, phastCons 1 |
| Overall | ||
| CADD | 8.049 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0011%
South Asian · 1/90,908 alleles
Overall
6.23e-05%
1/1,605,908 alleles · very rare
exomes 1/1,453,600 · genomes 0/152,308 · joint denominator
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
- FIG4
- Protein
- p.Arg841=
- Coding
- c.2523G>A
- MANE Select
- NM_014845
- dbSNP
- rs1554309865
- Type
- single nucleotide variant
- Location
- chr6:109796828 (GRCh38)
- Gene constraint
- LOEUF 0.966 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 80.65 · 1 PDB
Similar variants
- FIG4 c.1040-1G>A Likely pathogenic ★★ same condition
- FIG4 c.1584-1G>T Likely pathogenic ★★ same condition
- FIG4 c.1948+1G>A Likely pathogenic ★★ same condition
- FIG4 c.1949-10T>G Pathogenic/Likely pathogenic ★★ same condition
- FIG4 c.2459+1G>A Pathogenic ★★ same condition
- FIG4 c.877-2A>C Pathogenic/Likely pathogenic ★★ same condition
- FIG4 p.Arg152Ter Pathogenic/Likely pathogenic ★★ same condition
- FIG4 p.Arg183Ter 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/fig4-p-arg841 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown