AARS1 p.Ala643=
c.1929C>T · rs2506997815 · VCV2769486
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 8.47e-05%, nfe)
Conditions
1
Charcot-Marie-Tooth disease type 2
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 1.7 | GERP -2.8, phastCons 1 |
| Overall | ||
| CADD | 10.78 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
8.47e-05%
European (non-Finnish) · 1/1,180,024 alleles
Overall
6.2e-05%
1/1,614,150 alleles · very rare
exomes 1/1,461,890 · genomes 0/152,260 · 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
- AARS1
- Protein
- p.Ala643=
- Coding
- c.1929C>T
- MANE Select
- NM_001605
- dbSNP
- rs2506997815
- Type
- single nucleotide variant
- Location
- chr16:70259043 (GRCh38)
- Gene constraint
- LOEUF 0.772 · pLI <0.01 · ClinGen HI 0/3 (gnomAD)
- Structure
- AlphaFold pLDDT 90.66 · 10 PDB
Similar variants
- AARS1 c.2177+1G>A Pathogenic/Likely pathogenic ★★ same condition
- AARS1 p.Arg13Ter Pathogenic ★★ same condition
- AARS1 p.Arg246Ter Pathogenic/Likely pathogenic ★★ same condition
- AARS1 p.Arg329Cys Likely pathogenic ★★ same condition
- AARS1 p.Arg329His Pathogenic/Likely pathogenic ★★ same condition
- AARS1 p.Arg330Ter Pathogenic/Likely pathogenic ★★ same condition
- AARS1 p.Arg333Ter Pathogenic/Likely pathogenic ★★ same condition
- AARS1 p.Arg598Ter 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/aars1-p-ala643 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown