Is AARS1 p.Pro129= (c.387C>T) pathogenic?

AARS1 p.Pro129= (c.387C>T) is classified Likely benign in AARS1 (ClinVar, Single submitter, 2 submitters; last evaluated 2022-11-28). Absent from gnomAD v4.1; Associated with Charcot-Marie-Tooth disease type 2.

What condition is associated with AARS1 p.Pro129= (c.387C>T)?

AARS1 p.Pro129= (c.387C>T) is associated with Charcot-Marie-Tooth disease type 2, Charcot-Marie-Tooth disease axonal type 2N (ClinVar).

How common is AARS1 p.Pro129= (c.387C>T) in the general population?

AARS1 p.Pro129= (c.387C>T) is absent from gnomAD v4.1 (gnomAD).

AARS1 p.Pro129=

c.387C>T · rs1960557000 · VCV1682312

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 2 submitters

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

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	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP -2	GERP -3.7
Overall
CADD	3.906	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: AARS1
Protein: p.Pro129=
Coding: c.387C>T
MANE Select: NM_001605
dbSNP: rs1960557000
Type: single nucleotide variant
Location: chr16:70276578 (GRCh38)
Gene constraint: LOEUF 0.772 · pLI <0.01 · ClinGen HI 0/3 (gnomAD)
Structure: AlphaFold pLDDT 90.66 · 10 PDB

Full AARS1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Charcot-Marie-Tooth disease type 2 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: Charcot-Marie-Tooth disease axonal type 2N

Similar variants

AARS1 p.Pro129Ala Conflicting classifications of pathogenicity ★ ⚠ same residue
AARS1 p.Pro129Leu Uncertain significance ★ ⚠ same residue
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

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-pro129 (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown