Is GLA p.Arg301Ter (c.901C>T) pathogenic?

GLA p.Arg301Ter (c.901C>T) is classified Pathogenic in GLA (ClinVar, Multiple submitters, 11 submitters; last evaluated 2026-09-08). Absent from gnomAD v4.1; Associated with Fabry disease.

What condition is associated with GLA p.Arg301Ter (c.901C>T)?

GLA p.Arg301Ter (c.901C>T) is associated with Fabry disease (ClinVar).

How common is GLA p.Arg301Ter (c.901C>T) in the general population?

GLA p.Arg301Ter (c.901C>T) is absent from gnomAD v4.1 (gnomAD).

How is Fabry disease inherited?

Typically X-linked dominant, X-linked recessive (Orphanet). A genetic counselor can assess individual risk for a family.

GLA p.Arg301Ter

c.901C>T · rs398123224 · VCV92570

Pathogenic Multiple submitters

Classification

Pathogenic

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 11 submitters

Consequence

nonsense (stop-gain)

predicted LoF

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

Fabry disease

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequence	nonsense (stop-gain)	predicted loss-of-function in a haploinsufficient gene (ClinGen)
NMD	predicted	premature termination codon in exon 6 of 7
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 2.4	GERP 0.18, phastCons 1
Overall
CADD	35.0	PHRED · no single calibrated threshold — expert panels disagree

Predicted loss-of-function is descriptive, not an applied PVS1 code.

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: GLA
Protein: p.Arg301Ter
Coding: c.901C>T
MANE Select: NM_000169
dbSNP: rs398123224
Type: single nucleotide variant
Location: chrX:101398468 (GRCh38)
Structure: AlphaFold pLDDT 94.45 · 31 PDB
Residue 301: a UniProt-annotated variant site (in fabryd; does not significantly affect the enzyme activity but the mutant protein levels are decreased presumably in the er of the cells)

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

Disease context

Fabry disease — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Fabry disease (Orphanet):

Inheritance: X-linked dominant, X-linked recessive
Onset: Adolescent, Adult, Childhood
Prevalence: 1-9 / 1 000 000 (Worldwide)

Similar variants

GLA p.Arg301Gln Pathogenic ★★ ⚠ same residue
GLA p.Arg301Gly Pathogenic ★★ same residue
GLA p.Arg301Pro Pathogenic ★★ same residue
GLA p.Arg301Leu Pathogenic ★ same residue
GLA p.Arg301= Likely benign ★ same residue
GLA p.Arg301fs Pathogenic ★ same residue
GLA c.1000-10G>A Likely pathogenic ★★ same condition
GLA c.1000-1G>A 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/gla-p-arg301ter (accessed [today's date]).

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