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ARSA p.Thr48fs

c.141del · VCV4850935

Likely pathogenic Single submitter
Classification
Likely pathogenic
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
Consequence
frameshift
predicted LoF
gnomAD v4.1
Rare
Conditions
1
metachromatic leukodystrophy

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequenceframeshiftpredicted loss-of-function
NMDpredictedpremature termination codon in exon 1 of 8
Splicing
SpliceAI—not assessed · substitutions only
Constraint at this position
ConservationphyloP 7.8GERP 2.2, phastCons 1

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

Variant & gene context

Gene
ARSA
Protein
p.Thr48fs
Coding
c.141del
MANE Select
NM_000487
Type
Deletion
Location
chr22:50627639 (GRCh38)
Gene constraint
LOEUF 1.166 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 96.43 · 10 PDB
Residue 48
an α-helix
Full ARSA gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

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

For Metachromatic leukodystrophy (Orphanet):

Inheritance
Autosomal recessive
Onset
Adolescent, Adult, Childhood, Infancy
Prevalence
1-9 / 100 000 (Europe)

Similar variants

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/arsa-p-thr48fs (accessed [today's date]).

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