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ASPA p.Pro245fs

c.734del · rs2543648257 · VCV2815511

Pathogenic Single submitter
Classification
Pathogenic
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
Consequence
frameshift
predicted LoF
gnomAD v4.1
Not reported
no gnomAD frequency available for this variant
Conditions
1
Canavan disease

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequenceframeshiftpredicted loss-of-function
NMDescapespremature termination codon within the last 50 nt of the penultimate exon (5 of 6, 11 nt from its 3' end) — the truncated protein is likely expressed. PVS1 input, not an applied code
Splicing
SpliceAI—not assessed · substitutions only
Constraint at this position
ConservationphyloP 0.16GERP -3.7, phastCons 0.98

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

Population frequency

dbSNP / gnomAD

No gnomAD frequency available for this variant. This is missing data, not an absence: the variant may or may not be present in gnomAD. Rarity (ACMG PM2) and BA1/BS1 cannot be assessed for it.

Variant & gene context

Gene
ASPA
Protein
p.Pro245fs
Coding
c.734del
MANE Select
NM_000049
dbSNP
rs2543648257
Type
Deletion
Location
chr17:3494448 (GRCh38)
Gene constraint
LOEUF 1.098 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure
AlphaFold pLDDT 96.14 · 8 PDB
Residue 245
a turn
Full ASPA gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

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

For Canavan disease (Orphanet):

Inheritance
Autosomal recessive
Onset
Childhood, Infancy, Neonatal

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/aspa-p-pro245fs (accessed [today's date]).

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