ARSA p.Pro194Ala
c.580C>G · rs777554660 · VCV3237247
Uncertain significance
Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Absent
absent from gnomAD v4.1
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| REVEL | 0.359 | indeterminate |
|---|---|---|
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
| Constraint at this position | ||
| Conservation | phyloP 9.4 | GERP 2.2, phastCons 1 |
| Regional constraint | o/e 1.00 | unconstrained · MANE · 2,631 bp · p 0.96 · regional, not allelic |
| Overall | ||
| CADD | 17.37 | 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
- ARSA
- Protein
- p.Pro194Ala
- Coding
- c.580C>G
- MANE Select
- NM_000487
- dbSNP
- rs777554660
- Type
- single nucleotide variant
- Location
- chr22:50626938 (GRCh38)
- Gene constraint
- LOEUF 1.166 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 96.43 · 10 PDB
- Residue 194
- an α-helix
Similar variants
- ARSA p.Pro194Arg Pathogenic/Likely pathogenic ★★ same residue
- ARSA p.Pro194His Likely pathogenic ★★ same residue
- ARSA p.Pro194Ser Conflicting classifications of pathogenicity ★ same residue
- ARSA p.Pro194= Likely benign ★ same residue
- ARSA c.1107+1G>A Pathogenic/Likely pathogenic ★★ same type
- ARSA c.1107+1G>T Pathogenic ★★ same type
- ARSA c.1108-2A>G Pathogenic ★★ same type
- ARSA c.1108-3C>G Pathogenic/Likely pathogenic ★★ same type
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-pro194ala (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown