ARSG p.Cys520Arg
c.1558T>C · VCV4643190
Uncertain significance
Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
AlphaMissense
likely pathogenic
0.9441 · ACMG-weighted
gnomAD v4.1
Absent
absent from gnomAD v4.1
Missense predictors
2/3 damaging
AlphaMissense, REVEL, SaProt
Computational evidence
| Protein change | ||
| AlphaMissense | 0.9441 | likely pathogenic · top 5% in ARSG |
|---|---|---|
| REVEL | 0.739 | pathogenic-leaning |
| SaProt | LLR -9.56 | tolerated |
| ⇒ AlphaMissense and REVEL call this damaging; SaProt does not. | ||
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
| Constraint at this position | ||
| Conservation | phyloP 7.7 | GERP 1.8, phastCons 1 |
| Regional constraint | o/e 0.93 | unconstrained · MANE · 113 kb · p 0.075 · regional, not allelic |
| Overall | ||
| CADD | 24.6 | PHRED · no single calibrated threshold — expert panels disagree |
AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.
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
- ARSG
- Protein
- p.Cys520Arg
- Coding
- c.1558T>C
- MANE Select
- NM_001267727
- Type
- single nucleotide variant
- Location
- chr17:68420443 (GRCh38)
- Gene constraint
- LOEUF 0.996 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 91.90
Similar variants
- ARSG p.Cys520Ter Uncertain significance ★★ same residue
- ARSG c.1091+1G>A Likely pathogenic ★★ same type
- ARSG c.982+2T>G Likely pathogenic ★★ same type
- ARSG p.Ala180Val Uncertain significance ★★ ⚠ same type
- ARSG p.Ala262Val Uncertain significance ★★ ⚠ same type
- ARSG p.Ala313Val Uncertain significance ★★ ⚠ same type
- ARSG p.Ala374Pro Uncertain significance ★★ ⚠ same type
- ARSG p.Ala437Val Uncertain significance ★★ ⚠ 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/arsg-p-cys520arg (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown