IMPG2 p.Ser482=
c.1446C>T · rs1706471249 · VCV1939024
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Absent
absent from gnomAD v4.1
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation/SpliceAI carries the signal. | ||
| Splicing | ||
| SpliceAI | Δ0.40 | donor gain · deltas |
|---|---|---|
| Pangolin | Δ0.45 | gain · loss 0.00 · agrees with SpliceAI · independent |
| Constraint at this position | ||
| Conservation | phyloP 4.4 | GERP 0.088, phastCons 1 |
| Overall | ||
| CADD | 17.63 | 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
- IMPG2
- Protein
- p.Ser482=
- Coding
- c.1446C>T
- MANE Select
- NM_016247
- dbSNP
- rs1706471249
- Type
- single nucleotide variant
- Location
- chr3:101245899 (GRCh38)
- Gene constraint
- LOEUF 0.773 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 54.28
- Residue 482
- a UniProt-annotated variant site (in rp56); a UniProt-annotated variant site (in vmd5)
Similar variants
- IMPG2 p.Ser482Ter Likely pathogenic ★ same residue
- IMPG2 c.1240-1G>A Likely pathogenic ★★ same type
- IMPG2 c.1240-2A>G Pathogenic/Likely pathogenic ★★ same type
- IMPG2 c.502-2A>G Likely pathogenic ★★ same type
- IMPG2 c.583+1G>C Pathogenic/Likely pathogenic ★★ same type
- IMPG2 c.667-1G>A Pathogenic/Likely pathogenic ★★ same type
- IMPG2 c.828+1G>A Pathogenic/Likely pathogenic ★★ same type
- IMPG2 c.829-1G>T 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/impg2-p-ser482 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown