CAPRIN2 p.Arg777Trp
c.2329C>T · rs371128243 · VCV3137229
Uncertain significance
Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0379%, eas)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| REVEL | 0.321 | indeterminate |
|---|---|---|
| Splicing | ||
| SpliceAI | <0.2 | all four deltas below 0.2 · G>T here scores Δ0.28 · evaluated, not missing |
| Constraint at this position | ||
| Conservation | phyloP 7.4 | GERP 1.9, phastCons 1 |
| Overall | ||
| CADD | 28.4 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0379%
East Asian · 17/44,876 alleles
Filtering AF
0.0241%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0197%
Overall
0.00452%
73/1,613,822 alleles · ultra-rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| East Asiangrpmax | 0.0379% | 2,640 |
| Admixed American | 0.00667% | 14,997 |
| European (non-Finnish) | 0.00407% | 24,581 |
| African / African-American | 0.00267% | 37,449 |
| Remaining individualsnot grpmax-eligible | 0.0016% | 62,482 |
| Finnishnot grpmax-eligible | 0.00156% | 64,010 |
Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.
Variant & gene context
- Gene
- CAPRIN2
- Protein
- p.Arg777Trp
- Coding
- c.2329C>T
- MANE Select
- NM_001385503
- dbSNP
- rs371128243
- Type
- single nucleotide variant
- Location
- chr12:30715034 (GRCh38)
- Gene constraint
- LOEUF 0.58 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 52.42 · 5 PDB
Similar variants
- CAPRIN2 c.1800+5C>T Benign ★★ same type
- CAPRIN2 p.Met253Thr Benign ★★ same type
- CAPRIN2 p.Ser668= Benign ★★ same type
- CAPRIN2 p.Thr763= Benign ★★ same type
- CAPRIN2 p.Tyr806= Benign ★★ same type
- CAPRIN2 c.-12A>G Uncertain significance ★ same type
- CAPRIN2 c.-2A>C Uncertain significance ★ same type
- CAPRIN2 c.-30G>A 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/caprin2-p-arg777trp (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown