CACNB2 p.Pro274=
c.822G>A · rs199908591 · VCV1604445
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 0.00223%, eas)
Conditions
2
Cardiovascular phenotype
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP -5.2 | GERP -3.9 |
| Overall | ||
| CADD | 1.307 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00223%
East Asian · 1/44,884 alleles
Filtering AF
0.000689%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.000539%
Overall
0.000992%
16/1,613,106 alleles · very rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| East Asiangrpmax | 0.00223% | 44,884 |
| African / African-American | 0.00133% | 75,014 |
| European (non-Finnish) | 0.00119% | 84,220 |
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
- CACNB2
- Protein
- p.Pro274=
- Coding
- c.822G>A
- MANE Select
- NM_201596
- dbSNP
- rs199908591
- Type
- single nucleotide variant
- Location
- chr10:18518353 (GRCh38)
- Gene constraint
- LOEUF 0.77 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 65.78 · 3 PDB
Similar variants
- CACNB2 p.Pro274Leu Uncertain significance ★★ ⚠ same residue
- CACNB2 c.1206+5G>A Uncertain significance ★★ same condition
- CACNB2 c.1303-3C>T Uncertain significance ★★ same condition
- CACNB2 c.1488+6G>A Uncertain significance ★★ same condition
- CACNB2 p.Ala105Thr Uncertain significance ★★ ⚠ same condition
- CACNB2 p.Ala118Val Uncertain significance ★★ ⚠ same condition
- CACNB2 p.Ala128Val Uncertain significance ★★ ⚠ same condition
- CACNB2 p.Ala139Ser Uncertain significance ★★ ⚠ same condition
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/cacnb2-p-pro274 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown