CAPN1 p.Thr440=
c.1320T>A · rs11826089 · VCV732657
Benign
Multiple submitters
Classification
Benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 4 submitters
gnomAD v4.1
Rare
low-frequency (popmax 1.32%, afr)
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 0.2 | GERP 0.69, phastCons 0.97 |
| Overall | ||
| CADD | 5.351 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
1.32%
African / African-American · 993/75,026 alleles
Filtering AF
1.26%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 1.23%
Overall
0.0705%
1,135/1,610,080 alleles · low-frequency
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 1.32% | 76 |
| Remaining individualsnot grpmax-eligible | 0.117% | 854 |
| Admixed American | 0.1% | 1,000 |
| South Asian | 0.00439% | 22,756 |
| European (non-Finnish) | 0.000425% | 235,530 |
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
- CAPN1
- Protein
- p.Thr440=
- Coding
- c.1320T>A
- MANE Select
- NM_005186
- dbSNP
- rs11826089
- Type
- single nucleotide variant
- Location
- chr11:65204837 (GRCh38)
- Gene constraint
- LOEUF 0.977 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 90.03 · 5 PDB
- Residue 440
- the 'domain iii' region
Similar variants
- CAPN1 c.1605+5G>A Pathogenic/Likely pathogenic ★★ same type
- CAPN1 c.267+2T>C Pathogenic/Likely pathogenic ★★ same type
- CAPN1 c.338-1G>A Pathogenic ★★ same type
- CAPN1 c.759+1G>A Pathogenic ★★ same type
- CAPN1 c.843+1G>C Pathogenic/Likely pathogenic ★★ same type
- CAPN1 c.929+2T>A Likely pathogenic ★★ same type
- CAPN1 p.Arg285Ter Pathogenic/Likely pathogenic ★★ same type
- CAPN1 p.Arg385Ter 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/capn1-p-thr440 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown