CAMK2B p.Arg641=
c.1923C>T · rs56347500 · VCV1012799
Benign/Likely benign
Multiple submitters
Classification
Benign/Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 3 submitters
gnomAD v4.1
Rare
low-frequency (popmax 1.88%, mid)
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 -3.2 | GERP -3.7 |
| Overall | ||
| CADD | 4.956 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
1.88%
Middle Eastern · 114/6,062 alleles
Filtering AF
1.6%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 1.5%
Overall
0.577%
9,300/1,612,370 alleles · low-frequency
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Middle Easterngrpmax | 1.88% | 53 |
| Amishnot grpmax-eligible | 1.86% | 54 |
| Finnishnot grpmax-eligible | 1.3% | 77 |
| Ashkenazi Jewishnot grpmax-eligible | 0.832% | 120 |
| Remaining individualsnot grpmax-eligible | 0.708% | 141 |
| European (non-Finnish) | 0.609% | 164 |
| Admixed American | 0.475% | 210 |
| South Asian | 0.138% | 723 |
| African / African-American | 0.103% | 975 |
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
- CAMK2B
- Protein
- p.Arg641=
- Coding
- c.1923C>T
- MANE Select
- NM_001220
- dbSNP
- rs56347500
- Type
- single nucleotide variant
- Location
- chr7:44220140 (GRCh38)
- Gene constraint
- LOEUF 0.45 · pLI 1.00 · ClinGen HI 1/3 (gnomAD)
- Structure
- AlphaFold pLDDT 72.35 · 4 PDB
- Residue 641
- a UniProt-annotated variant site (in mrd54); a β-strand
Similar variants
- CAMK2B p.Arg641Cys Uncertain significance ★★ ⚠ same residue
- CAMK2B c.903+2T>C Likely pathogenic ★★ same type
- CAMK2B p.Arg29Ter Pathogenic/Likely pathogenic ★★ same type
- CAMK2B p.Glu110Lys Pathogenic ★★ same type
- CAMK2B p.Glu237Lys Pathogenic ★★ same type
- CAMK2B p.Lys301Glu Pathogenic/Likely pathogenic ★★ same type
- CAMK2B p.Pro139Leu Pathogenic/Likely pathogenic ★★ same type
- CAMK2B c.1059+1G>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/camk2b-p-arg641 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown