CDK13 p.Arg218=
c.652C>A · rs946488812 · VCV746765
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0237%, amr)
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 2.7 | GERP 0.57, phastCons 1 |
| Overall | ||
| CADD | 12.47 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0237%
Admixed American · 6/25,296 alleles
Filtering AF
0.0103%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00696%
Overall
0.000586%
8/1,365,396 alleles · ultra-rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Admixed Americangrpmax | 0.0237% | 4,216 |
| Remaining individualsnot grpmax-eligible | 0.00385% | 25,989 |
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
- CDK13
- Protein
- p.Arg218=
- Coding
- c.652C>A
- MANE Select
- NM_003718
- dbSNP
- rs946488812
- Type
- single nucleotide variant
- Location
- chr7:39951293 (GRCh38)
- Gene constraint
- LOEUF 0.434 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
- Structure
- AlphaFold pLDDT 50.59 · 2 PDB
- Residue 218
- the 'disordered' region
Similar variants
- CDK13 p.Ala732Thr Likely pathogenic ★★ same type
- CDK13 p.Arg1025Ter Pathogenic/Likely pathogenic ★★ same type
- CDK13 p.Arg737Cys Pathogenic ★★ same type
- CDK13 p.Arg751Gln Pathogenic/Likely pathogenic ★★ same type
- CDK13 p.Arg860Gln Pathogenic/Likely pathogenic ★★ same type
- CDK13 p.Arg880Cys Pathogenic/Likely pathogenic ★★ same type
- CDK13 p.Asn842Asp Pathogenic/Likely pathogenic ★★ same type
- CDK13 p.Asn842Ser 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/cdk13-p-arg218 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown