CDKN1C p.Ser233=
c.699G>C · rs751650132 · VCV524730
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0104%, nfe)
Conditions
1
Beckwith-Wiedemann syndrome
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 -0.027 | GERP -0.58, phastCons 0.97 |
| Overall | ||
| CADD | 11.25 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0104%
European (non-Finnish) · 118/1,132,880 alleles
Filtering AF
0.00886%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00828%
Overall
0.00801%
121/1,510,490 alleles · ultra-rare
exomes 114/1,359,408 · genomes 7/151,082 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| European (non-Finnish)grpmax | 0.0104% | 9,601 |
| African / African-American | 0.00289% | 34,645 |
| Admixed American | 0.00194% | 51,634 |
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
- CDKN1C
- Protein
- p.Ser233=
- Coding
- c.699G>C
- MANE Select
- NM_001122630
- dbSNP
- rs751650132
- Type
- single nucleotide variant
- Location
- chr11:2884758 (GRCh38)
- Gene constraint
- LOEUF 1.943 · pLI <0.01 · ClinGen HI 3/3 (gnomAD)
- Structure
- AlphaFold pLDDT 63.93
- Residue 233
- the 'disordered' region
Similar variants
- CDKN1C p.Ser233Ter Pathogenic ★★ same residue
- CDKN1C p.Asp263Asn Pathogenic ★★ ⚠ same condition
- CDKN1C p.Cys19Ter Pathogenic/Likely pathogenic ★★ same condition
- CDKN1C p.Gln219Ter Pathogenic ★★ same condition
- CDKN1C p.Gln221Ter Pathogenic ★★ same condition
- CDKN1C p.Gln230Ter Pathogenic ★★ same condition
- CDKN1C p.Glu119Ter Pathogenic ★★ same condition
- CDKN1C p.Glu214Ter Pathogenic ★★ 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/cdkn1c-p-ser233 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown