CDKN1C p.Ala207=
c.621G>C · rs1848929025 · VCV1152015
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00164%, afr)
Conditions
1
Beckwith-Wiedemann syndrome
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | <0.2 | no splice effect predicted · four deltas, not one · how we know |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP -0.95 | GERP -0.75 |
| Overall | ||
| CADD | 9.107 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00164%
African / African-American · 1/61,140 alleles
Overall
8.17e-05%
1/1,223,992 alleles · very rare
exomes 1/1,078,848 · genomes 0/145,144 · joint denominator
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.Ala207=
- Coding
- c.621G>C
- MANE Select
- NM_001122630
- dbSNP
- rs1848929025
- Type
- single nucleotide variant
- Location
- chr11:2884836 (GRCh38)
- Gene constraint
- LOEUF 1.943 · pLI <0.01 · ClinGen HI 3/3 (gnomAD)
- Structure
- AlphaFold pLDDT 63.93
- Residue 207
- the '9 x 4 aa repeats of p-a-p-a' region; the 'disordered' region; a UniProt-annotated variant site (in a breast cancer)
Similar variants
- CDKN1C p.Ala207Val Uncertain significance ★★ ⚠ 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-ala207 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown