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CDKN1C p.Pro197fs

c.590del · rs2133783113 · VCV1329632

Likely pathogenic Single submitter
Classification
Likely pathogenic
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
Consequence
frameshift
predicted LoF
gnomAD v4.1
Rare
very rare (popmax 0.000153%, nfe)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequenceframeshiftpredicted loss-of-function in a haploinsufficient gene (ClinGen); NMD-escape possible for C-terminal truncations
Splicing
SpliceAI—not assessed · substitutions only
Constraint at this position
ConservationphyloP -7GERP -0.65
Region caveats
Repeat contexttandemG-rich low complexity, simple repeat · ambiguous alignment · confidence, not pathogenicity

Predicted loss-of-function is descriptive, not an applied PVS1 code.

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.000153% European (non-Finnish) · 1/651,858 alleles
Overall 0.000151% 1/660,368 alleles · very rare

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.Pro197fs
Coding
c.590del
MANE Select
NM_001122630
dbSNP
rs2133783113
Type
Deletion
Location
chr11:2884867 (GRCh38)
Gene constraint
LOEUF 1.943 · pLI <0.01 · ClinGen HI 3/3 (gnomAD)
Structure
AlphaFold pLDDT 63.93
Residue 197
the '9 x 4 aa repeats of p-a-p-a' region; the 'disordered' region
Full CDKN1C gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

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-pro197fs (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown