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CDC42 p.Pro109=

c.327T>A · rs768942398 · VCV1953771

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.01%, 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
ConservationphyloP 5GERP 1.2, phastCons 1
Overall
CADD13.1PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.01% Admixed American · 6/60,016 alleles
Filtering AF 0.00428% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00295%
Overall 0.00041% 6/1,461,830 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
CDC42
Protein
p.Pro109=
Coding
c.327T>A
MANE Select
NM_001791
dbSNP
rs768942398
Type
single nucleotide variant
Location
chr1:22086707 (GRCh38)
Gene constraint
LOEUF 0.611 · pLI 0.87 (gnomAD)
Structure
AlphaFold pLDDT 93.30 · 48 PDB
Full CDC42 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/cdc42-p-pro109 (accessed [today's date]).

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