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CDC42BPB p.Pro1307=

c.3921G>A · rs141912309 · VCV3049207

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
ultra-rare (popmax 0.0397%, nfe)

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 -20GERP -4.2
Overall
CADD0.062PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0397% European (non-Finnish) · 468/1,180,016 alleles
Filtering AF 0.0367% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0355%
Overall 0.0311% 501/1,613,152 alleles · ultra-rare exomes 472/1,460,826 · genomes 29/152,326 · joint denominator
Ancestry group Frequency 1 in
European (non-Finnish)grpmax 0.0397% 2,521
Admixed American 0.015% 6,668
Remaining individualsnot grpmax-eligible 0.0112% 8,927
African / African-American 0.0107% 9,383
Finnishnot grpmax-eligible 0.00952% 10,507
East Asian 0.00223% 44,882
South Asian 0.0022% 45,537

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
CDC42BPB
Protein
p.Pro1307=
Coding
c.3921G>A
MANE Select
NM_006035
dbSNP
rs141912309
Type
single nucleotide variant
Location
chr14:102944378 (GRCh38)
Gene constraint
LOEUF 0.235 · pLI 1.00 · ClinGen HI 2/3 (gnomAD)
Structure
AlphaFold pLDDT 76.28 · 6 PDB
Residue 1307
a UniProt-annotated variant site (in chocns); the cnh domain
Full CDC42BPB 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/cdc42bpb-p-pro1307 (accessed [today's date]).

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