Is CDC42BPG p.Pro1527Arg (c.4580C>G) pathogenic?

CDC42BPG p.Pro1527Arg (c.4580C>G) is classified Uncertain significance in CDC42BPG (ClinVar, Single submitter, 1 submitter; last evaluated 2022-12-13). AlphaMissense: likely benign (0.0976); Very rare (popmax 8.52e-05%, nfe).

How common is CDC42BPG p.Pro1527Arg (c.4580C>G) in the general population?

CDC42BPG p.Pro1527Arg (c.4580C>G) is very rare (popmax 8.52e-05%, nfe) (gnomAD).

What do computational predictors say about CDC42BPG p.Pro1527Arg (c.4580C>G)?

AlphaMissense predicts likely benign (score 0.0976) — an in-silico prediction, not a clinical call.

CDC42BPG p.Pro1527Arg

c.4580C>G · rs1338142073 · VCV2334360

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0976 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 8.52e-05%, nfe)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0976	likely benign
REVEL	0.265	benign-leaning
SaProt	LLR -6.48	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 8.5	GERP 1.6, phastCons 1
Regional constraint	o/e 1.21	unconstrained · MANE · 3,214 bp · p 0.00049 · regional, not allelic
Overall
CADD	24.0	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 8.52e-05% European (non-Finnish) · 1/1,174,186 alleles

Overall 6.9e-05% 1/1,449,048 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: CDC42BPG
Protein: p.Pro1527Arg
Coding: c.4580C>G
MANE Select: NM_017525
dbSNP: rs1338142073
Type: single nucleotide variant
Location: chr11:64826489 (GRCh38)
Gene constraint: LOEUF 1.039 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 72.90
Residue 1527: the 'disordered' region

Full CDC42BPG gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CDC42BPG p.Ile77= Benign ★★ same type
CDC42BPG p.Lys467Asn Benign ★★ same type
CDC42BPG p.Pro1257= Benign ★★ same type
CDC42BPG p.Ala1013Val Uncertain significance ★ ⚠ same type
CDC42BPG p.Ala1036Val Uncertain significance ★ ⚠ same type
CDC42BPG p.Ala1071Val Uncertain significance ★ ⚠ same type
CDC42BPG p.Ala1098Thr Uncertain significance ★ ⚠ same type
CDC42BPG p.Ala1242Val Uncertain significance ★ ⚠ same type

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/cdc42bpg-p-pro1527arg (accessed [today's date]).

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