Is CDH2 p.Arg9Gly (c.25C>G) pathogenic?

CDH2 p.Arg9Gly (c.25C>G) is classified Uncertain significance in CDH2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-03-10). AlphaMissense: likely benign (0.1006); Ultra-rare (popmax 0.0116%, afr).

How common is CDH2 p.Arg9Gly (c.25C>G) in the general population?

CDH2 p.Arg9Gly (c.25C>G) is ultra-rare (popmax 0.0116%, afr) (gnomAD).

What do computational predictors say about CDH2 p.Arg9Gly (c.25C>G)?

AlphaMissense predicts likely benign (score 0.1006) — an in-silico prediction, not a clinical call.

CDH2 p.Arg9Gly

c.25C>G · rs1403830213 · VCV1965248

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1006 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0116%, afr)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.1006	likely benign
REVEL	0.29	benign-leaning
SaProt	LLR -6.33	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 4.9	GERP 0.8, phastCons 1
Regional constraint	o/e 0.90	unconstrained · MANE · 165 kb · p 0.17 · 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 0.0116% African / African-American · 8/69,044 alleles

Filtering AF 0.00567% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00419%

Overall 0.000541% 8/1,479,860 alleles · ultra-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: CDH2
Protein: p.Arg9Gly
Coding: c.25C>G
MANE Select: NM_001792
dbSNP: rs1403830213
Type: single nucleotide variant
Location: chr18:28176998 (GRCh38)
Gene constraint: LOEUF 0.336 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 79.68

Full CDH2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CDH2 p.Arg9Trp Uncertain significance ★ ⚠ same residue
CDH2 p.Arg9= Likely benign ★ same residue
CDH2 c.1344+1G>A Pathogenic/Likely pathogenic ★★ same type
CDH2 c.702+1G>A Pathogenic/Likely pathogenic ★★ same type
CDH2 p.Tyr676Cys Pathogenic ★★ same type
CDH2 c.61-1G>A Uncertain significance ★★ same type
CDH2 c.848-16T>G Uncertain significance ★★ same type
CDH2 p.Ala106Val 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/cdh2-p-arg9gly (accessed [today's date]).

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