Is CDH2 p.Lys448Arg (c.1343A>G) pathogenic?

CDH2 p.Lys448Arg (c.1343A>G) is classified Uncertain significance in CDH2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-07-09). AlphaMissense: likely benign (0.1282); Absent from gnomAD v4.1; Associated with Inborn genetic diseases.

What condition is associated with CDH2 p.Lys448Arg (c.1343A>G)?

CDH2 p.Lys448Arg (c.1343A>G) is associated with Inborn genetic diseases (ClinVar).

How common is CDH2 p.Lys448Arg (c.1343A>G) in the general population?

CDH2 p.Lys448Arg (c.1343A>G) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about CDH2 p.Lys448Arg (c.1343A>G)?

AlphaMissense predicts likely benign (score 0.1282) — an in-silico prediction, not a clinical call.

CDH2 p.Lys448Arg

c.1343A>G · VCV3265232

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1282 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/2 damaging

AlphaMissense, SaProt · REVEL indeterminate

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.1282	likely benign
REVEL	0.392	indeterminate
SaProt	LLR -9.26	tolerated
⇒ AlphaMissense and SaProt both call this tolerated; REVEL is indeterminate.
Splicing
SpliceAI	Δ0.23	donor gain · deltas
Pangolin	Δ0.20	gain · loss 0.05 · agrees with SpliceAI · independent
Constraint at this position
Conservation	phyloP 7.9	GERP 2.8, phastCons 1
Regional constraint	o/e 0.78	unconstrained · MANE · 27 kb · p 4e-09 · regional, not allelic
Overall
CADD	34.0	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

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: CDH2
Protein: p.Lys448Arg
Coding: c.1343A>G
MANE Select: NM_001792
Type: single nucleotide variant
Location: chr18:27992656 (GRCh38)
Gene constraint: LOEUF 0.336 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 79.68
Residue 448: the cadherin 3 domain

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

Disease context

Inborn genetic diseases — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

CDH2 p.Ala21Val Uncertain significance ★★ ⚠ same condition
CDH2 p.Ala294Gly Uncertain significance ★★ ⚠ same condition
CDH2 p.Ala299Thr Uncertain significance ★★ ⚠ same condition
CDH2 p.Ala415Ser Uncertain significance ★★ ⚠ same condition
CDH2 p.Ala418Ser Uncertain significance ★★ ⚠ same condition
CDH2 p.Ala418Thr Uncertain significance ★★ ⚠ same condition
CDH2 p.Ala610Thr Uncertain significance ★★ ⚠ same condition
CDH2 p.Ala825Val Uncertain significance ★★ ⚠ same condition

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-lys448arg (accessed [today's date]).

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