Is CDH2 p.Ala418Thr (c.1252G>A) pathogenic?

CDH2 p.Ala418Thr (c.1252G>A) is classified Uncertain significance in CDH2 (ClinVar, Multiple submitters, 2 submitters; last evaluated 2025-08-17). AlphaMissense: likely benign (0.1501); Very rare (popmax 0.005%, amr); Associated with Inborn genetic diseases.

What condition is associated with CDH2 p.Ala418Thr (c.1252G>A)?

CDH2 p.Ala418Thr (c.1252G>A) is associated with Inborn genetic diseases (ClinVar).

How common is CDH2 p.Ala418Thr (c.1252G>A) in the general population?

CDH2 p.Ala418Thr (c.1252G>A) is very rare (popmax 0.005%, amr) (gnomAD).

What do computational predictors say about CDH2 p.Ala418Thr (c.1252G>A)?

AlphaMissense predicts likely benign (score 0.1501) — an in-silico prediction, not a clinical call.

CDH2 p.Ala418Thr

c.1252G>A · rs200263846 · VCV1761098

Uncertain significance Multiple submitters

Classification

Uncertain significance

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

AlphaMissense

likely benign

0.1501 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.005%, amr)

Missense predictors

1/2 damaging

AlphaMissense, SaProt · REVEL no call

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.1501	likely benign
REVEL	0.331	indeterminate
SaProt	LLR -11.38	damaging
⇒ SaProt calls this damaging; AlphaMissense does not; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 5.9	GERP 2.8, phastCons 1
Regional constraint	o/e 0.78	unconstrained · MANE · 27 kb · p 4e-09 · regional, not allelic
Overall
CADD	25.1	PHRED · no single calibrated threshold — expert panels disagree

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

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.005% Admixed American · 3/59,998 alleles

Filtering AF 0.00133% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000668%

Overall 0.0013% 21/1,613,728 alleles · very rare

Ancestry group	Frequency	1 in
Admixed Americangrpmax	0.005%	19,999
African / African-American	0.00267%	37,450
South Asian	0.0022%	45,534
European (non-Finnish)	0.00119%	84,271

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.Ala418Thr
Coding: c.1252G>A
MANE Select: NM_001792
dbSNP: rs200263846
Type: single nucleotide variant
Location: chr18:27992747 (GRCh38)
Gene constraint: LOEUF 0.336 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 79.68
Residue 418: 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.Ala418Ser Uncertain significance ★★ ⚠ same residue
CDH2 p.Ala418= Likely benign ★ same residue
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.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-ala418thr (accessed [today's date]).

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