Is CDH6 p.Ile329Met (c.987A>G) pathogenic?

CDH6 p.Ile329Met (c.987A>G) is classified Uncertain significance in CDH6 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-09-10). AlphaMissense: likely benign (0.1778); Very rare (popmax 0.00017%, nfe).

How common is CDH6 p.Ile329Met (c.987A>G) in the general population?

CDH6 p.Ile329Met (c.987A>G) is very rare (popmax 0.00017%, nfe) (gnomAD).

What do computational predictors say about CDH6 p.Ile329Met (c.987A>G)?

AlphaMissense predicts likely benign (score 0.1778) — an in-silico prediction, not a clinical call.

CDH6 p.Ile329Met

c.987A>G · VCV4223977

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1778 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00017%, nfe)

Missense predictors

1/2 damaging

AlphaMissense, SaProt · REVEL no call

Computational evidence

Protein change
AlphaMissense	0.1778	likely benign
REVEL	0.445	indeterminate
SaProt	LLR -12.11	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 2.1	GERP -3.4, phastCons 1
Regional constraint	o/e 0.65	unconstrained · MANE · 50 kb · p 7.7e-20 · regional, not allelic
Overall
CADD	22.1	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 0.00017% European (non-Finnish) · 2/1,177,824 alleles

Filtering AF 2.8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.1e-05%

Overall 0.000137% 2/1,458,884 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: CDH6
Protein: p.Ile329Met
Coding: c.987A>G
MANE Select: NM_004932
Type: single nucleotide variant
Location: chr5:31302286 (GRCh38)
Gene constraint: LOEUF 0.511 · pLI 0.95 (gnomAD)
Structure: AlphaFold pLDDT 78.67 · 1 PDB
Residue 329: the cadherin 3 domain

Full CDH6 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CDH6 p.Ile329Val Uncertain significance ★ ⚠ same residue
CDH6 p.Ala130Val Uncertain significance ★ ⚠ same type
CDH6 p.Ala489Ser Uncertain significance ★ ⚠ same type
CDH6 p.Ala634Gly Uncertain significance ★ ⚠ same type
CDH6 p.Ala671Ser Uncertain significance ★ ⚠ same type
CDH6 p.Ala706Val Uncertain significance ★ ⚠ same type
CDH6 p.Ala729Val Uncertain significance ★ ⚠ same type
CDH6 p.Ala739Val 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/cdh6-p-ile329met (accessed [today's date]).

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