Is CDH1 p.Asn591= (c.1773C>T) pathogenic?

CDH1 p.Asn591= (c.1773C>T) is classified Conflicting classifications of pathogenicity in CDH1 (ClinVar, Conflicting submitters, 12 submitters; last evaluated 2026-01-27). Ultra-rare (popmax 0.0495%, mid); Associated with hereditary neoplastic syndrome.

What condition is associated with CDH1 p.Asn591= (c.1773C>T)?

CDH1 p.Asn591= (c.1773C>T) is associated with hereditary neoplastic syndrome, hereditary diffuse gastric adenocarcinoma, prostate cancer (ClinVar).

How common is CDH1 p.Asn591= (c.1773C>T) in the general population?

CDH1 p.Asn591= (c.1773C>T) is ultra-rare (popmax 0.0495%, mid) (gnomAD).

CDH1 p.Asn591=

c.1773C>T · rs373719554 · VCV230081

Conflicting classifications of pathogenicity Conflicting submitters

Classification

Conflicting classifications of pathogenicity

ClinVar

Review

Conflicting submitters ★☆☆☆

ClinVar · 12 submitters

gnomAD v4.1

Rare

ultra-rare (popmax 0.0495%, mid)

Conditions

hereditary neoplastic syndrome

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP -9.5	GERP -3.9
Overall
CADD	0.369	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0495% Middle Eastern · 3/6,062 alleles

Filtering AF 0.0134% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00718%

Overall 0.00279% 45/1,614,188 alleles · ultra-rare

Ancestry group	Frequency	1 in
Middle Easterngrpmax	0.0495%	2,021
African / African-American	0.00933%	10,719
South Asian	0.00659%	15,180
Remaining individualsnot grpmax-eligible	0.0032%	31,255
East Asian	0.00223%	44,886
European (non-Finnish)	0.0022%	45,385

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: CDH1
Protein: p.Asn591=
Coding: c.1773C>T
MANE Select: NM_004360
dbSNP: rs373719554
Type: single nucleotide variant
Location: chr16:68822062 (GRCh38)
Gene constraint: LOEUF 0.514 · pLI 0.86 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 79.13 · 22 PDB
Residue 591: the cadherin 4 domain

Full CDH1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

hereditary neoplastic syndrome — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: hereditary diffuse gastric adenocarcinoma prostate cancer

Similar variants

CDH1 p.Asn591Asp Uncertain significance ★★ ⚠ same residue
CDH1 p.Asn591His Uncertain significance ★★ ⚠ same residue
CDH1 p.Asn591Ser Uncertain significance ★★ ⚠ same residue
CDH1 p.Asn591Lys Uncertain significance ★ ⚠ same residue
CDH1 c.1008+2T>C Likely pathogenic ★★★ same condition
CDH1 c.1137+1G>A Pathogenic ★★★ same condition
CDH1 c.1137+2T>C Likely pathogenic ★★★ same condition
CDH1 c.1320+1G>C Likely pathogenic ★★★ 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/cdh1-p-asn591 (accessed [today's date]).

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