rs1555518270

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2_SupportingPVS1_Moderate

This summary comes from the ClinGen Evidence Repository: The c.2594G>A p.(Trp865Ter) variant is predicted to result in a premature stop codon that leads to a truncated protein. However, it is located within the nonsense mediated decay resistance region and is downstream of the most 3' pathogenic variant, c.2506G>T p.(Glu836Ter), PVS1_Moderate. This variant is absent in the gnomAD cohort (PM2_Supporting; http://gnomad.broadinstitute.org). In summary, the clinical significance of this variant is uncertain. ACMG/AMP criteria applied, as specified by the CDH1 Variant Curation Expert Panel (CDH1 VCEP specifications version 3.1): PVS1_Moderate, PM2_Supporting. LINK:https://erepo.genome.network/evrepo/ui/classification/CA396472624/MONDO:0007648/007

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CDH1
NM_004360.5 stop_gained

Scores

5
1
1

Clinical Significance

Uncertain significance reviewed by expert panel U:4

Conservation

PhyloP100: 9.94

Publications

2 publications found
Variant links:
Genes affected
CDH1 (HGNC:1748): (cadherin 1) This gene encodes a classical cadherin of the cadherin superfamily. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed to generate the mature glycoprotein. This calcium-dependent cell-cell adhesion protein is comprised of five extracellular cadherin repeats, a transmembrane region and a highly conserved cytoplasmic tail. Mutations in this gene are correlated with gastric, breast, colorectal, thyroid and ovarian cancer. Loss of function of this gene is thought to contribute to cancer progression by increasing proliferation, invasion, and/or metastasis. The ectodomain of this protein mediates bacterial adhesion to mammalian cells and the cytoplasmic domain is required for internalization. This gene is present in a gene cluster with other members of the cadherin family on chromosome 16. [provided by RefSeq, Nov 2015]
CDH1 Gene-Disease associations (from GenCC):
  • blepharocheilodontic syndrome 1
    Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, Illumina, Labcorp Genetics (formerly Invitae), G2P
  • CDH1-related diffuse gastric and lobular breast cancer syndrome
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, G2P
  • hereditary breast carcinoma
    Inheritance: AD Classification: DEFINITIVE Submitted by: Ambry Genetics
  • hereditary diffuse gastric adenocarcinoma
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet
  • cleft soft palate
    Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
  • orofacial cleft 3
    Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
  • blepharocheilodontic syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • familial ovarian cancer
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PVS1
For more information check the summary or visit ClinGen Evidence Repository.
PM2
For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CDH1NM_004360.5 linkc.2594G>A p.Trp865* stop_gained Exon 16 of 16 ENST00000261769.10 NP_004351.1 P12830-1A0A0U2ZQU7B3GN61
CDH1NM_001317184.2 linkc.2411G>A p.Trp804* stop_gained Exon 15 of 15 NP_001304113.1 P12830-2B3GN61
CDH1NM_001317185.2 linkc.1046G>A p.Trp349* stop_gained Exon 16 of 16 NP_001304114.1 P12830B3GN61Q9UII7
CDH1NM_001317186.2 linkc.629G>A p.Trp210* stop_gained Exon 15 of 15 NP_001304115.1 P12830B3GN61

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CDH1ENST00000261769.10 linkc.2594G>A p.Trp865* stop_gained Exon 16 of 16 1 NM_004360.5 ENSP00000261769.4 P12830-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251474
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461876
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727236
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1112004
Other (OTH)
AF:
0.00
AC:
0
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:4
Revision: reviewed by expert panel
LINK: link

Submissions by phenotype

Hereditary diffuse gastric adenocarcinoma Uncertain:2
Nov 14, 2017
Counsyl
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -

Jul 25, 2021
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change results in a premature translational stop signal in the CDH1 gene (p.Trp865*). While this is not anticipated to result in nonsense mediated decay, it is expected to disrupt the last 18 amino acids of the CDH1 protein. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with CDH1-related conditions. ClinVar contains an entry for this variant (Variation ID: 496819). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site, but this prediction has not been confirmed by published transcriptional studies. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

CDH1-related diffuse gastric and lobular breast cancer syndrome Uncertain:1
Aug 04, 2023
ClinGen CDH1 Variant Curation Expert Panel
Significance:Uncertain significance
Review Status:reviewed by expert panel
Collection Method:curation

The c.2594G>A p.(Trp865Ter) variant is predicted to result in a premature stop codon that leads to a truncated protein. However, it is located within the nonsense mediated decay resistance region and is downstream of the most 3' pathogenic variant, c.2506G>T p.(Glu836Ter), PVS1_Moderate. This variant is absent in the gnomAD cohort (PM2_Supporting; http://gnomad.broadinstitute.org). In summary, the clinical significance of this variant is uncertain. ACMG/AMP criteria applied, as specified by the CDH1 Variant Curation Expert Panel (CDH1 VCEP specifications version 3.1): PVS1_Moderate, PM2_Supporting. -

Hereditary cancer-predisposing syndrome Uncertain:1
Oct 28, 2021
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.W865* variant (also known as c.2594G>A), located in coding exon 16 of the CDH1 gene, results from a G to A substitution at nucleotide position 2594. This changes the amino acid from a tryptophan to a stop codon within coding exon 16. This alteration occurs at the 3' terminus of theCDH1 gene, is not expected to trigger nonsense-mediated mRNAdecay, and only impacts the last 2%, 18 amino acids, of the protein. The exact functional effect of this alteration is unknown. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.62
D
BayesDel_noAF
Pathogenic
0.66
CADD
Pathogenic
44
DANN
Uncertain
0.99
Eigen
Pathogenic
1.1
Eigen_PC
Pathogenic
1.0
FATHMM_MKL
Pathogenic
0.99
D
PhyloP100
9.9
Vest4
0.76
GERP RS
6.2
Mutation Taster
=8/192
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs1555518270; hg19: chr16-68867347; API