rs780375749

Positions:

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 1P and 5B. BP4BS2PM2_Supporting

This summary comes from the ClinGen Evidence Repository: The c.164-4G>A (NM_004360.5) variant in CDH1 occurs in the splice donor region of intron 2. This variant has been observed in more than 10 individuals without GC, DGC, SRC tumours or LBC and whose families do not suggest HDGC (BS2; Ambry, GeneDx, Invitae). This variant occurs in one in 251,376 alleles in gnomAD 2.1.1 (less than one out of 100,000), within the European Non-Finnish population (one in 113,662 alleles) PM2_Supporting. In silico splice site predictors suggest that this variant does not impact splicing (BP4). However, splicing has not been assessed by in vitro assays. In summary, this variant meets the criteria to be classified as likely benign for DGLBCS based on the ACMG/AMP criteria applied, as specified by the ClinGen CDH1 VCEP: PM2_Supporting, BS2, BP4. (CDH1 VCEP specifications version 3.1; 04/24/2023) LINK:https://erepo.genome.network/evrepo/ui/classification/CA192317/MONDO:0100488/007

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

CDH1
NM_004360.5 splice_region, intron

Scores

Splicing: ADA: 0.0001260

Clinical Significance

Likely benign reviewed by expert panel B:5

Conservation

PhyloP100: -0.305

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 links:

CDH1 (HGNC:):

CDH1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2

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

BP4

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

BS2

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	MANE	Protein	UniProt
CDH1	NM_004360.5 linkuse as main transcript	c.164-4G>A	splice_region_variant, intron_variant	ENST00000261769.10	NP_004351.1	P12830-1A0A0U2ZQU7B3GN61
CDH1	NM_001317184.2 linkuse as main transcript	c.164-4G>A	splice_region_variant, intron_variant		NP_001304113.1	P12830-2B3GN61
CDH1	NM_001317185.2 linkuse as main transcript	c.-1452-4G>A	splice_region_variant, intron_variant		NP_001304114.1	P12830B3GN61Q9UII7
CDH1	NM_001317186.2 linkuse as main transcript	c.-1656-4G>A	splice_region_variant, intron_variant		NP_001304115.1	P12830B3GN61

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CDH1	ENST00000261769.10 linkuse as main transcript	c.164-4G>A		splice_region_variant, intron_variant		1	NM_004360.5	ENSP00000261769.4		P12830-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251376

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135860

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.86e-7

AC:

AN:

1458060

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

725622

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.02e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.000111

Hom.:

ClinVar

Significance: Likely benign

Submissions summary: Benign:5

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Hereditary diffuse gastric adenocarcinoma

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	May 13, 2023	- -
Likely benign, criteria provided, single submitter	clinical testing	Myriad Genetics, Inc.	Sep 12, 2024	This variant is considered likely benign. This variant is intronic and is not expected to impact mRNA splicing. -

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Jan 05, 2018

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

CDH1-related diffuse gastric and lobular breast cancer syndrome

Benign:1

Likely benign, reviewed by expert panel

curation

ClinGen CDH1 Variant Curation Expert Panel

Aug 02, 2023

The c.164-4G>A (NM_004360.5) variant in CDH1 occurs in the splice donor region of intron 2. This variant has been observed in more than 10 individuals without GC, DGC, SRC tumours or LBC and whose families do not suggest HDGC (BS2; Ambry, GeneDx, Invitae). This variant occurs in one in 251,376 alleles in gnomAD 2.1.1 (less than one out of 100,000), within the European Non-Finnish population (one in 113,662 alleles) PM2_Supporting. In silico splice site predictors suggest that this variant does not impact splicing (BP4). However, splicing has not been assessed by in vitro assays. In summary, this variant meets the criteria to be classified as likely benign for DGLBCS based on the ACMG/AMP criteria applied, as specified by the ClinGen CDH1 VCEP: PM2_Supporting, BS2, BP4. (CDH1 VCEP specifications version 3.1; 04/24/2023) -

Hereditary cancer-predisposing syndrome

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 19, 2024

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.68

CADD

Benign

6.0

DANN

Benign

0.73

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00013

dbscSNV1_RF

Benign

0.0020

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over