rs1205684749

Variant names:

• chr16-68738413-T-TGAG
• rs1205684749
• NM_004360.5:c.163+4_163+6dupAGG

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

This summary comes from the ClinGen Evidence Repository: The CDH1 c.163+4_163+6dupAGG variant occurs in the splice donor region of intron 2. This allele is present at a frequency of 0.00001338 (2 in 149,510 alleles) in the gnomAD database (GRCh37) (http://gnomad.broadinstitute.org). This variant has been observed in more than ten individuals without DGC, SRC tumours or LBC and whose families do not suggest HDGC (BS2; SCV000969083.1, SCV000216473.4, SCV000637738.2). In summary, this variant is classified as likely benign based on ACMG/AMP criteria applied as specified by the CDH1 Variant Curation Expert Panel (Variant Interpretation Guidelines Version 3.1): BS2. LINK:https://erepo.genome.network/evrepo/ui/classification/CA194099/MONDO:0007648/007

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000051 (0 hom.)
• Consequence: CDH1 NM_004360.5 splice_region, intron
• Clinical Significance: Likely benign reviewed by expert panel B:8
• Conservation: PhyloP100: 0.592

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]

ACMG classification

Verdict is Likely_benign. Variant got -4 ACMG points.

• BS2: For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CDH1	NM_004360.5	c.163+4_163+6dupAGG		splice_region_variant, intron_variant	Intron 2 of 15	ENST00000261769.10	NP_004351.1
CDH1	NM_001317184.2	c.163+4_163+6dupAGG		splice_region_variant, intron_variant	Intron 2 of 14		NP_001304113.1
CDH1	NM_001317185.2	c.-1453+4_-1453+6dupAGG		splice_region_variant, intron_variant	Intron 2 of 15		NP_001304114.1
CDH1	NM_001317186.2	c.-1657+4_-1657+6dupAGG		splice_region_variant, intron_variant	Intron 2 of 14		NP_001304115.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CDH1	ENST00000261769.10	c.163+2_163+3insGAG		splice_region_variant, intron_variant	Intron 2 of 15	1	NM_004360.5	ENSP00000261769.4
CDH1	ENST00000422392.6	c.163+2_163+3insGAG		splice_region_variant, intron_variant	Intron 2 of 14	1		ENSP00000414946.2
CDH1	ENST00000566612.5	n.163+2_163+3insGAG		splice_region_variant, intron_variant	Intron 2 of 14	1		ENSP00000454782.1
CDH1	ENST00000566510.5	n.163+2_163+3insGAG		splice_region_variant, intron_variant	Intron 2 of 14	5		ENSP00000458139.1

Frequencies

GnomAD3 genomes AF: 0.00000659 AC: 1 AN: 151804 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000194

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000134 AC: 2 AN: 149510 Hom.: 0 AF XY: 0.0000126 AC XY: 1 AN XY: 79410

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000936

Gnomad SAS exome AF: 0.0000451

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000506 AC: 7 AN: 1384118 Hom.: 0 Cov.: 28 AF XY: 0.00000440 AC XY: 3 AN XY: 681940

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: 0.0000509

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.0000523

GnomAD4 genome AF: 0.00000658 AC: 1 AN: 151922 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74282

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000194

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

ClinVar

Significance: Likely benign

Submissions summary: Benign:8

Revision: reviewed by expert panel

Submissions by phenotype

Hereditary diffuse gastric adenocarcinoma Benign:3

Jul 22, 2016

Counsyl

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Nov 03, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Mar 03, 2023

Myriad Genetics, Inc.

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign. This variant is intronic and is not expected to impact mRNA splicing. -

not provided Benign:2

May 05, 2021

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jun 06, 2023

Quest Diagnostics Nichols Institute San Juan Capistrano

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not specified Benign:1

Mar 04, 2025

Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

CDH1-related diffuse gastric and lobular breast cancer syndrome Benign:1

Aug 17, 2023

ClinGen CDH1 Variant Curation Expert Panel

Significance: Likely benign

Review Status: reviewed by expert panel

Collection Method: curation

The CDH1 c.163+4_163+6dupAGG variant occurs in the splice donor region of intron 2. This allele is present at a frequency of 0.00001338 (2 in 149,510 alleles) in the gnomAD database (GRCh37) (http://gnomad.broadinstitute.org). This variant has been observed in more than ten individuals without DGC, SRC tumours or LBC and whose families do not suggest HDGC (BS2; SCV000969083.1, SCV000216473.4, SCV000637738.2). In summary, this variant is classified as likely benign based on ACMG/AMP criteria applied as specified by the CDH1 Variant Curation Expert Panel (Variant Interpretation Guidelines Version 3.1): BS2. -

Hereditary cancer-predisposing syndrome Benign:1

Nov 03, 2023

Ambry Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs1205684749; hg19: chr16-68772316;