16-68738289-C-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BS2BP4

This summary comes from the ClinGen Evidence Repository: The c.49-8C>T is an intronic variant in the splice acceptor region of intron 1. This variant has an allele frequency of 0.00001 (2/150178) in gnomAD with a maximum frequency of 0.00003 (2/57282) in the European (Non-Finnish) sub-population. This variant has been reported in at least 12 individuals without DGC, SRC tumours or LBC and whose families do not suggest HDGC (BS2; SCV000529519.4, SCV000557406.3). This variant is predicted to have no impact on splicing by multiple in silico splice site predictors. HumanSpliceFinder predicts that this variant may create an exonic ESS site, but this effect has not been demonstrated experimentally to our knowledge (BP4). In summary, this variant meets criteria to be 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, BP4. LINK:https://erepo.genome.network/evrepo/ui/classification/CA16608223/MONDO:0007648/007

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

CDH1
NM_004360.5 splice_region, intron

Scores

Splicing: ADA: 0.00008907

Clinical Significance

Likely benign reviewed by expert panel U:1B:5

Conservation

PhyloP100: -0.714

Publications

0 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

CDH1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

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	Exon rank	MANE	Protein	UniProt
CDH1	NM_004360.5 link	c.49-8C>T	splice_region_variant, intron_variant	Intron 1 of 15	ENST00000261769.10	NP_004351.1	P12830-1A0A0U2ZQU7B3GN61
CDH1	NM_001317184.2 link	c.49-8C>T	splice_region_variant, intron_variant	Intron 1 of 14		NP_001304113.1	P12830-2B3GN61
CDH1	NM_001317185.2 link	c.-1567-8C>T	splice_region_variant, intron_variant	Intron 1 of 15		NP_001304114.1	P12830B3GN61Q9UII7
CDH1	NM_001317186.2 link	c.-1771-8C>T	splice_region_variant, intron_variant	Intron 1 of 14		NP_001304115.1	P12830B3GN61

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein	UniProt
CDH1	ENST00000261769.10 link	c.49-8C>T	splice_region_variant, intron_variant	Intron 1 of 15	1	NM_004360.5	ENSP00000261769.4	P12830-1
CDH1	ENST00000422392.6 link	c.49-8C>T	splice_region_variant, intron_variant	Intron 1 of 14	1		ENSP00000414946.2	P12830-2
CDH1	ENST00000566612.5 link	n.49-8C>T	splice_region_variant, intron_variant	Intron 1 of 14	1		ENSP00000454782.1	H3BNC6
CDH1	ENST00000566510.5 link	n.49-8C>T	splice_region_variant, intron_variant	Intron 1 of 14	5		ENSP00000458139.1	H3BVI7

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000128

AC:

AN:

156612

AF XY:

0.0000242

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:

0.0000332

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000261

AC:

AN:

1380112

Hom.:

Cov.:

AF XY:

0.0000264

AC XY:

AN XY:

682008

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31196

American (AMR)

AF:

0.00

AC:

AN:

35650

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25046

East Asian (EAS)

AF:

0.00

AC:

AN:

35704

South Asian (SAS)

AF:

0.00

AC:

AN:

78724

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49214

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5670

European-Non Finnish (NFE)

AF:

0.0000339

AC:

AN:

1061580

Other (OTH)

AF:

0.00

AC:

AN:

57328

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.514

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Likely benign

Submissions summary: Uncertain:1Benign:5

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Hereditary diffuse gastric adenocarcinoma

Benign:2

Oct 23, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Sep 11, 2024

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 specified

Uncertain:1

Nov 28, 2016

Quest Diagnostics Nichols Institute San Juan Capistrano

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:1

Jun 03, 2020

GeneDx

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 c.49-8C>T is an intronic variant in the splice acceptor region of intron 1. This variant has an allele frequency of 0.00001 (2/150178) in gnomAD with a maximum frequency of 0.00003 (2/57282) in the European (Non-Finnish) sub-population. This variant has been reported in at least 12 individuals without DGC, SRC tumours or LBC and whose families do not suggest HDGC (BS2; SCV000529519.4, SCV000557406.3). This variant is predicted to have no impact on splicing by multiple in silico splice site predictors. HumanSpliceFinder predicts that this variant may create an exonic ESS site, but this effect has not been demonstrated experimentally to our knowledge (BP4). In summary, this variant meets criteria to be 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, BP4. -

Hereditary cancer-predisposing syndrome

Benign:1

Mar 20, 2018

Color Diagnostics, LLC DBA Color Health

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.76

CADD

Benign

6.2

(source)

DANN

Benign

0.93

PhyloP100

-0.71

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000089

dbscSNV1_RF

Benign

0.0

SpliceAI score (max)

0.090

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over