chr16-68801775-G-A

Position:

chr16-68801775-G-A

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 c.269G>A (p.Arg90Gln) missense variant has a frequency of 0.00001989 (5 of 251,334) in the gnomAD v2.1.1 cohort, with a maximum non-founder allele frequency of 0.00004401 (5 of 113,622) in the European non-Finnish subpopulation (http://gnomad.broadinstitute.org). This variant has been observed in ≥10 (55) individuals without DGC, SRC tumours or LBC and whose families do not suggest HDGC (BS2; SCV000567761.3, SCV000254829.7). In summary, the clinical significance of this variant is classified as likely benign based on BS2 alone. 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/CA169145/MONDO:0007648/007

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

CDH1
NM_004360.5 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 0.867

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

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/exons	MANE	Protein
CDH1	NM_004360.5 linkuse as main transcript	c.269G>A	p.Arg90Gln	missense_variant	3/16	ENST00000261769.10	NP_004351.1
CDH1	NM_001317184.2 linkuse as main transcript	c.269G>A	p.Arg90Gln	missense_variant	3/15		NP_001304113.1
CDH1	NM_001317185.2 linkuse as main transcript	c.-1347G>A		5_prime_UTR_variant	3/16		NP_001304114.1
CDH1	NM_001317186.2 linkuse as main transcript	c.-1551G>A		5_prime_UTR_variant	3/15		NP_001304115.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CDH1	ENST00000261769.10 linkuse as main transcript	c.269G>A	p.Arg90Gln	missense_variant	3/16	1	NM_004360.5	ENSP00000261769	P1	P12830-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152150

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

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:

0.0000199

AC:

AN:

251334

Hom.:

AF XY:

0.0000368

AC XY:

AN XY:

135838

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:

0.0000440

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000137

AC:

AN:

1461858

Hom.:

Cov.:

AF XY:

0.0000206

AC XY:

AN XY:

727238

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:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000171

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152150

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74316

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ExAC

AF:

0.0000330

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.0000593

ClinVar

Significance: Likely benign

Submissions summary: Uncertain:5Benign:5

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Hereditary diffuse gastric adenocarcinoma

Uncertain:2Benign:3

Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Dec 29, 2023	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Counsyl	Dec 28, 2016	- -
Benign, criteria provided, single submitter	clinical testing	Mendelics	Aug 22, 2023	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Myriad Genetics, Inc.	Mar 06, 2023	This variant is classified as a variant of uncertain significance as there is insufficient evidence to determine its impact on protein function and/or cancer risk. -
Likely benign, criteria provided, single submitter	clinical testing	European Reference Network on Genetic Tumour Risk Syndromes (ERN-GENTURIS), i3s - Instituto de Investigação e Inovação em Saúde, University of Porto	Aug 01, 2022	BS2 (PMID: 30311375) -

not provided

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Quest Diagnostics Nichols Institute San Juan Capistrano	Dec 30, 2020	- -
Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Jul 06, 2023	Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Observed in individuals with a personal or family history of breast cancer (Guindalini et al., 2022; Garcia-Pelaez et al., 2023); This variant is associated with the following publications: (PMID: 24030381, 25344691, 28229982, 30287823, 32175104, 15235021, 35264596, 36436516) -

Hereditary cancer-predisposing syndrome

Uncertain:1Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Color Diagnostics, LLC DBA Color Health	Apr 03, 2023	This missense variant replaces arginine with glutamine at codon 90 of the CDH1 protein. To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with CDH1-related disorders in the literature. This variant has been identified in 5/251334 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
Likely benign, criteria provided, single submitter	clinical testing	Ambry Genetics	Sep 14, 2018	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. -

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 10, 2023

The c.269G>A (p.Arg90Gln) missense variant has a frequency of 0.00001989 (5 of 251,334) in the gnomAD v2.1.1 cohort, with a maximum non-founder allele frequency of 0.00004401 (5 of 113,622) in the European non-Finnish subpopulation (http://gnomad.broadinstitute.org). This variant has been observed in at least 10 (55) individuals without DGC, SRC tumours or LBC and whose families do not suggest HDGC (BS2; SCV000567761.3, SCV000254829.7). In summary, the clinical significance of this variant is classified as likely benign based on BS2 alone. ACMG/AMP criteria applied, as specified by the CDH1 Variant Curation Expert Panel (Variant Interpretation Guidelines Version 3.1): BS2. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.064

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.47

CADD

Benign

3.8

DANN

Benign

0.62

DEOGEN2

Benign

0.14

T;T;T;.;.

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.0023

LIST_S2

Benign

0.20

T;T;T;T;T

M_CAP

Benign

0.014

MetaRNN

Benign

0.057

T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-1.7

N;.;.;.;N

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.21

PROVEAN

Benign

0.59

N;.;.;.;N

REVEL

Benign

0.084

Sift

Benign

0.93

T;.;.;.;T

Sift4G

Benign

0.96

T;T;T;T;T

Polyphen

0.0

B;.;.;.;.

Vest4

0.13

MutPred

0.63

Loss of MoRF binding (P = 0.0622);Loss of MoRF binding (P = 0.0622);Loss of MoRF binding (P = 0.0622);Loss of MoRF binding (P = 0.0622);Loss of MoRF binding (P = 0.0622);

MVP

0.65

MPC

0.29

ClinPred

0.016

GERP RS

3.2

Varity_R

0.020

gMVP

0.12

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

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