rs115418995

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.371G>A (p.Arg124His) missense variant has a frequency of 0.02010% in Africans (5/24870 alleles) in the gnomAD v2.1.1 cohort. This variant has been observed in ≥10 (31) individuals without DGC, SRC tumours or LBC and whose families do not suggest HDGC (BS2; SCV000637819.6, SCV000184938.6). In summary, the clinical significance of this variant is classified as of likely benign based the 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/CA294161/MONDO:0007648/007

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

CDH1
NM_004360.5 missense

Scores

2
17

Clinical Significance

Likely benign reviewed by expert panel U:10B:4

Conservation

PhyloP100: -0.0740
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]

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 rank MANE Protein UniProt
CDH1NM_004360.5 linkc.371G>A p.Arg124His missense_variant Exon 3 of 16 ENST00000261769.10 NP_004351.1 P12830-1A0A0U2ZQU7B3GN61
CDH1NM_001317184.2 linkc.371G>A p.Arg124His missense_variant Exon 3 of 15 NP_001304113.1 P12830-2B3GN61
CDH1NM_001317185.2 linkc.-1245G>A 5_prime_UTR_variant Exon 3 of 16 NP_001304114.1 P12830B3GN61Q9UII7
CDH1NM_001317186.2 linkc.-1449G>A 5_prime_UTR_variant Exon 3 of 15 NP_001304115.1 P12830B3GN61

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CDH1ENST00000261769.10 linkc.371G>A p.Arg124His missense_variant Exon 3 of 16 1 NM_004360.5 ENSP00000261769.4 P12830-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152104
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000966
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000239
AC:
6
AN:
250586
Hom.:
0
AF XY:
0.0000295
AC XY:
4
AN XY:
135496
show subpopulations
Gnomad AFR exome
AF:
0.000247
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000885
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000137
AC:
20
AN:
1461182
Hom.:
0
Cov.:
32
AF XY:
0.0000138
AC XY:
10
AN XY:
726944
show subpopulations
Gnomad4 AFR exome
AF:
0.000209
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000720
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152222
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74426
show subpopulations
Gnomad4 AFR
AF:
0.0000963
Gnomad4 AMR
AF:
0.00
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
Alfa
AF:
0.0000329
Hom.:
0
Bravo
AF:
0.0000378
ExAC
AF:
0.0000330
AC:
4

ClinVar

Significance: Likely benign
Submissions summary: Uncertain:10Benign:4
Revision: reviewed by expert panel
LINK: link

Submissions by phenotype

Hereditary diffuse gastric adenocarcinoma Uncertain:5
Nov 20, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 124 of the CDH1 protein (p.Arg124His). This variant is present in population databases (rs115418995, gnomAD 0.02%). This missense change has been observed in individual(s) with CDH1-related conditions (PMID: 24493355, 28873162, 36436516). ClinVar contains an entry for this variant (Variation ID: 141538). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Benign". The histidine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. -

Jul 02, 2018
Mendelics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Mar 06, 2023
Myriad Genetics, Inc.
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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. -

Feb 09, 2018
Counsyl
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Aug 01, 2022
European Reference Network on Genetic Tumour Risk Syndromes (ERN-GENTURIS), i3s - Instituto de Investigação e Inovação em Saúde, University of Porto
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

PS4_Supporting (PMID: 30311375) -

not provided Uncertain:3
Dec 24, 2020
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Sep 28, 2023
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 28873162, 15235021, 36436516, 24493355, 36243179) -

Mar 09, 2018
Eurofins Ntd Llc (ga)
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome Benign:2
Feb 16, 2019
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. -

Jun 14, 2017
Color Diagnostics, LLC DBA Color Health
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

CDH1-related disorder Uncertain:1
May 09, 2023
PreventionGenetics, part of Exact Sciences
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The CDH1 c.371G>A variant is predicted to result in the amino acid substitution p.Arg124His. This variant was reported in an individual with diffuse gastric cancer (Molinaro et al. 2014. PubMed ID: 24493355). This variant is reported in 0.020% of alleles in individuals of African descent in gnomAD (http://gnomad.broadinstitute.org/variant/16-68835780-G-A), and is listed in ClinVar with confliciting interpretations of uncertain, likely benign and benign (https://www.ncbi.nlm.nih.gov/clinvar/variation/141538/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Malignant tumor of breast Uncertain:1
-
Department of Pathology and Laboratory Medicine, Sinai Health System
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing

The CDH1 p.Arg124His variant was identified in 1 of 64 proband chromosomes (frequency: 0.016) from individuals or families with diffuse gastric cancer (Molinaro 2014). The variant was also identified in dbSNP (ID: rs115418995) as "With Uncertain significance allele", ClinVar (classified as likely benign by Ambry Genetics and classified as uncertain significance by GeneDx, Invitae, Counsyl, and one other clinical laboratory), and in Zhejiang University Database (1x). The variant was not identified in Cosmic or MutDB databases. The variant was identified in control databases in 6 of 276422 chromosomes at a frequency of 0.00002 (Genome Aggregation Database Feb 27, 2017). The variant was observed in the following populations: African in 4 of 24004 chromosomes (freq: 0.0002), European in 1 of 126036 chromosomes (freq: 0.000008), and East Asian in 1 of 18866 chromosomes (freq: 0.00005), while the variant was not observed in the Other, Latino, Ashkenazi Jewish, Finnish, or South Asian populations. The p.Arg124 residue is not conserved in mammals and computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) do not suggest a high likelihood of impact to the protein; however, this information is not predictive enough to rule out pathogenicity. The variant occurs outside of the splicing consensus sequence and in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) do not predict a difference in splicing. In addition, single-nucleotide primer extension and RT-PCR assays did not detect allelic imbalance or aberrant splicing (Molinaro 2014). In summary, based on the above information, the clinical significance of this variant cannot be determined with certainty at this time. This variant is classified as a variant of uncertain significance. -

Ovarian cancer Benign:1
Jan 01, 2022
Laboratory of Molecular Epidemiology of Birth Defects, West China Second University Hospital, Sichuan University
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

CDH1-related diffuse gastric and lobular breast cancer syndrome Benign:1
Aug 10, 2023
ClinGen CDH1 Variant Curation Expert Panel
Significance: Likely benign
Review Status: reviewed by expert panel
Collection Method: curation

The c.371G>A (p.Arg124His) missense variant has a frequency of 0.02010% in Africans (5/24870 alleles) in the gnomAD v2.1.1 cohort. This variant has been observed in at least 10 (31) individuals without DGC, SRC tumours or LBC and whose families do not suggest HDGC (BS2; SCV000637819.6, SCV000184938.6). In summary, the clinical significance of this variant is classified as of likely benign based the 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
0.058
BayesDel_addAF
Benign
-0.42
T
BayesDel_noAF
Benign
-0.56
CADD
Benign
1.5
DANN
Benign
0.81
DEOGEN2
Benign
0.25
T;T;T;.;.
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.00045
N
LIST_S2
Benign
0.65
T;T;T;T;T
M_CAP
Pathogenic
0.68
D
MetaRNN
Benign
0.29
T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-0.27
N;.;.;.;N
PrimateAI
Benign
0.19
T
PROVEAN
Benign
0.77
N;.;.;.;N
REVEL
Pathogenic
0.65
Sift
Benign
0.42
T;.;.;.;T
Sift4G
Benign
0.35
T;T;T;T;T
Polyphen
0.0
B;.;.;.;.
Vest4
0.26
MVP
0.58
MPC
0.31
ClinPred
0.012
T
GERP RS
-0.54
Varity_R
0.012
gMVP
0.15

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.

Other links and lift over

dbSNP: rs115418995; hg19: chr16-68835780; COSMIC: COSV99932488; API