rs769844369

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP6

The NM_004360.5(CDH1):​c.1978G>A​(p.Val660Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,808 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V660A) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CDH1
NM_004360.5 missense

Scores

19

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: -1.38

Publications

4 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.07168698).
BP6
Variant 16-68823440-G-A is Benign according to our data. Variant chr16-68823440-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 463739.We mark this variant Likely_benign, oryginal submission is: [Conflicting_classifications_of_pathogenicity].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CDH1NM_004360.5 linkc.1978G>A p.Val660Met missense_variant Exon 13 of 16 ENST00000261769.10 NP_004351.1 P12830-1A0A0U2ZQU7B3GN61
CDH1NM_001317184.2 linkc.1795G>A p.Val599Met missense_variant Exon 12 of 15 NP_001304113.1 P12830-2B3GN61
CDH1NM_001317185.2 linkc.430G>A p.Val144Met missense_variant Exon 13 of 16 NP_001304114.1 P12830B3GN61Q9UII7
CDH1NM_001317186.2 linkc.13G>A p.Val5Met missense_variant Exon 12 of 15 NP_001304115.1 P12830B3GN61

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CDH1ENST00000261769.10 linkc.1978G>A p.Val660Met missense_variant Exon 13 of 16 1 NM_004360.5 ENSP00000261769.4 P12830-1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251464
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461808
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727210
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53412
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111942
Other (OTH)
AF:
0.00
AC:
0
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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.:
31
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Hereditary diffuse gastric adenocarcinoma Uncertain:2
Sep 17, 2024
Molecular Pathology, Peter Maccallum Cancer Centre
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Sep 27, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces valine, which is neutral and non-polar, with methionine, which is neutral and non-polar, at codon 660 of the CDH1 protein (p.Val660Met). This variant is present in population databases (rs769844369, gnomAD 0.006%). This variant has not been reported in the literature in individuals affected with CDH1-related conditions. ClinVar contains an entry for this variant (Variation ID: 463739). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. 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. -

Hereditary cancer-predisposing syndrome Benign:1
Sep 17, 2022
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

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.41
T
BayesDel_noAF
Benign
-0.66
CADD
Benign
0.33
DANN
Benign
0.55
DEOGEN2
Benign
0.17
T;T;.
Eigen
Benign
-1.7
Eigen_PC
Benign
-2.0
FATHMM_MKL
Benign
0.018
N
LIST_S2
Benign
0.59
T;T;T
M_CAP
Benign
0.020
T
MetaRNN
Benign
0.072
T;T;T
MetaSVM
Benign
-0.85
T
MutationAssessor
Benign
1.8
L;.;.
PhyloP100
-1.4
PrimateAI
Benign
0.31
T
PROVEAN
Benign
-0.040
N;.;N
REVEL
Benign
0.072
Sift
Benign
0.092
T;.;T
Sift4G
Benign
0.26
T;T;T
Polyphen
0.64
P;.;.
Vest4
0.11
MutPred
0.40
Gain of ubiquitination at K664 (P = 0.0737);.;.;
MVP
0.47
MPC
0.46
ClinPred
0.38
T
GERP RS
-12
Varity_R
0.064
gMVP
0.31
Mutation Taster
=92/8
polymorphism

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

Other links and lift over

dbSNP: rs769844369; hg19: chr16-68857343; API