rs1255556757

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_004360.5(CDH1):​c.865G>A​(p.Ala289Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000958 in 1,461,874 control chromosomes in the GnomAD database, with no homozygous occurrence. 13/22 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. A289V) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

CDH1
NM_004360.5 missense

Scores

6
13

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:1

Conservation

PhyloP100: 1.27

Publications

5 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 -4 ACMG points.

BS2
High AC in GnomAdExome4 at 14 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CDH1NM_004360.5 linkc.865G>A p.Ala289Thr missense_variant Exon 7 of 16 ENST00000261769.10 NP_004351.1 P12830-1A0A0U2ZQU7B3GN61
CDH1NM_001317184.2 linkc.865G>A p.Ala289Thr missense_variant Exon 7 of 15 NP_001304113.1 P12830-2B3GN61
CDH1NM_001317185.2 linkc.-751G>A 5_prime_UTR_variant Exon 7 of 16 NP_001304114.1 P12830B3GN61Q9UII7
CDH1NM_001317186.2 linkc.-955G>A 5_prime_UTR_variant Exon 7 of 15 NP_001304115.1 P12830B3GN61

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CDH1ENST00000261769.10 linkc.865G>A p.Ala289Thr missense_variant Exon 7 of 16 1 NM_004360.5 ENSP00000261769.4 P12830-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251464
AF XY:
0.00000736
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:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000958
AC:
14
AN:
1461874
Hom.:
0
Cov.:
32
AF XY:
0.0000124
AC XY:
9
AN XY:
727240
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
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:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53408
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000117
AC:
13
AN:
1112006
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
1
2
4
5
6
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.:
32

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:5Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:2
May 10, 2023
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Observed in a breast cancer case-control study, but it's not clear whether the variant was identified in case(s) or control(s) (Adedokun et al., 2020); This variant is associated with the following publications: (PMID: 15235021, 22850631, 31871109) -

Nov 20, 2017
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Hereditary cancer-predisposing syndrome Uncertain:1Benign:1
Dec 18, 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. -

Feb 07, 2023
Color Diagnostics, LLC DBA Color Health
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This missense variant replaces alanine with threonine at codon 289 of the CDH1 protein. To our knowledge, functional studies have not been reported for this variant. This variant has been reported in an individual affected with breast cancer in the literature (PMID: 31871109). This variant has been identified in 1/251464 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. -

Hereditary diffuse gastric adenocarcinoma Uncertain:1
Jul 08, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 289 of the CDH1 protein (p.Ala289Thr). This variant is present in population databases (no rsID available, gnomAD 0.0009%). This missense change has been observed in individual(s) with breast cancer and pancreatic cancer (PMID: 31871109, 35171259). ClinVar contains an entry for this variant (Variation ID: 532469). 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 disruptive. 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. -

Familial cancer of breast Uncertain:1
Jul 14, 2023
Baylor Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.033
T
BayesDel_noAF
Benign
-0.29
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.54
D;T;T;.;.
Eigen
Benign
-0.097
Eigen_PC
Benign
-0.21
FATHMM_MKL
Benign
0.19
N
LIST_S2
Benign
0.66
T;T;T;T;T
M_CAP
Benign
0.035
D
MetaRNN
Uncertain
0.60
D;D;D;D;D
MetaSVM
Benign
-0.82
T
MutationAssessor
Uncertain
2.5
M;.;.;.;M
PhyloP100
1.3
PrimateAI
Benign
0.37
T
PROVEAN
Uncertain
-2.5
N;.;.;.;N
REVEL
Benign
0.24
Sift
Uncertain
0.023
D;.;.;.;T
Sift4G
Benign
0.061
T;T;T;T;T
Polyphen
0.96
D;.;.;.;.
Vest4
0.54
MutPred
0.65
Gain of phosphorylation at A289 (P = 0.0392);Gain of phosphorylation at A289 (P = 0.0392);Gain of phosphorylation at A289 (P = 0.0392);Gain of phosphorylation at A289 (P = 0.0392);Gain of phosphorylation at A289 (P = 0.0392);
MVP
0.81
MPC
0.63
ClinPred
0.93
D
GERP RS
2.9
Varity_R
0.37
gMVP
0.57
Mutation Taster
=85/15
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: rs1255556757; hg19: chr16-68845619; COSMIC: COSV55727454; COSMIC: COSV55727454; API