rs587778171

Variant summary

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

This summary comes from the ClinGen Evidence Repository: The c.113C>A (p.Thr38Lys) variant results in a non-synonymous amino acid substitution in exon 2 of CDH1. This variant has been observed in at least 10 individuals without DGC, LBC or SRC tumors and whose families do not suggest HDGC (BS2; SCV000637699.3, SCV000275215.5). In summary, this variant meets criteria to be classified as 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/CA8129795/MONDO:0007648/007

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000086 ( 0 hom. )

Consequence

CDH1
NM_004360.5 missense

Scores

2
17

Clinical Significance

Likely benign reviewed by expert panel U:3B:1

Conservation

PhyloP100: 0.288

Publications

3 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
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.113C>A p.Thr38Lys missense_variant Exon 2 of 16 ENST00000261769.10 NP_004351.1 P12830-1A0A0U2ZQU7B3GN61
CDH1NM_001317184.2 linkc.113C>A p.Thr38Lys missense_variant Exon 2 of 15 NP_001304113.1 P12830-2B3GN61
CDH1NM_001317185.2 linkc.-1503C>A 5_prime_UTR_variant Exon 2 of 16 NP_001304114.1 P12830B3GN61Q9UII7
CDH1NM_001317186.2 linkc.-1707C>A 5_prime_UTR_variant Exon 2 of 15 NP_001304115.1 P12830B3GN61

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CDH1ENST00000261769.10 linkc.113C>A p.Thr38Lys missense_variant Exon 2 of 16 1 NM_004360.5 ENSP00000261769.4 P12830-1
CDH1ENST00000422392.6 linkc.113C>A p.Thr38Lys missense_variant Exon 2 of 15 1 ENSP00000414946.2 P12830-2
CDH1ENST00000566612.5 linkn.113C>A non_coding_transcript_exon_variant Exon 2 of 15 1 ENSP00000454782.1 H3BNC6
CDH1ENST00000566510.5 linkn.113C>A non_coding_transcript_exon_variant Exon 2 of 15 5 ENSP00000458139.1 H3BVI7

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152224
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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
GnomAD2 exomes
AF:
0.0000191
AC:
3
AN:
156704
AF XY:
0.0000242
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000406
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000858
AC:
12
AN:
1398866
Hom.:
0
Cov.:
31
AF XY:
0.00000870
AC XY:
6
AN XY:
689938
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31586
American (AMR)
AF:
0.0000280
AC:
1
AN:
35686
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25158
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35768
South Asian (SAS)
AF:
0.000126
AC:
10
AN:
79184
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49052
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5696
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1078750
Other (OTH)
AF:
0.0000172
AC:
1
AN:
57986
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.517
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
AF:
0.00000657
AC:
1
AN:
152224
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74380
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
41458
American (AMR)
AF:
0.0000654
AC:
1
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68024
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.325
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

Genome 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
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000243
AC:
1

ClinVar

Significance: Likely benign
Submissions summary: Uncertain:3Benign:1
Revision: reviewed by expert panel
LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome Uncertain:2
Apr 03, 2025
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.T38K variant (also known as c.113C>A), located in coding exon 2 of the CDH1 gene, results from a C to A substitution at nucleotide position 113. The threonine at codon 38 is replaced by lysine, an amino acid with similar properties. This amino acid position is well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Feb 16, 2023
Color Diagnostics, LLC DBA Color Health
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This missense variant replaces threonine with lysine at codon 38 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 3/156704 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
Jun 11, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces threonine, which is neutral and polar, with lysine, which is basic and polar, at codon 38 of the CDH1 protein (p.Thr38Lys). This variant is present in population databases (rs587778171, gnomAD 0.009%). 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: 231383). 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. -

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.113C>A (p.Thr38Lys) variant results in a non-synonymous amino acid substitution in exon 2 of CDH1. This variant has been observed in at least 10 individuals without DGC, LBC or SRC tumors and whose families do not suggest HDGC (BS2; SCV000637699.3, SCV000275215.5). In summary, this variant meets criteria to be classified as 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
0.14
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
16
DANN
Benign
0.96
DEOGEN2
Benign
0.27
T;T;T;.;.
Eigen
Benign
0.019
Eigen_PC
Benign
-0.088
FATHMM_MKL
Benign
0.52
D
LIST_S2
Benign
0.79
T;T;T;T;T
M_CAP
Benign
0.028
D
MetaRNN
Uncertain
0.60
D;D;D;D;D
MetaSVM
Benign
-0.95
T
MutationAssessor
Benign
1.9
M;.;.;.;M
PhyloP100
0.29
PrimateAI
Benign
0.48
T
PROVEAN
Benign
-2.3
N;.;.;.;N
REVEL
Benign
0.22
Sift
Uncertain
0.0080
D;.;.;.;D
Sift4G
Benign
0.066
T;D;T;D;T
Polyphen
0.90
P;.;.;.;.
Vest4
0.68
MutPred
0.64
Gain of ubiquitination at T38 (P = 0.0238);Gain of ubiquitination at T38 (P = 0.0238);Gain of ubiquitination at T38 (P = 0.0238);Gain of ubiquitination at T38 (P = 0.0238);Gain of ubiquitination at T38 (P = 0.0238);
MVP
0.83
MPC
0.44
ClinPred
0.31
T
GERP RS
1.6
Varity_R
0.34
gMVP
0.47
Mutation Taster
=83/17
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs587778171; hg19: chr16-68772264; API