16-68737444-CGCTGCTGCT-CGCTGCT

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP3BP6

The NM_004360.5(CDH1):c.44_46delTGC(p.Leu15del) variant causes a disruptive inframe deletion, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000494 in 1,315,328 control chromosomes in the GnomAD database, with no homozygous occurrence. There is a variant allele frequency bias in the population database for this variant (GnomAdExome4), which may indicate mosaicism or somatic mutations in the reference population data. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. L15L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000049 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

CDH1
NM_004360.5 disruptive_inframe_deletion, splice_region

Scores

Not classified

Clinical Significance

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

Conservation

PhyloP100: 1.93

Publications

2 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

CDH1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP3

Nonframeshift variant in repetitive region in NM_004360.5

BP6

Variant 16-68737444-CGCT-C is Benign according to our data. Variant chr16-68737444-CGCT-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 803264.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CDH1	NM_004360.5 link	c.44_46delTGC	p.Leu15del	disruptive_inframe_deletion, splice_region_variant	Exon 1 of 16	ENST00000261769.10	NP_004351.1	P12830-1A0A0U2ZQU7B3GN61

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CDH1	ENST00000261769.10 link	c.44_46delTGC	p.Leu15del	disruptive_inframe_deletion, splice_region_variant	Exon 1 of 16	1	NM_004360.5	ENSP00000261769.4	P12830-1
CDH1	ENST00000422392.6 link	c.44_46delTGC	p.Leu15del	disruptive_inframe_deletion, splice_region_variant	Exon 1 of 15	1		ENSP00000414946.2	P12830-2
CDH1	ENST00000566612.5 link	n.44_46delTGC		splice_region_variant, non_coding_transcript_exon_variant	Exon 1 of 15	1		ENSP00000454782.1	H3BNC6
CDH1	ENST00000566510.5 link	n.44_46delTGC		splice_region_variant, non_coding_transcript_exon_variant	Exon 1 of 15	5		ENSP00000458139.1	H3BVI7

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

AN:

152102

Hom.:

Cov.:

Gnomad AFR

AF:

0.00

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

GnomAD2 exomes

AF:

0.000241

AC:

AN:

124448

AF XY:

0.000233

show subpopulations

Gnomad AFR exome

AF:

0.00135

Gnomad AMR exome

AF:

0.000126

Gnomad ASJ exome

AF:

0.000129

Gnomad EAS exome

AF:

0.000308

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000236

Gnomad OTH exome

AF:

0.000522

GnomAD4 exome

AF:

0.0000494

AC:

AN:

1315328

Hom.:

AF XY:

0.0000538

AC XY:

AN XY:

651108

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.000269

AC:

AN:

29794

American (AMR)

AF:

0.000172

AC:

AN:

34802

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24176

East Asian (EAS)

AF:

0.000202

AC:

AN:

34622

South Asian (SAS)

AF:

0.0000521

AC:

AN:

76798

European-Finnish (FIN)

AF:

0.00

AC:

AN:

33686

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3946

European-Non Finnish (NFE)

AF:

0.0000362

AC:

AN:

1022236

Other (OTH)

AF:

0.0000543

AC:

AN:

55268

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 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: 0.242

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

152102

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74312

African (AFR)

AF:

0.00

AC:

AN:

41436

American (AMR)

AF:

0.00

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10588

Middle Eastern (MID)

AF:

0.00

AC:

AN:

310

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67996

Other (OTH)

AF:

0.00

AC:

AN:

2092

Alfa

AF:

0.00480

Hom.:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Hereditary diffuse gastric adenocarcinoma

Uncertain:1Benign:1

Aug 31, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant, c.44_46del, results in the deletion of 1 amino acid(s) of the CDH1 protein (p.Leu15del), but otherwise preserves the integrity of the reading frame. While this variant is present in population databases (rs761309816), the frequency information is unreliable, as metrics indicate poor data quality at this position in the ExAC database. This variant has been observed in individual(s) with gastric cancer (PMID: 23431106). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. 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. -

May 28, 2019

Mendelics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

1.9

Mutation Taster

=81/19

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over