16-68819429-AG-AGGGG

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 2P and 8B. PM2BP6_Very_Strong

The NM_004360.5(CDH1):​c.1711+7_1711+9dupGGG variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,818 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

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

Consequence

CDH1
NM_004360.5 intron

Scores

Not classified

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 1.36

Publications

0 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 -6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP6
Variant 16-68819429-A-AGGG is Benign according to our data. Variant chr16-68819429-A-AGGG is described in ClinVar as Likely_benign. ClinVar VariationId is 532498.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004360.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CDH1
NM_004360.5
MANE Select
c.1711+7_1711+9dupGGG
intron
N/ANP_004351.1
CDH1
NM_001317184.2
c.1528+7_1528+9dupGGG
intron
N/ANP_001304113.1
CDH1
NM_001317185.2
c.163+7_163+9dupGGG
intron
N/ANP_001304114.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CDH1
ENST00000261769.10
TSL:1 MANE Select
c.1711+4_1711+5insGGG
splice_region intron
N/AENSP00000261769.4
CDH1
ENST00000422392.6
TSL:1
c.1528+4_1528+5insGGG
splice_region intron
N/AENSP00000414946.2
CDH1
ENST00000562836.5
TSL:1
n.1782+4_1782+5insGGG
splice_region intron
N/A

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD2 exomes
AF:
0.00000795
AC:
2
AN:
251472
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:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1460818
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
726708
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
33454
American (AMR)
AF:
0.00
AC:
0
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86206
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53412
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4992
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111918
Other (OTH)
AF:
0.00
AC:
0
AN:
60288
⚠️ 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: 0.375
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
31
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Hereditary diffuse gastric adenocarcinoma Benign:2
Oct 23, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Sep 19, 2024
Myriad Genetics, Inc.
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign. This variant is intronic and is not expected to impact mRNA splicing.

Hereditary cancer-predisposing syndrome Benign:1
Dec 05, 2018
Color Diagnostics, LLC DBA Color Health
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
PhyloP100
1.4

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs762825233; hg19: chr16-68853332; API