chr16-68823393-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The ENST00000261769.10(CDH1):​c.1937-6C>T variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000692 in 1,445,602 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

CDH1
ENST00000261769.10 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.00001916
2

Clinical Significance

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

Conservation

PhyloP100: 0.0960
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BP6
Variant 16-68823393-C-T is Benign according to our data. Variant chr16-68823393-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 1329261.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Likely_benign=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CDH1NM_004360.5 linkuse as main transcriptc.1937-6C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000261769.10 NP_004351.1
CDH1NM_001317184.2 linkuse as main transcriptc.1754-6C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant NP_001304113.1
CDH1NM_001317185.2 linkuse as main transcriptc.389-6C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant NP_001304114.1
CDH1NM_001317186.2 linkuse as main transcriptc.-29-6C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant NP_001304115.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CDH1ENST00000261769.10 linkuse as main transcriptc.1937-6C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_004360.5 ENSP00000261769 P1P12830-1
ENST00000563916.1 linkuse as main transcriptn.134G>A non_coding_transcript_exon_variant 1/34

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
AF:
6.92e-7
AC:
1
AN:
1445602
Hom.:
0
Cov.:
29
AF XY:
0.00
AC XY:
0
AN XY:
720314
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31

ClinVar

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

Submissions by phenotype

Breast and/or ovarian cancer Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern OntarioJun 25, 2020- -
Hereditary diffuse gastric adenocarcinoma Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpNov 14, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
4.1
DANN
Benign
0.39

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000019
dbscSNV1_RF
Benign
0.0
SpliceAI score (max)
0.050
Details are displayed if max score is > 0.2

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs753223955; hg19: chr16-68857296; API