rs137941742

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 2P and 17B. PM2BP4_StrongBP6_Very_StrongBP7BS1

The NM_024422.6(DSC2):​c.348A>G​(p.Gln116Gln) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000356 in 1,612,054 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00037 ( 1 hom. )

Consequence

DSC2
NM_024422.6 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:13

Conservation

PhyloP100: 0.00200
Variant links:
Genes affected
DSC2 (HGNC:3036): (desmocollin 2) This gene encodes a member of the desmocollin protein subfamily. Desmocollins, along with desmogleins, are cadherin-like transmembrane glycoproteins that are major components of the desmosome. Desmosomes are cell-cell junctions that help resist shearing forces and are found in high concentrations in cells subject to mechanical stress. This gene is found in a cluster with other desmocollin family members on chromosome 18. Mutations in this gene are associated with arrhythmogenic right ventricular dysplasia-11, and reduced protein expression has been described in several types of cancer. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2015]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -15 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 18-31092107-T-C is Benign according to our data. Variant chr18-31092107-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 163192.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr18-31092107-T-C is described in Lovd as [Benign]. Variant chr18-31092107-T-C is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=0.002 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000243 (37/152236) while in subpopulation NFE AF= 0.000441 (30/68042). AF 95% confidence interval is 0.000317. There are 0 homozygotes in gnomad4. There are 19 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DSC2NM_024422.6 linkc.348A>G p.Gln116Gln synonymous_variant Exon 3 of 16 ENST00000280904.11 NP_077740.1 Q02487-1
DSC2NM_004949.5 linkc.348A>G p.Gln116Gln synonymous_variant Exon 3 of 17 NP_004940.1 Q02487-2
DSC2NM_001406506.1 linkc.-82A>G 5_prime_UTR_variant Exon 3 of 16 NP_001393435.1
DSC2NM_001406507.1 linkc.-82A>G 5_prime_UTR_variant Exon 3 of 17 NP_001393436.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DSC2ENST00000280904.11 linkc.348A>G p.Gln116Gln synonymous_variant Exon 3 of 16 1 NM_024422.6 ENSP00000280904.6 Q02487-1
DSC2ENST00000251081.8 linkc.348A>G p.Gln116Gln synonymous_variant Exon 3 of 17 1 ENSP00000251081.6 Q02487-2
DSC2ENST00000648081.1 linkc.-119A>G 5_prime_UTR_variant Exon 3 of 17 ENSP00000497441.1 A0A3B3ISU0
DSC2ENST00000682357.1 linkc.-82A>G 5_prime_UTR_variant Exon 3 of 16 ENSP00000507826.1 A0A3B3ISU0

Frequencies

GnomAD3 genomes
AF:
0.000243
AC:
37
AN:
152236
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000413
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000283
AC:
71
AN:
250746
Hom.:
0
AF XY:
0.000347
AC XY:
47
AN XY:
135574
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.0000870
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000917
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000300
Gnomad OTH exome
AF:
0.000655
GnomAD4 exome
AF:
0.000368
AC:
537
AN:
1459818
Hom.:
1
Cov.:
31
AF XY:
0.000392
AC XY:
285
AN XY:
726250
show subpopulations
Gnomad4 AFR exome
AF:
0.0000898
Gnomad4 AMR exome
AF:
0.000134
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00102
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000376
Gnomad4 OTH exome
AF:
0.000315
GnomAD4 genome
AF:
0.000243
AC:
37
AN:
152236
Hom.:
0
Cov.:
33
AF XY:
0.000255
AC XY:
19
AN XY:
74378
show subpopulations
Gnomad4 AFR
AF:
0.0000482
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000413
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000321
Hom.:
0
Bravo
AF:
0.000306
EpiCase
AF:
0.000491
EpiControl
AF:
0.000237

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:13
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:5
Nov 21, 2024
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Mar 03, 2015
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jan 01, 2023
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

DSC2: BP4, BP7 -

-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

not specified Benign:3
Mar 19, 2012
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Gln116Gln in exon 3 of DSC2: This variant is not expected to have clinical signi ficance because it does not alter an amino acid residue and is not located withi n the splice consensus sequence. It has been identified in 3/7016 European Ameri can chromosomes from a broad population by the NHLBI Exome Sequencing Project (h ttp://evs.gs.washington.edu/EVS; dbSNP rs137941742). -

-
Clinical Genetics, Academic Medical Center
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Mar 11, 2024
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Cardiomyopathy Benign:2
May 10, 2021
CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Oct 08, 2018
Color Diagnostics, LLC DBA Color Health
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Arrhythmogenic right ventricular dysplasia 11 Benign:1
Jan 28, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Cardiovascular phenotype Benign:1
Apr 15, 2017
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. -

Familial isolated arrhythmogenic right ventricular dysplasia Benign:1
Feb 05, 2024
All of Us Research Program, National Institutes of Health
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
4.4
DANN
Benign
0.34
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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

LitVar

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

Other links and lift over

dbSNP: rs137941742; hg19: chr18-28672070; API