rs727504823

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PVS1_Moderate

The NM_024422.6(DSC2):​c.2623C>T​(p.Arg875*) variant causes a stop gained change. The variant allele was found at a frequency of 0.0000136 in 1,613,778 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. R875R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

DSC2
NM_024422.6 stop_gained

Scores

2
3
1

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:9

Conservation

PhyloP100: 3.74

Publications

2 publications found
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]
DSC2 Gene-Disease associations (from GenCC):
  • arrhythmogenic right ventricular dysplasia 11
    Inheritance: AD, AR, SD Classification: DEFINITIVE, STRONG, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics
  • familial isolated arrhythmogenic right ventricular dysplasia
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • colorectal adenoma
    Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.0307 CDS is truncated, and there are 0 pathogenic variants in the truncated region.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024422.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DSC2
NM_024422.6
MANE Select
c.2623C>Tp.Arg875*
stop_gained
Exon 16 of 16NP_077740.1Q02487-1
DSC2
NM_001406506.1
c.2194C>Tp.Arg732*
stop_gained
Exon 16 of 16NP_001393435.1A0A3B3ISU0
DSC2
NM_004949.5
c.*125C>T
3_prime_UTR
Exon 17 of 17NP_004940.1Q02487-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DSC2
ENST00000280904.11
TSL:1 MANE Select
c.2623C>Tp.Arg875*
stop_gained
Exon 16 of 16ENSP00000280904.6Q02487-1
DSC2
ENST00000251081.8
TSL:1
c.*125C>T
3_prime_UTR
Exon 17 of 17ENSP00000251081.6Q02487-2
DSC2
ENST00000713707.1
c.2644C>Tp.Arg882*
stop_gained
Exon 16 of 16ENSP00000519010.1A0AAQ5BGP6

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151978
Hom.:
0
Cov.:
32
show subpopulations
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000279
AC:
7
AN:
251232
AF XY:
0.0000221
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000440
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000137
AC:
20
AN:
1461800
Hom.:
0
Cov.:
31
AF XY:
0.0000124
AC XY:
9
AN XY:
727200
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33478
American (AMR)
AF:
0.0000224
AC:
1
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39680
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53408
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.0000126
AC:
14
AN:
1111972
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
2
4
7
9
11
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:
0.0000132
AC:
2
AN:
151978
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74218
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41378
American (AMR)
AF:
0.00
AC:
0
AN:
15232
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10560
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68016
Other (OTH)
AF:
0.00
AC:
0
AN:
2084
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
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:
0.0000431
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
Arrhythmogenic right ventricular dysplasia 11 (2)
-
2
-
not provided (2)
-
1
-
Arrhythmogenic right ventricular cardiomyopathy (1)
-
1
-
Cardiomyopathy (1)
-
1
-
Cardiovascular phenotype (1)
-
1
-
Familial isolated arrhythmogenic right ventricular dysplasia (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.29
D
BayesDel_noAF
Pathogenic
0.30
CADD
Pathogenic
36
DANN
Uncertain
0.99
Eigen
Uncertain
0.21
Eigen_PC
Benign
0.026
FATHMM_MKL
Uncertain
0.87
D
PhyloP100
3.7
Vest4
0.46
GERP RS
4.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Mutation Taster
=32/168
disease causing

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

Other links and lift over

dbSNP: rs727504823; hg19: chr18-28648064; COSMIC: COSV51868572; API