rs199682735

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_024422.6(DSC2):​c.857G>T​(p.Gly286Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000861 in 1,614,082 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G286W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00025 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000069 ( 1 hom. )

Consequence

DSC2
NM_024422.6 missense

Scores

2
16

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:6

Conservation

PhyloP100: 1.03

Publications

1 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: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.057380438).
BP6
Variant 18-31086661-C-A is Benign according to our data. Variant chr18-31086661-C-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 191623.
BS1
Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.00025 (38/152240) while in subpopulation AMR AF = 0.00137 (21/15286). AF 95% confidence interval is 0.00092. There are 0 homozygotes in GnomAd4. There are 17 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

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.857G>Tp.Gly286Val
missense
Exon 7 of 16NP_077740.1Q02487-1
DSC2
NM_004949.5
c.857G>Tp.Gly286Val
missense
Exon 7 of 17NP_004940.1Q02487-2
DSC2
NM_001406506.1
c.428G>Tp.Gly143Val
missense
Exon 7 of 16NP_001393435.1A0A3B3ISU0

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DSC2
ENST00000280904.11
TSL:1 MANE Select
c.857G>Tp.Gly286Val
missense
Exon 7 of 16ENSP00000280904.6Q02487-1
DSC2
ENST00000251081.8
TSL:1
c.857G>Tp.Gly286Val
missense
Exon 7 of 17ENSP00000251081.6Q02487-2
DSC2
ENST00000713707.1
c.857G>Tp.Gly286Val
missense
Exon 7 of 16ENSP00000519010.1A0AAQ5BGP6

Frequencies

GnomAD3 genomes
AF:
0.000250
AC:
38
AN:
152122
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000145
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00138
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:
0.000162
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000955
AC:
24
AN:
251362
AF XY:
0.000118
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.000318
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000968
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000691
AC:
101
AN:
1461842
Hom.:
1
Cov.:
31
AF XY:
0.0000756
AC XY:
55
AN XY:
727218
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33476
American (AMR)
AF:
0.000425
AC:
19
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39692
South Asian (SAS)
AF:
0.0000348
AC:
3
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53416
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
0.0000638
AC:
71
AN:
1111994
Other (OTH)
AF:
0.000132
AC:
8
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
8
17
25
34
42
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000250
AC:
38
AN:
152240
Hom.:
0
Cov.:
32
AF XY:
0.000228
AC XY:
17
AN XY:
74436
show subpopulations
African (AFR)
AF:
0.000144
AC:
6
AN:
41560
American (AMR)
AF:
0.00137
AC:
21
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5170
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4802
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10610
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000162
AC:
11
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.530
Heterozygous variant carriers
0
2
4
6
8
10
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:
0.000111
Hom.:
0
Bravo
AF:
0.000363
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.0000741
AC:
9
EpiCase
AF:
0.000109
EpiControl
AF:
0.000119

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
2
not provided (3)
-
1
1
Arrhythmogenic right ventricular dysplasia 11 (2)
-
1
1
not specified (2)
-
-
1
Cardiomyopathy (1)
-
-
1
Cardiovascular phenotype (1)
-
1
-
Familial isolated arrhythmogenic right ventricular dysplasia (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.23
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.48
CADD
Benign
17
DANN
Uncertain
0.98
DEOGEN2
Benign
0.13
T
Eigen
Benign
-0.55
Eigen_PC
Benign
-0.53
FATHMM_MKL
Benign
0.29
N
LIST_S2
Benign
0.85
D
M_CAP
Uncertain
0.095
D
MetaRNN
Benign
0.057
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.7
L
PhyloP100
1.0
PrimateAI
Benign
0.29
T
PROVEAN
Benign
-1.2
N
REVEL
Benign
0.066
Sift
Benign
0.064
T
Sift4G
Benign
0.087
T
Polyphen
0.47
P
Vest4
0.27
MVP
0.67
MPC
0.18
ClinPred
0.030
T
GERP RS
3.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.12
gMVP
0.41
Mutation Taster
=98/2
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
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

Other links and lift over

dbSNP: rs199682735; hg19: chr18-28666624; API