rs367990772

Variant summary

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

The NM_024422.6(DSC2):​c.2264G>T​(p.Gly755Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000347 in 1,614,072 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 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. G755S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

DSC2
NM_024422.6 missense

Scores

2
16

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:3

Conservation

PhyloP100: 0.0430

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):
  • familial isolated arrhythmogenic right ventricular dysplasia
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • arrhythmogenic right ventricular dysplasia 11
    Inheritance: AR, AD, SD Classification: DEFINITIVE, STRONG, LIMITED Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
  • 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=0.029767126).
BP6
Variant 18-31069138-C-A is Benign according to our data. Variant chr18-31069138-C-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 536270.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000177 (27/152246) while in subpopulation AFR AF = 0.000578 (24/41522). AF 95% confidence interval is 0.000398. There are 0 homozygotes in GnomAd4. There are 9 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.2264G>Tp.Gly755Val
missense
Exon 15 of 16NP_077740.1Q02487-1
DSC2
NM_004949.5
c.2264G>Tp.Gly755Val
missense
Exon 15 of 17NP_004940.1Q02487-2
DSC2
NM_001406506.1
c.1835G>Tp.Gly612Val
missense
Exon 15 of 16NP_001393435.1A0A3B3ISU0

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DSC2
ENST00000280904.11
TSL:1 MANE Select
c.2264G>Tp.Gly755Val
missense
Exon 15 of 16ENSP00000280904.6Q02487-1
DSC2
ENST00000251081.8
TSL:1
c.2264G>Tp.Gly755Val
missense
Exon 15 of 17ENSP00000251081.6Q02487-2
DSC2
ENST00000713707.1
c.2285G>Tp.Gly762Val
missense
Exon 15 of 16ENSP00000519010.1A0AAQ5BGP6

Frequencies

GnomAD3 genomes
AF:
0.000177
AC:
27
AN:
152128
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000580
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.0000439
AC:
11
AN:
250794
AF XY:
0.0000443
show subpopulations
Gnomad AFR exome
AF:
0.000618
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000198
AC:
29
AN:
1461826
Hom.:
0
Cov.:
32
AF XY:
0.0000234
AC XY:
17
AN XY:
727218
show subpopulations
African (AFR)
AF:
0.000717
AC:
24
AN:
33480
American (AMR)
AF:
0.0000447
AC:
2
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39694
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53416
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111970
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60386
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.494
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

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:
0.000177
AC:
27
AN:
152246
Hom.:
0
Cov.:
32
AF XY:
0.000121
AC XY:
9
AN XY:
74440
show subpopulations
African (AFR)
AF:
0.000578
AC:
24
AN:
41522
American (AMR)
AF:
0.0000654
AC:
1
AN:
15296
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
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:
0.0000294
AC:
2
AN:
68026
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.508
Heterozygous variant carriers
0
1
2
4
5
6
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:
0.000263
Hom.:
0
Bravo
AF:
0.000185
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000577
AC:
7
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

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

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.30
T
BayesDel_noAF
Benign
-0.32
CADD
Benign
14
DANN
Benign
0.81
DEOGEN2
Benign
0.044
T
Eigen
Benign
-0.56
Eigen_PC
Benign
-0.59
FATHMM_MKL
Uncertain
0.78
D
LIST_S2
Benign
0.81
T
M_CAP
Benign
0.052
D
MetaRNN
Benign
0.030
T
MetaSVM
Benign
-0.98
T
MutationAssessor
Uncertain
2.9
M
PhyloP100
0.043
PrimateAI
Benign
0.34
T
PROVEAN
Benign
-0.96
N
REVEL
Benign
0.12
Sift
Benign
0.24
T
Sift4G
Benign
0.16
T
Polyphen
0.012
B
Vest4
0.48
MVP
0.71
MPC
0.10
ClinPred
0.051
T
GERP RS
0.62
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.053
gMVP
0.55
Mutation Taster
=98/2
polymorphism

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

Other links and lift over

dbSNP: rs367990772; hg19: chr18-28649104; API