rs553299589

Variant summary

Our verdict is Likely pathogenic. The variant received 9 ACMG points: 9P and 0B. PVS1PP5

The NM_001943.5(DSG2):​c.523+1G>A variant causes a splice donor, intron change. The variant allele was found at a frequency of 0.0000131 in 1,451,740 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000013 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

DSG2
NM_001943.5 splice_donor, intron

Scores

5
1
Splicing: ADA: 1.000
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:7U:2

Conservation

PhyloP100: 6.36

Publications

8 publications found
Variant links:
Genes affected
DSG2 (HGNC:3049): (desmoglein 2) This gene encodes a member of the desmoglein family and cadherin cell adhesion molecule superfamily of proteins. Desmogleins are calcium-binding transmembrane glycoprotein components of desmosomes, cell-cell junctions between epithelial, myocardial, and other cell types. The encoded preproprotein is proteolytically processed to generate the mature glycoprotein. This gene is present in a gene cluster with other desmoglein gene family members on chromosome 18. Mutations in this gene have been associated with arrhythmogenic right ventricular dysplasia, familial, 10. [provided by RefSeq, Jan 2016]
DSG2 Gene-Disease associations (from GenCC):
  • arrhythmogenic right ventricular cardiomyopathy
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • arrhythmogenic right ventricular dysplasia 10
    Inheritance: AD, AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
  • familial isolated dilated cardiomyopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • dilated cardiomyopathy
    Inheritance: AD Classification: LIMITED Submitted by: ClinGen
  • dilated cardiomyopathy 1BB
    Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 9 ACMG points.

PVS1
Splicing +-2 bp (donor or acceptor) variant, LoF is a know mechanism of disease, No cryptic splice site detected. Exon removal results in frameshift change.
PP5
Variant 18-31521244-G-A is Pathogenic according to our data. Variant chr18-31521244-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 188446.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001943.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DSG2
NM_001943.5
MANE Select
c.523+1G>A
splice_donor intron
N/ANP_001934.2

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DSG2
ENST00000261590.13
TSL:1 MANE Select
c.523+1G>A
splice_donor intron
N/AENSP00000261590.8
DSG2
ENST00000684461.1
n.355G>A
non_coding_transcript_exon
Exon 3 of 3
DSG2
ENST00000713817.1
c.514+1G>A
splice_donor intron
N/AENSP00000519121.1

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
0
AN:
150806
Hom.:
0
Cov.:
32
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000420
AC:
1
AN:
238030
AF XY:
0.00000774
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000471
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000131
AC:
19
AN:
1451740
Hom.:
0
Cov.:
32
AF XY:
0.0000125
AC XY:
9
AN XY:
721696
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32734
American (AMR)
AF:
0.00
AC:
0
AN:
43472
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25884
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39568
South Asian (SAS)
AF:
0.00
AC:
0
AN:
83250
European-Finnish (FIN)
AF:
0.0000377
AC:
2
AN:
53022
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5712
European-Non Finnish (NFE)
AF:
0.0000153
AC:
17
AN:
1108194
Other (OTH)
AF:
0.00
AC:
0
AN:
59904
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.486
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

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
Data not reliable, filtered out with message: AC0;AS_VQSR
AF:
0.00
AC:
0
AN:
150806
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
73524
African (AFR)
AF:
0.00
AC:
0
AN:
41040
American (AMR)
AF:
0.00
AC:
0
AN:
15134
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3458
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5156
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4788
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10148
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
310
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67790
Other (OTH)
AF:
0.00
AC:
0
AN:
2072
Alfa
AF:
0.0000180
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
1
1
-
Arrhythmogenic right ventricular cardiomyopathy (2)
2
-
-
Arrhythmogenic right ventricular dysplasia 10 (2)
2
-
-
not provided (2)
1
-
-
Arrhythmogenic right ventricular dysplasia 9 (1)
-
1
-
Cardiomyopathy (1)
1
-
-
Cardiovascular phenotype (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.63
D
BayesDel_noAF
Pathogenic
0.18
CADD
Pathogenic
33
DANN
Uncertain
0.99
Eigen
Pathogenic
0.99
Eigen_PC
Pathogenic
0.79
FATHMM_MKL
Pathogenic
0.99
D
PhyloP100
6.4
GERP RS
5.6
Mutation Taster
=1/99
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.91
SpliceAI score (max)
1.0
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.31
Position offset: -15
DS_DL_spliceai
1.0
Position offset: -1

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

Publications

Other links and lift over

dbSNP: rs553299589; hg19: chr18-29101207; API