chr18-31542793-G-A

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4

The NM_001943.5(DSG2):​c.2275G>A​(p.Gly759Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000168 in 1,604,708 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G759A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000040 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

DSG2
NM_001943.5 missense

Scores

3
15

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:8

Conservation

PhyloP100: 2.01

Publications

0 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-AS1 (HGNC:51311): (DSG2 antisense RNA 1)

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.27392355).

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

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DSG2
NM_001943.5
MANE Select
c.2275G>Ap.Gly759Arg
missense
Exon 14 of 15NP_001934.2Q14126
DSG2-AS1
NR_045216.1
n.1810+309C>T
intron
N/A

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DSG2
ENST00000261590.13
TSL:1 MANE Select
c.2275G>Ap.Gly759Arg
missense
Exon 14 of 15ENSP00000261590.8Q14126
DSG2
ENST00000713817.1
c.2266G>Ap.Gly756Arg
missense
Exon 15 of 16ENSP00000519121.1A0AAQ5BGZ7
DSG2
ENST00000713819.1
c.2266G>Ap.Gly756Arg
missense
Exon 16 of 17ENSP00000519123.1A0AAQ5BGZ7

Frequencies

GnomAD3 genomes
AF:
0.0000396
AC:
6
AN:
151576
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000658
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:
0.0000206
AC:
5
AN:
242532
AF XY:
0.0000228
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000608
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000181
Gnomad OTH exome
AF:
0.000172
GnomAD4 exome
AF:
0.0000145
AC:
21
AN:
1453132
Hom.:
0
Cov.:
32
AF XY:
0.0000125
AC XY:
9
AN XY:
722078
show subpopulations
African (AFR)
AF:
0.0000608
AC:
2
AN:
32880
American (AMR)
AF:
0.0000694
AC:
3
AN:
43238
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25630
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39572
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85356
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53246
Middle Eastern (MID)
AF:
0.000175
AC:
1
AN:
5700
European-Non Finnish (NFE)
AF:
0.0000117
AC:
13
AN:
1107614
Other (OTH)
AF:
0.0000334
AC:
2
AN:
59896
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

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:
0.0000396
AC:
6
AN:
151576
Hom.:
0
Cov.:
31
AF XY:
0.0000406
AC XY:
3
AN XY:
73972
show subpopulations
African (AFR)
AF:
0.000121
AC:
5
AN:
41192
American (AMR)
AF:
0.0000658
AC:
1
AN:
15206
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5160
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4760
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10530
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67956
Other (OTH)
AF:
0.00
AC:
0
AN:
2076
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000645
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.00000826
AC:
1
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
3
-
Arrhythmogenic right ventricular dysplasia 10 (3)
-
2
-
not provided (2)
-
1
-
Arrhythmogenic right ventricular cardiomyopathy (1)
-
1
-
Cardiomyopathy (1)
-
1
-
Cardiovascular phenotype (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.12
T
BayesDel_noAF
Benign
-0.23
CADD
Benign
19
DANN
Uncertain
1.0
DEOGEN2
Benign
0.19
T
Eigen
Benign
-0.026
Eigen_PC
Benign
-0.0092
FATHMM_MKL
Benign
0.75
D
LIST_S2
Benign
0.76
T
M_CAP
Benign
0.067
D
MetaRNN
Benign
0.27
T
MetaSVM
Benign
-0.96
T
MutationAssessor
Uncertain
2.8
M
PhyloP100
2.0
PrimateAI
Benign
0.31
T
PROVEAN
Benign
-2.2
N
REVEL
Benign
0.23
Sift
Uncertain
0.013
D
Sift4G
Benign
0.11
T
Polyphen
0.91
P
Vest4
0.28
MutPred
0.43
Gain of MoRF binding (P = 0.0068)
MVP
0.84
MPC
0.24
ClinPred
0.77
D
GERP RS
4.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.056
gMVP
0.59
Mutation Taster
=71/29
polymorphism

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: rs765793636; hg19: chr18-29122756; COSMIC: COSV55203653; API