18-31546033-T-C

Position:

chr18-31546033-T-C

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001943.5(DSG2):c.2647T>C(p.Ser883Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00115 in 1,614,156 control chromosomes in the GnomAD database, including 13 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S883F) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0061 ( 8 hom., cov: 32)

Exomes 𝑓: 0.00064 ( 5 hom. )

Consequence

DSG2
NM_001943.5 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:17

Conservation

PhyloP100: -0.556

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 links:

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

DSG2-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0031824112).

BP6

Variant 18-31546033-T-C is Benign according to our data. Variant chr18-31546033-T-C is described in ClinVar as [Benign]. Clinvar id is 36011.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr18-31546033-T-C is described in Lovd as [Benign].

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00605 (922/152306) while in subpopulation AFR AF= 0.0209 (870/41562). AF 95% confidence interval is 0.0198. There are 8 homozygotes in gnomad4. There are 461 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 922 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
DSG2	NM_001943.5 linkuse as main transcript	c.2647T>C	p.Ser883Pro	missense_variant	15/15	ENST00000261590.13
DSG2-AS1	NR_045216.1 linkuse as main transcript	n.1346-127A>G		intron_variant, non_coding_transcript_variant
DSG2	XM_047437315.1 linkuse as main transcript	c.2113T>C	p.Ser705Pro	missense_variant	16/16

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
DSG2	ENST00000261590.13 linkuse as main transcript	c.2647T>C	p.Ser883Pro	missense_variant	15/15	1	NM_001943.5	P1
DSG2-AS1	ENST00000583706.5 linkuse as main transcript	n.1384-127A>G		intron_variant, non_coding_transcript_variant		5
DSG2-AS1	ENST00000657343.1 linkuse as main transcript	n.697-127A>G		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes

AF:

0.00606

AC:

922

AN:

152188

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0210

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00209

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00949

Gnomad NFE

AF:

0.000103

Gnomad OTH

AF:

0.00478

GnomAD3 exomes

AF:

0.00158

AC:

394

AN:

248722

Hom.:

AF XY:

0.00121

AC XY:

164

AN XY:

134988

show subpopulations

Gnomad AFR exome

AF:

0.0217

Gnomad AMR exome

AF:

0.00142

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000444

Gnomad OTH exome

AF:

0.000662

GnomAD4 exome

AF:

0.000639

AC:

934

AN:

1461850

Hom.:

Cov.:

AF XY:

0.000543

AC XY:

395

AN XY:

727232

show subpopulations

Gnomad4 AFR exome

AF:

0.0217

Gnomad4 AMR exome

AF:

0.00143

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000696

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000441

Gnomad4 OTH exome

AF:

0.00126

GnomAD4 genome

AF:

0.00605

AC:

922

AN:

152306

Hom.:

Cov.:

AF XY:

0.00619

AC XY:

461

AN XY:

74478

show subpopulations

Gnomad4 AFR

AF:

0.0209

Gnomad4 AMR

AF:

0.00209

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000103

Gnomad4 OTH

AF:

0.00473

Alfa

AF:

0.00108

Hom.:

Bravo

AF:

0.00674

ESP6500AA

AF:

0.0179

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00187

AC:

226

Asia WGS

AF:

0.000866

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Benign

Submissions summary: Benign:17

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:7

Benign, criteria provided, single submitter	research	Biesecker Lab/Clinical Genomics Section, National Institutes of Health	Jun 24, 2013	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Oct 10, 2013	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -
Benign, no assertion criteria provided	clinical testing	Clinical Genetics, Academic Medical Center	-	- -
Benign, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Mar 19, 2012	Ser883Pro in exon 15 of DGS2: This variant is not expected to have clinical sign ificance because it has been identified in 1.9% (57/3044) of African American ch romosomes from a broad population by the NHLBI Exome Sequencing Project (http:// evs.gs.washington.edu/EVS/; dbSNP rs34417028) -
Benign, no assertion criteria provided	clinical testing	Genome Diagnostics Laboratory, University Medical Center Utrecht	-	- -
Benign, no assertion criteria provided	clinical testing	Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+	-	- -

Cardiomyopathy

Benign:3

Benign, no assertion criteria provided	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	May 12, 2014	- -
Benign, criteria provided, single submitter	clinical testing	CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario	Jan 18, 2023	- -
Benign, criteria provided, single submitter	clinical testing	Color Diagnostics, LLC DBA Color Health	Jun 04, 2018	- -

not provided

Benign:3

Benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Oct 10, 2023	- -
Benign, criteria provided, single submitter	clinical testing	Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute	-	- -
Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -

Arrhythmogenic right ventricular cardiomyopathy

Benign:1

Benign, criteria provided, single submitter

clinical testing

All of Us Research Program, National Institutes of Health

Feb 05, 2024

- -

Arrhythmogenic right ventricular dysplasia 10

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 31, 2024

- -

Arrhythmogenic right ventricular dysplasia 10;C2752072:Dilated cardiomyopathy 1BB

Benign:1

Benign, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Dec 03, 2021

- -

Restrictive cardiomyopathy;C0878544:Cardiomyopathy

Benign:1

Benign, criteria provided, single submitter

clinical testing

Center for Advanced Laboratory Medicine, UC San Diego Health, University of California San Diego

Aug 13, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.074

BayesDel_addAF

Benign

-0.57

BayesDel_noAF

Benign

-0.58

CADD

Benign

DANN

Uncertain

0.97

DEOGEN2

Benign

0.087

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.10

LIST_S2

Benign

0.46

MetaRNN

Benign

0.0032

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.90

MutationTaster

Benign

1.0

PrimateAI

Benign

0.27

PROVEAN

Benign

-0.74

REVEL

Benign

0.033

Sift

Benign

0.10

Sift4G

Benign

0.29

Polyphen

0.0060

Vest4

0.11

MVP

0.51

MPC

0.093

ClinPred

0.0022

GERP RS

-1.4

Varity_R

0.077

gMVP

0.27

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over