Variant 18-31524539-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001943.5(DSG2):c.782G>T(p.Arg261Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,792 control chromosomes in the GnomAD database, with no homozygous occurrence. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. R261R) has been classified as Benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

DSG2
NM_001943.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.39

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:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DSG2	NM_001943.5 linkuse as main transcript	c.782G>T	p.Arg261Leu	missense_variant	7/15	ENST00000261590.13	NP_001934.2
DSG2	XM_047437315.1 linkuse as main transcript	c.248G>T	p.Arg83Leu	missense_variant	8/16		XP_047293271.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris
DSG2	ENST00000261590.13 linkuse as main transcript	c.782G>T	p.Arg261Leu	missense_variant	7/15	1	NM_001943.5	ENSP00000261590	P1
DSG2	ENST00000682087.2 linkuse as main transcript	n.613G>T		non_coding_transcript_exon_variant	5/6
DSG2	ENST00000683614.2 linkuse as main transcript	n.613G>T		non_coding_transcript_exon_variant	5/7

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000804

AC:

AN:

248768

Hom.:

AF XY:

0.00000741

AC XY:

AN XY:

134988

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000557

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461792

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727196

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000828

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.18

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Benign

-0.32

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.35

Eigen

Benign

-0.030

Eigen_PC

Benign

-0.017

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.57

M_CAP

Benign

0.046

MetaRNN

Uncertain

0.59

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.92

MutationTaster

Benign

0.57

PrimateAI

Benign

0.22

PROVEAN

Uncertain

-3.7

REVEL

Benign

0.19

Sift

Uncertain

0.0040

Sift4G

Uncertain

0.024

Polyphen

0.82

Vest4

0.50

MutPred

0.55

Loss of MoRF binding (P = 0.0494);

MVP

0.69

MPC

0.34

ClinPred

0.88

GERP RS

-0.19

Varity_R

0.34

gMVP

0.48

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over