chr18-31538880-T-A

Position:

• chr18-31538880-T-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001943.5(DSG2):​c.1781T>A​(p.Leu594Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L594P) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: DSG2 NM_001943.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.85

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.20744145).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DSG2	NM_001943.5	c.1781T>A	p.Leu594Gln	missense_variant	12/15	ENST00000261590.13	NP_001934.2
DSG2	XM_047437315.1	c.1247T>A	p.Leu416Gln	missense_variant	13/16		XP_047293271.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DSG2	ENST00000261590.13	c.1781T>A	p.Leu594Gln	missense_variant	12/15	1	NM_001943.5	ENSP00000261590	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.074
BayesDel_addAF	Benign	-0.13	T
BayesDel_noAF	Benign	-0.43
CADD	Benign	17
DANN	Benign	0.95
DEOGEN2	Benign	0.092	T
Eigen	Benign	-0.37
Eigen_PC	Benign	-0.20
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Benign	0.55	T
M_CAP	Benign	0.022	T
MetaRNN	Benign	0.21	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.6	L
MutationTaster	Benign	0.85	N
PrimateAI	Benign	0.33	T
PROVEAN	Benign	0.40	N
REVEL	Benign	0.072
Sift	Benign	0.062	T
Sift4G	Benign	0.39	T
Polyphen		0.12	B
Vest4		0.28
MutPred		0.63		Loss of stability (P = 0.0178);
MVP		0.61
MPC		0.095
ClinPred		0.12	T
GERP RS		4.7
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.28
gMVP		0.57

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr18-29118843;