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NM_001943.5(DSG2):c.2033G>C (p.Gly678Ala) AND Cardiomyopathy

Germline classification:
Uncertain significance (2 submissions)
Last evaluated:
Nov 28, 2022
Review status:
2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts
Somatic classification
of clinical impact:
None
Review status:
(0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided
Somatic classification
of oncogenicity:
None
Review status:
(0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided
Record status:
current
Accession:
RCV000769512.6

Allele description [Variation Report for NM_001943.5(DSG2):c.2033G>C (p.Gly678Ala)]

NM_001943.5(DSG2):c.2033G>C (p.Gly678Ala)

Genes:
DSG2-AS1:DSG2 antisense RNA 1 [Gene - HGNC]
DSG2:desmoglein 2 [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
18q12.1
Genomic location:
Preferred name:
NM_001943.5(DSG2):c.2033G>C (p.Gly678Ala)
HGVS:
  • NC_000018.10:g.31542551G>C
  • NG_007072.3:g.49310G>C
  • NM_001943.5:c.2033G>CMANE SELECT
  • NP_001934.2:p.Gly678Ala
  • LRG_397t1:c.2033G>C
  • LRG_397:g.49310G>C
  • NC_000018.9:g.29122514G>C
  • NM_001943.3:c.2033G>C
  • NM_001943.4:c.2033G>C
Protein change:
G678A
Links:
dbSNP: rs372494397
NCBI 1000 Genomes Browser:
rs372494397
Molecular consequence:
  • NM_001943.5:c.2033G>C - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:
Cardiomyopathy (CMYO)
Synonyms:
Cardiomyopathies
Identifiers:
MONDO: MONDO:0004994; MedGen: C0878544; Human Phenotype Ontology: HP:0001638

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Assertion and evidence details

Help
Submission AccessionSubmitterReview Status
(Assertion method)		Clinical Significance
(Last evaluated)		OriginMethodCitations
SCV000900907CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario - Canadian Open Genetics Repository
criteria provided, single submitter

(ACMG Guidelines, 2015)		Uncertain significance
(May 18, 2016) 		germlineclinical testing

PubMed (1)
[See all records that cite this PMID]

SCV001342476Color Diagnostics, LLC DBA Color Health
criteria provided, single submitter

(ACMG Guidelines, 2015)		Uncertain significance
(Nov 28, 2022) 		germlineclinical testing

PubMed (5)
[See all records that cite these PMIDs]

Help

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineunknownnot providednot providednot providednot providednot providedclinical testing

Citations

PubMed

Compound and digenic heterozygosity predicts lifetime arrhythmic outcome and sudden cardiac death in desmosomal gene-related arrhythmogenic right ventricular cardiomyopathy.

Rigato I, Bauce B, Rampazzo A, Zorzi A, Pilichou K, Mazzotti E, Migliore F, Marra MP, Lorenzon A, De Bortoli M, Calore M, Nava A, Daliento L, Gregori D, Iliceto S, Thiene G, Basso C, Corrado D.

Circ Cardiovasc Genet. 2013 Dec;6(6):533-42. doi: 10.1161/CIRCGENETICS.113.000288. Epub 2013 Sep 26.

PubMed [citation]
PMID:
24070718

Molecular analysis of sarcomeric and non-sarcomeric genes in patients with hypertrophic cardiomyopathy.

Bottillo I, D'Angelantonio D, Caputo V, Paiardini A, Lipari M, De Bernardo C, Giannarelli D, Pizzuti A, Majore S, Castori M, Zachara E, Re F, Grammatico P.

Gene. 2016 Feb 15;577(2):227-35. doi: 10.1016/j.gene.2015.11.048. Epub 2015 Dec 2.

PubMed [citation]
PMID:
26656175
See all PubMed Citations (5)

Details of each submission

From CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario - Canadian Open Genetics Repository, SCV000900907.1

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (1)
#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineunknownnot providednot providednot providednot providednot providednot providednot provided

From Color Diagnostics, LLC DBA Color Health, SCV001342476.3

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (5)

Description

This missense variant replaces glycine with alanine at codon 678 of the DSG2 protein. Computational prediction is inconclusive regarding the impact of this variant on protein structure and function (internally defined REVEL score threshold 0.5 < inconclusive < 0.7, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has been reported in several individuals affected with arrhythmogenic cardiomyopathy (PMID 24070718, 32102357), in an individual affected with hypertrophic cardiomyopathy (PMID: 26656175), and in an individual affected with dilated cardiomyopathy and ventricular tachycardia (PMID: 33552729). This variant has also been identified in 13/280686 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineunknownnot providednot providednot providednot providednot providednot providednot provided

Last Updated: Sep 29, 2024