NM_001943.5(DSG2):c.45+1G>A AND Arrhythmogenic right ventricular cardiomyopathy, type 10

Clinical significance:Likely pathogenic (Last evaluated: Jun 12, 2018)

Review status:1 star out of maximum of 4 stars

criteria provided, single submitter

Based on:
1 submission [Details]
Record status:
current
Accession:
RCV000687934.1

Allele description [Variation Report for NM_001943.5(DSG2):c.45+1G>A]

NM_001943.5(DSG2):c.45+1G>A

Gene:
DSG2:desmoglein 2 [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
18q12.1
Genomic location:
Preferred name:
NM_001943.5(DSG2):c.45+1G>A
HGVS:
  • NC_000018.10:g.31498297G>A
  • NG_007072.3:g.5056G>A
  • NM_001943.5:c.45+1G>AMANE SELECT
  • LRG_397t1:c.45+1G>A
  • LRG_397:g.5056G>A
  • NC_000018.9:g.29078260G>A
  • NM_001943.3:c.45+1G>A
Links:
dbSNP: rs1568098570
NCBI 1000 Genomes Browser:
rs1568098570
Molecular consequence:
  • NM_001943.5:c.45+1G>A - splice donor variant - [Sequence Ontology: SO:0001575]

Condition(s)

Name:
Arrhythmogenic right ventricular cardiomyopathy, type 10 (ARVD10)
Synonyms:
ARRHYTHMOGENIC RIGHT VENTRICULAR DYSPLASIA, FAMILIAL, 10; Arrhythmogenic right ventricular dysplasia type 10; Arrhythmogenic Right Ventricular Dysplasia/Cardiomyopathy10
Identifiers:
MONDO: MONDO:0012434; MedGen: C1857777; OMIM: 610193

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
OriginMethodCitations
SCV000815527Invitaecriteria provided, single submitter
Likely pathogenic
(Jun 12, 2018)
germlineclinical testing

PubMed (3)
[See all records that cite these PMIDs]

Summary from all submissions

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

Citations

PubMed

Mutated desmoglein-2 proteins are incorporated into desmosomes and exhibit dominant-negative effects in arrhythmogenic right ventricular cardiomyopathy.

Rasmussen TB, Palmfeldt J, Nissen PH, Magnoni R, Dalager S, Jensen UB, Kim WY, Heickendorff L, Mølgaard H, Jensen HK, Baandrup UT, Bross P, Mogensen J.

Hum Mutat. 2013 May;34(5):697-705. doi: 10.1002/humu.22289. Epub 2013 Mar 11.

PubMed [citation]
PMID:
23381804

Mechanistic basis of desmosome-targeted diseases.

Al-Jassar C, Bikker H, Overduin M, Chidgey M.

J Mol Biol. 2013 Nov 1;425(21):4006-22. doi: 10.1016/j.jmb.2013.07.035. Epub 2013 Aug 2. Review.

PubMed [citation]
PMID:
23911551
PMCID:
PMC3807649
See all PubMed Citations (3)

Details of each submission

From Invitae, SCV000815527.1

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (3)

Description

This sequence change affects a donor splice site in intron 1 of the DSG2 gene. It is expected to disrupt RNA splicing and likely results in an absent or disrupted protein product. While this variant is not present in population databases, the frequency information is unreliable, as metrics indicate poor data quality at this position in the ExAC database. This variant has not been reported in the literature in individuals with DSG2-related disease. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site, but this prediction has not been confirmed by published transcriptional studies. Donor and acceptor splice site variants typically lead to a loss of protein function (PMID: 16199547), and loss-of-function variants in DSG2 are known to be pathogenic (PMID: 23381804, 23911551). In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic.

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

Last Updated: Jan 25, 2021

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