rs184154918

Variant summary

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

The NM_004415.4(DSP):​c.3923G>A​(p.Arg1308Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000273 in 1,613,998 control chromosomes in the GnomAD database, including 2 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 Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1308W) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00051 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00025 ( 2 hom. )

Consequence

DSP
NM_004415.4 missense

Scores

2
16

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:20

Conservation

PhyloP100: 3.36
Variant links:
Genes affected
DSP (HGNC:3052): (desmoplakin) This gene encodes a protein that anchors intermediate filaments to desmosomal plaques and forms an obligate component of functional desmosomes. Mutations in this gene are the cause of several cardiomyopathies and keratodermas, including skin fragility-woolly hair syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

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=0.0070706904).
BP6
Variant 6-7580113-G-A is Benign according to our data. Variant chr6-7580113-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 178028.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr6-7580113-G-A is described in Lovd as [Likely_benign]. Variant chr6-7580113-G-A is described in Lovd as [Benign].
BS1
Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.000506 (77/152230) while in subpopulation EAS AF= 0.0131 (68/5182). AF 95% confidence interval is 0.0106. There are 0 homozygotes in gnomad4. There are 42 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 2 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DSPNM_004415.4 linkc.3923G>A p.Arg1308Gln missense_variant Exon 23 of 24 ENST00000379802.8 NP_004406.2 P15924-1B4DKX6
DSPNM_001319034.2 linkc.3923G>A p.Arg1308Gln missense_variant Exon 23 of 24 NP_001305963.1 P15924-3B4DKX6
DSPNM_001008844.3 linkc.3582+341G>A intron_variant Intron 23 of 23 NP_001008844.1 P15924-2B4DKX6Q4LE79

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DSPENST00000379802.8 linkc.3923G>A p.Arg1308Gln missense_variant Exon 23 of 24 1 NM_004415.4 ENSP00000369129.3 P15924-1
DSPENST00000418664.2 linkc.3582+341G>A intron_variant Intron 23 of 23 1 ENSP00000396591.2 P15924-2
DSPENST00000710359.1 linkc.3923G>A p.Arg1308Gln missense_variant Exon 23 of 24 ENSP00000518230.1

Frequencies

GnomAD3 genomes
AF:
0.000506
AC:
77
AN:
152112
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.0131
Gnomad SAS
AF:
0.000208
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.00128
AC:
321
AN:
250626
Hom.:
2
AF XY:
0.00117
AC XY:
159
AN XY:
135600
show subpopulations
Gnomad AFR exome
AF:
0.000186
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0170
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000177
Gnomad OTH exome
AF:
0.000490
GnomAD4 exome
AF:
0.000249
AC:
364
AN:
1461768
Hom.:
2
Cov.:
32
AF XY:
0.000248
AC XY:
180
AN XY:
727160
show subpopulations
Gnomad4 AFR exome
AF:
0.000119
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00824
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.000497
GnomAD4 genome
AF:
0.000506
AC:
77
AN:
152230
Hom.:
0
Cov.:
32
AF XY:
0.000564
AC XY:
42
AN XY:
74426
show subpopulations
Gnomad4 AFR
AF:
0.000120
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.0131
Gnomad4 SAS
AF:
0.000208
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000428
Hom.:
1
Bravo
AF:
0.000604
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.00121
AC:
147
Asia WGS
AF:
0.00231
AC:
9
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:20
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:6
-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Nov 06, 2014
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

p.Arg1308Gln in exon 23 of DSP: This variant is not expected to have clinical si gnificance because it has been identified in 1.5% (6/394) of Han Chinese chromos omes by the 1000 Genomes Project (dbSNP rs184154918) and in 1.7% (145/8730) of E ast Asian chromosomes by the Exome Aggregation Consortium (ExAC; http://exac.bro adinstitute.org). -

-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Jun 28, 2017
Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Clinical Genetics, Academic Medical Center
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

not provided Benign:5
Aug 22, 2017
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: The c.3923G>A (p.Arg1308Gln) in the DSP gene is a missense change that involves the alteration of a non- conserved nucleotide and 5/5 in silico tools predict benign outcome. The variant was observed in the large and broad cohorts of the ExAC project at an allele frequency of 0.001212 (146/ 120504 chrs tested), predominantly in individuals of East Asian descent (0.01648; 142/ 8618 chrs, including 1 homozygotes). The latter frequency exceeds the maximal expected allele frequency for a pathogenic variant in this gene (0.00001). Lastly, several reputable databases/diagnostic centers classified the variant of interest as Benign/Likely Benign. Taking together, the variant was classified as Benign. -

Mar 03, 2015
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 26585738) -

-
Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Jul 01, 2022
CeGaT Center for Human Genetics Tuebingen
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

DSP: BP4, BS1, BS2 -

-
Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Cardiomyopathy Benign:2
Mar 08, 2018
Color Diagnostics, LLC DBA Color Health
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Nov 28, 2017
CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Arrhythmogenic right ventricular dysplasia 8;C1854063:Arrhythmogenic cardiomyopathy with wooly hair and keratoderma Benign:1
Feb 04, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Arrhythmogenic right ventricular cardiomyopathy Benign:1
Jun 14, 2016
Illumina Laboratory Services, Illumina
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Lethal acantholytic epidermolysis bullosa Benign:1
Jun 14, 2016
Illumina Laboratory Services, Illumina
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Woolly hair-skin fragility syndrome Benign:1
Jun 14, 2016
Illumina Laboratory Services, Illumina
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hypertrophic cardiomyopathy;C0878544:Cardiomyopathy Benign:1
Jul 06, 2017
Center for Advanced Laboratory Medicine, UC San Diego Health, University of California San Diego
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Epidermolysis bullosa simplex due to plakophilin deficiency Benign:1
Jun 14, 2016
Illumina Laboratory Services, Illumina
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Cardiovascular phenotype Benign:1
May 23, 2016
Ambry Genetics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.088
BayesDel_addAF
Benign
-0.31
T
BayesDel_noAF
Benign
-0.21
CADD
Benign
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.20
T
Eigen
Benign
-0.0068
Eigen_PC
Benign
0.0071
FATHMM_MKL
Benign
0.71
D
LIST_S2
Uncertain
0.89
D
MetaRNN
Benign
0.0071
T
MetaSVM
Benign
-0.34
T
MutationAssessor
Benign
1.1
L
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-0.61
N
REVEL
Benign
0.28
Sift
Benign
0.17
T
Sift4G
Benign
0.40
T
Polyphen
0.80
P
Vest4
0.59
MVP
0.72
MPC
0.44
ClinPred
0.027
T
GERP RS
5.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.065
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

LitVar

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

Other links and lift over

dbSNP: rs184154918; hg19: chr6-7580346; COSMIC: COSV101131190; API