rs77445784

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_004415.4(DSP):​c.105G>A​(p.Gly35Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00785 in 1,584,904 control chromosomes in the GnomAD database, including 62 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0058 ( 4 hom., cov: 33)
Exomes 𝑓: 0.0081 ( 58 hom. )

Consequence

DSP
NM_004415.4 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:19

Conservation

PhyloP100: -0.489
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]
DSP-AS1 (HGNC:56039): (DSP antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.5).
BP6
Variant 6-7542020-G-A is Benign according to our data. Variant chr6-7542020-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 36016.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr6-7542020-G-A is described in Lovd as [Benign]. Variant chr6-7542020-G-A is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=-0.489 with no splicing effect.
BS1
Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.00575 (876/152312) while in subpopulation AMR AF= 0.0106 (163/15308). AF 95% confidence interval is 0.00931. There are 4 homozygotes in gnomad4. There are 405 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 4 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DSPNM_004415.4 linkc.105G>A p.Gly35Gly synonymous_variant Exon 1 of 24 ENST00000379802.8 NP_004406.2 P15924-1B4DKX6

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DSPENST00000379802.8 linkc.105G>A p.Gly35Gly synonymous_variant Exon 1 of 24 1 NM_004415.4 ENSP00000369129.3 P15924-1

Frequencies

GnomAD3 genomes
AF:
0.00576
AC:
877
AN:
152194
Hom.:
4
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00176
Gnomad AMI
AF:
0.00658
Gnomad AMR
AF:
0.0107
Gnomad ASJ
AF:
0.00115
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00235
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.00870
Gnomad OTH
AF:
0.00478
GnomAD3 exomes
AF:
0.00530
AC:
1010
AN:
190676
Hom.:
3
AF XY:
0.00528
AC XY:
546
AN XY:
103492
show subpopulations
Gnomad AFR exome
AF:
0.00211
Gnomad AMR exome
AF:
0.00493
Gnomad ASJ exome
AF:
0.00114
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000823
Gnomad FIN exome
AF:
0.00179
Gnomad NFE exome
AF:
0.00939
Gnomad OTH exome
AF:
0.00707
GnomAD4 exome
AF:
0.00807
AC:
11562
AN:
1432592
Hom.:
58
Cov.:
32
AF XY:
0.00777
AC XY:
5521
AN XY:
710218
show subpopulations
Gnomad4 AFR exome
AF:
0.00177
Gnomad4 AMR exome
AF:
0.00536
Gnomad4 ASJ exome
AF:
0.00157
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000730
Gnomad4 FIN exome
AF:
0.00257
Gnomad4 NFE exome
AF:
0.00963
Gnomad4 OTH exome
AF:
0.00763
GnomAD4 genome
AF:
0.00575
AC:
876
AN:
152312
Hom.:
4
Cov.:
33
AF XY:
0.00544
AC XY:
405
AN XY:
74480
show subpopulations
Gnomad4 AFR
AF:
0.00176
Gnomad4 AMR
AF:
0.0106
Gnomad4 ASJ
AF:
0.00115
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.00235
Gnomad4 NFE
AF:
0.00870
Gnomad4 OTH
AF:
0.00473
Alfa
AF:
0.00558
Hom.:
0
Bravo
AF:
0.00645
Asia WGS
AF:
0.000577
AC:
3
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:19
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:8
-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

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

- -

-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Sep 04, 2017
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

p.Gly35Gly in exon 1 of DSP: This variant is not expected to have clinical signi ficance because it does not alter an amino acid residue and is not located withi n the splice consensus sequence. It has been identified in 1.6% (293/18358) of E uropean chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broad institute.org; dbSNP rs77445784). -

Feb 17, 2025
Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

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

- -

Feb 06, 2014
Eurofins Ntd Llc (ga)
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Benign:4
-
Breakthrough Genomics, Breakthrough Genomics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Sep 03, 2024
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

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

- -

Mar 01, 2025
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

DSP: BP4, BP7, BS2 -

Cardiomyopathy Benign:2
May 13, 2015
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Mar 14, 2018
Color Diagnostics, LLC DBA Color Health
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

- -

Lethal acantholytic epidermolysis bullosa Benign:1
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Woolly hair-skin fragility syndrome Benign:1
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Arrhythmogenic right ventricular dysplasia 8 Benign:1
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Woolly hair-skin fragility syndrome;C1843896:Arrhythmogenic right ventricular dysplasia 8;C1852127:Keratosis palmoplantaris striata 2;C1854063:Arrhythmogenic cardiomyopathy with wooly hair and keratoderma;C1864826:Lethal acantholytic epidermolysis bullosa;C4014393:Cardiomyopathy, dilated, with wooly hair, keratoderma, and tooth agenesis Benign:1
Jul 19, 2021
Fulgent Genetics, Fulgent Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.50
CADD
Benign
9.7
DANN
Benign
0.96
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.6

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: rs77445784; hg19: chr6-7542253; API