rs397516928

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_004415.4(DSP):c.2866A>T(p.Asn956Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000267 in 1,611,160 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N956S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

DSP
NM_004415.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:2

Conservation

PhyloP100: 1.52

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.015366048).

BP6

Variant 6-7577031-A-T is Benign according to our data. Variant chr6-7577031-A-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 44887.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=3, Likely_benign=2}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
DSP	NM_004415.4 linkuse as main transcript	c.2866A>T	p.Asn956Tyr	missense_variant	20/24	ENST00000379802.8
DSP	NM_001319034.2 linkuse as main transcript	c.2866A>T	p.Asn956Tyr	missense_variant	20/24
DSP	NM_001008844.3 linkuse as main transcript	c.2866A>T	p.Asn956Tyr	missense_variant	20/24

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DSP	ENST00000379802.8 linkuse as main transcript	c.2866A>T	p.Asn956Tyr	missense_variant	20/24	1	NM_004415.4	P2	P15924-1
DSP	ENST00000418664.2 linkuse as main transcript	c.2866A>T	p.Asn956Tyr	missense_variant	20/24	1		A2	P15924-2
DSP	ENST00000710359.1 linkuse as main transcript	c.2866A>T	p.Asn956Tyr	missense_variant	20/24			A2

Frequencies

GnomAD3 genomes

AF:

0.0000657

AC:

AN:

152234

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00173

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000101

AC:

AN:

248532

Hom.:

AF XY:

0.000127

AC XY:

AN XY:

134200

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000295

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00131

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000226

AC:

AN:

1458808

Hom.:

Cov.:

AF XY:

0.0000276

AC XY:

AN XY:

725416

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000225

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000404

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.00e-7

Gnomad4 OTH exome

AF:

0.000249

GnomAD4 genome

AF:

0.0000656

AC:

AN:

152352

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74504

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00173

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.0000693

Hom.:

Bravo

AF:

0.0000453

ExAC

AF:

0.000107

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Jan 20, 2012

Variant classified as Uncertain Significance - Favor Benign. The Asn956Tyr varia nt (DSP) has been identifed in 2/1054 reportedly healthy control chromosomes (Ka pplinger 2011, Wei_2011). Computational analyses (biochemical amino acid propert ies, conservation, AlignGVGD, PolyPhen2, and SIFT) suggest that this variant may not impact the protein, though this information is not predictive enough to rul e out pathogenicity. Although this data suggests that the Asn956Tyr variant may be benign, additional information is needed to fully assess its clinical signifi cance. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Oct 24, 2023

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 35628349, 22216297, 21636032, 24503780) -

Cardiovascular phenotype

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 07, 2021

The c.2866A>T (p.N956Y) alteration is located in exon 20 (coding exon 20) of the DSP gene. This alteration results from a A to T substitution at nucleotide position 2866, causing the asparagine (N) at amino acid position 956 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Arrhythmogenic right ventricular dysplasia 8;C1854063:Arrhythmogenic cardiomyopathy with wooly hair and keratoderma

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Invitae

Jan 08, 2024

- -

Cardiomyopathy

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Color Diagnostics, LLC DBA Color Health

Dec 30, 2019

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.39

BayesDel_noAF

Benign

-0.38

Cadd

Uncertain

Dann

Uncertain

0.99

DEOGEN2

Uncertain

0.76

D;.

Eigen

Benign

-0.16

Eigen_PC

Benign

0.042

FATHMM_MKL

Uncertain

0.82

LIST_S2

Uncertain

0.87

D;D

M_CAP

Benign

0.0083

MetaRNN

Benign

0.015

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.81

L;L

MutationTaster

Benign

0.94

N;N

PrimateAI

Uncertain

0.58

PROVEAN

Uncertain

-4.2

D;D

REVEL

Benign

0.12

Sift

Uncertain

0.024

D;D

Sift4G

Benign

0.073

T;T

Polyphen

0.019

B;.

Vest4

0.56

MutPred

0.33

Loss of ubiquitination at K959 (P = 0.0727);Loss of ubiquitination at K959 (P = 0.0727);

MVP

0.61

MPC

0.31

ClinPred

0.16

GERP RS

4.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.10

gMVP

0.32

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over