rs143101723

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 1P and 5B. PP2BP4_StrongBP6

The NM_001374736.1(DST):c.2042G>A(p.Arg681His) variant causes a missense change. The variant allele was found at a frequency of 0.0004 in 1,614,024 control chromosomes in the GnomAD database, including 2 homozygotes. 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. R681C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00059 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00038 ( 2 hom. )

Consequence

DST
NM_001374736.1 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 4.75

Variant links:

Genes affected

DST (HGNC:1090): (dystonin) This gene encodes a member of the plakin protein family of adhesion junction plaque proteins. Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene, but the full-length nature of some variants has not been defined. It has been reported that some isoforms are expressed in neural and muscle tissue, anchoring neural intermediate filaments to the actin cytoskeleton, and some isoforms are expressed in epithelial tissue, anchoring keratin-containing intermediate filaments to hemidesmosomes. Consistent with the expression, mice defective for this gene show skin blistering and neurodegeneration. [provided by RefSeq, Mar 2010]

DST links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PP2

Missense variant where missense usually causes diseases, DST

BP4

Computational evidence support a benign effect (MetaRNN=0.011086285).

BP6

Variant 6-56640591-C-T is Benign according to our data. Variant chr6-56640591-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 357619.We mark this variant Likely_benign, oryginal submissions are: {Benign=2, Uncertain_significance=2, Likely_benign=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
DST	NM_001374736.1 linkuse as main transcript	c.2042G>A	p.Arg681His	missense_variant	18/104	ENST00000680361.1
DST	NM_001723.7 linkuse as main transcript	c.431G>A	p.Arg144His	missense_variant	4/24	ENST00000370765.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DST	ENST00000680361.1 linkuse as main transcript	c.2042G>A	p.Arg681His	missense_variant	18/104		NM_001374736.1
DST	ENST00000370765.11 linkuse as main transcript	c.431G>A	p.Arg144His	missense_variant	4/24	1	NM_001723.7		Q03001-3

Frequencies

GnomAD3 genomes

AF:

0.000592

AC:

AN:

152138

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00183

Gnomad ASJ

AF:

0.0124

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000206

Gnomad OTH

AF:

0.00144

GnomAD3 exomes

AF:

0.000732

AC:

183

AN:

250034

Hom.:

AF XY:

0.000747

AC XY:

101

AN XY:

135240

show subpopulations

Gnomad AFR exome

AF:

0.000125

Gnomad AMR exome

AF:

0.000231

Gnomad ASJ exome

AF:

0.0138

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000169

Gnomad OTH exome

AF:

0.00230

GnomAD4 exome

AF:

0.000380

AC:

556

AN:

1461768

Hom.:

Cov.:

AF XY:

0.000400

AC XY:

291

AN XY:

727194

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000291

Gnomad4 ASJ exome

AF:

0.0132

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000113

Gnomad4 OTH exome

AF:

0.00116

GnomAD4 genome

AF:

0.000591

AC:

AN:

152256

Hom.:

Cov.:

AF XY:

0.000510

AC XY:

AN XY:

74440

show subpopulations

Gnomad4 AFR

AF:

0.0000481

Gnomad4 AMR

AF:

0.00183

Gnomad4 ASJ

AF:

0.0124

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000206

Gnomad4 OTH

AF:

0.00142

Alfa

AF:

0.000771

Hom.:

Bravo

AF:

0.000914

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.000535

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000273

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Jan 17, 2022

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Hereditary sensory and autonomic neuropathy type 6

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jun 14, 2016

- -

Hereditary sensory and autonomic neuropathy type 6;C3809470:Epidermolysis bullosa simplex 3, localized or generalized intermediate, with BP230 deficiency

Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Jan 16, 2024

- -

Inborn genetic diseases

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 01, 2019

This alteration is classified as likely 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. -

DST-related disorder

Benign:1

Benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Jan 13, 2020

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Uncertain

0.090

BayesDel_noAF

Pathogenic

0.16

Cadd

Pathogenic

Dann

Pathogenic

1.0

Eigen

Uncertain

0.45

Eigen_PC

Uncertain

0.53

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.94

D;D;D;D;D;D;D;D;D;D

M_CAP

Benign

0.035

MetaRNN

Benign

0.011

T;T;T;T;T;T;T;T;T;T

MetaSVM

Uncertain

0.14

PrimateAI

Uncertain

0.70

PROVEAN

Uncertain

-3.4

D;D;.;D;D;D;D;D;D;D

REVEL

Uncertain

0.56

Sift

Uncertain

0.0060

D;T;.;T;T;T;T;T;T;T

Polyphen

0.98

D;.;.;.;.;D;.;D;P;.

Vest4

0.34

MVP

0.87

MPC

0.16

ClinPred

0.051

GERP RS

5.7

gMVP

0.71

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