rs148341409

Positions:

chr6-56636571-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_001374736.1(DST):c.3046A>G(p.Thr1016Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,613,032 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

DST
NM_001374736.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.461

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 Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), DST. . Gene score misZ 2.2208 (greater than the threshold 3.09). Trascript score misZ 3.9149 (greater than threshold 3.09). GenCC has associacion of gene with hereditary sensory and autonomic neuropathy type 6, epidermolysis bullosa simplex 3, localized or generalized intermediate, with BP230 deficiency.

BP4

Computational evidence support a benign effect (MetaRNN=0.072998375).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DST	NM_001374736.1 linkuse as main transcript	c.3046A>G	p.Thr1016Ala	missense_variant	23/104	ENST00000680361.1	NP_001361665.1
DST	NM_001723.7 linkuse as main transcript	c.1435A>G	p.Thr479Ala	missense_variant	9/24	ENST00000370765.11	NP_001714.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DST	ENST00000680361.1 linkuse as main transcript	c.3046A>G	p.Thr1016Ala	missense_variant	23/104		NM_001374736.1	ENSP00000505098
DST	ENST00000370765.11 linkuse as main transcript	c.1435A>G	p.Thr479Ala	missense_variant	9/24	1	NM_001723.7	ENSP00000359801		Q03001-3

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152158

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000797

AC:

AN:

251006

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135738

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1460874

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726838

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152158

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74338

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000285

Hom.:

Bravo

AF:

0.0000189

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

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

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Nov 01, 2022

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. ClinVar contains an entry for this variant (Variation ID: 541434). This variant has not been reported in the literature in individuals affected with DST-related conditions. This variant is present in population databases (rs148341409, gnomAD 0.002%). This sequence change replaces threonine, which is neutral and polar, with alanine, which is neutral and non-polar, at codon 479 of the DST protein (p.Thr479Ala). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Benign

-0.039

BayesDel_noAF

Benign

-0.28

CADD

Benign

DANN

Benign

0.67

DEOGEN2

Benign

0.025

.;.;.;.;T;.;T;.;T

Eigen

Benign

-0.81

Eigen_PC

Benign

-0.70

FATHMM_MKL

Benign

0.54

LIST_S2

Benign

0.81

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

M_CAP

Benign

0.021

MetaRNN

Benign

0.073

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

MetaSVM

Benign

-0.95

MutationAssessor

Benign

-0.13

.;.;.;N;.;.;.;.;.

PrimateAI

Benign

0.33

PROVEAN

Benign

-1.6

N;N;.;N;N;N;N;N;N

REVEL

Benign

0.14

Sift

Benign

0.67

T;T;.;T;T;T;T;T;T

Sift4G

Benign

0.36

.;.;.;.;.;T;T;T;T

Polyphen

0.0010

B;.;.;.;.;B;.;B;B

Vest4

0.20

MVP

0.55

MPC

0.12

ClinPred

0.015

GERP RS

1.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

gMVP

0.16

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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