6-56640028-T-G

Variant names:

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BS1BS2

The NM_001374736.1(DST):c.2520A>C(p.Ser840Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00106 in 1,614,132 control chromosomes in the GnomAD database, including 9 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. S840S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0059 ( 4 hom., cov: 32)

Exomes 𝑓: 0.00056 ( 5 hom. )

Consequence

DST
NM_001374736.1 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 0.868

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

hereditary sensory and autonomic neuropathy type 6
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: Orphanet, Ambry Genetics, G2P, ClinGen, Labcorp Genetics (formerly Invitae)
epidermolysis bullosa simplex 3, localized or generalized intermediate, with BP230 deficiency
Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: PanelApp Australia, Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Orphanet

DST links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -14 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.64).

BP6

Variant 6-56640028-T-G is Benign according to our data. Variant chr6-56640028-T-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 357613.We mark this variant Likely_benign, oryginal submission is: [Conflicting_classifications_of_pathogenicity].

BP7

Synonymous conserved (PhyloP=0.868 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00586 (893/152338) while in subpopulation AFR AF = 0.0205 (853/41576). AF 95% confidence interval is 0.0194. There are 4 homozygotes in GnomAd4. There are 431 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 4 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DST	NM_001374736.1 link	c.2520A>C	p.Ser840Ser	synonymous_variant	Exon 19 of 104	ENST00000680361.1	NP_001361665.1
DST	NM_001723.7 link	c.909A>C	p.Ser303Ser	synonymous_variant	Exon 5 of 24	ENST00000370765.11	NP_001714.1	Q03001-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DST	ENST00000680361.1 link	c.2520A>C	p.Ser840Ser	synonymous_variant	Exon 19 of 104		NM_001374736.1	ENSP00000505098.1		A0A7P0T890
DST	ENST00000370765.11 link	c.909A>C	p.Ser303Ser	synonymous_variant	Exon 5 of 24	1	NM_001723.7	ENSP00000359801.6		Q03001-3

Frequencies

GnomAD3 genomes

AF:

0.00583

AC:

887

AN:

152220

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0204

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00157

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:

0.000132

Gnomad OTH

AF:

0.00334

GnomAD2 exomes

AF:

0.00152

AC:

382

AN:

250638

AF XY:

0.00107

show subpopulations

Gnomad AFR exome

AF:

0.0219

Gnomad AMR exome

AF:

0.000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000793

Gnomad OTH exome

AF:

0.000656

GnomAD4 exome

AF:

0.000559

AC:

817

AN:

1461794

Hom.:

Cov.:

AF XY:

0.000457

AC XY:

332

AN XY:

727190

show subpopulations

African (AFR)

AF:

0.0201

AC:

674

AN:

33478

American (AMR)

AF:

0.000716

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39686

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53402

Middle Eastern (MID)

AF:

0.000868

AC:

AN:

5758

European-Non Finnish (NFE)

AF:

0.0000396

AC:

AN:

1111970

Other (OTH)

AF:

0.000993

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.454

Heterozygous variant carriers

133

178

222

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00586

AC:

893

AN:

152338

Hom.:

Cov.:

AF XY:

0.00579

AC XY:

431

AN XY:

74498

show subpopulations

African (AFR)

AF:

0.0205

AC:

853

AN:

41576

American (AMR)

AF:

0.00157

AC:

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5196

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000132

AC:

AN:

68026

Other (OTH)

AF:

0.00331

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

121

162

202

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00217

Hom.:

Bravo

AF:

0.00652

Asia WGS

AF:

0.00173

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Hereditary sensory and autonomic neuropathy type 6

Uncertain:1

Jun 14, 2016

Illumina Laboratory Services, Illumina

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

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

Benign:1

Jan 27, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: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

-0.64

CADD

Benign

7.7

(source)

DANN

Benign

0.69

PhyloP100

0.87

Mutation Taster

=99/1

polymorphism

(source)

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

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6-56640028-T-G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over