6-56627992-T-A

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_001374736.1(DST):​c.4638+7A>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000568 in 1,613,418 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00045 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00058 ( 0 hom. )

Consequence

DST
NM_001374736.1 splice_region, intron

Scores

2
Splicing: ADA: 0.00007454
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: 0.0730
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant 6-56627992-T-A is Benign according to our data. Variant chr6-56627992-T-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 357594.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}. Variant chr6-56627992-T-A is described in Lovd as [Likely_benign].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DSTNM_001374736.1 linkuse as main transcriptc.4638+7A>T splice_region_variant, intron_variant ENST00000680361.1 NP_001361665.1
DSTNM_001723.7 linkuse as main transcriptc.3027+7A>T splice_region_variant, intron_variant ENST00000370765.11 NP_001714.1 Q03001-3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DSTENST00000680361.1 linkuse as main transcriptc.4638+7A>T splice_region_variant, intron_variant NM_001374736.1 ENSP00000505098.1 A0A7P0T890
DSTENST00000370765.11 linkuse as main transcriptc.3027+7A>T splice_region_variant, intron_variant 1 NM_001723.7 ENSP00000359801.6 Q03001-3

Frequencies

GnomAD3 genomes
AF:
0.000453
AC:
69
AN:
152174
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000217
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.000809
Gnomad OTH
AF:
0.000955
GnomAD3 exomes
AF:
0.000470
AC:
118
AN:
251304
Hom.:
0
AF XY:
0.000434
AC XY:
59
AN XY:
135846
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.000752
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:
0.000722
Gnomad OTH exome
AF:
0.00130
GnomAD4 exome
AF:
0.000580
AC:
847
AN:
1461126
Hom.:
0
Cov.:
31
AF XY:
0.000587
AC XY:
427
AN XY:
726882
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.000760
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:
0.000697
Gnomad4 OTH exome
AF:
0.000580
GnomAD4 genome
AF:
0.000453
AC:
69
AN:
152292
Hom.:
0
Cov.:
32
AF XY:
0.000336
AC XY:
25
AN XY:
74470
show subpopulations
Gnomad4 AFR
AF:
0.000217
Gnomad4 AMR
AF:
0.000196
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000809
Gnomad4 OTH
AF:
0.000945
Alfa
AF:
0.000603
Hom.:
0
Bravo
AF:
0.000446
EpiCase
AF:
0.000545
EpiControl
AF:
0.000533

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:4
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Benign:3
Likely benign, no assertion criteria providedclinical testingClinical Genetics, Academic Medical Center-- -
Likely benign, no assertion criteria providedclinical testingGenome Diagnostics Laboratory, University Medical Center Utrecht-- -
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenNov 01, 2024DST: BP4 -
Hereditary sensory and autonomic neuropathy type 6 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 14, 2016- -
Hereditary sensory and autonomic neuropathy type 6;C3809470:Epidermolysis bullosa simplex 3, localized or generalized intermediate, with BP230 deficiency Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 10, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
2.6
DANN
Benign
0.58

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000075
dbscSNV1_RF
Benign
0.0020
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: rs185349093; hg19: chr6-56492790; API