rs775286129
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Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PVS1_StrongPM2
The NM_001723.7(DST):āc.6906T>Gā(p.Tyr2302Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,614,078 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā ).
Frequency
Genomes: š 0.0000066 ( 0 hom., cov: 32)
Exomes š: 0.0000014 ( 0 hom. )
Consequence
DST
NM_001723.7 stop_gained
NM_001723.7 stop_gained
Scores
1
2
3
Clinical Significance
Conservation
PhyloP100: 1.65
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_pathogenic. Variant got 6 ACMG points.
PVS1
?
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. There are 4 pathogenic variants in the truncated region.
PM2
?
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
DST | NM_001723.7 | c.6906T>G | p.Tyr2302Ter | stop_gained | 24/24 | ENST00000370765.11 | |
DST | NM_001374736.1 | c.4930-2077T>G | intron_variant | ENST00000680361.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
DST | ENST00000370765.11 | c.6906T>G | p.Tyr2302Ter | stop_gained | 24/24 | 1 | NM_001723.7 | ||
DST | ENST00000680361.1 | c.4930-2077T>G | intron_variant | NM_001374736.1 |
Frequencies
GnomAD3 genomes ? AF: 0.00000657 AC: 1AN: 152202Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251352Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135852
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GnomAD4 exome AF: 0.00000137 AC: 2AN: 1461876Hom.: 0 Cov.: 34 AF XY: 0.00 AC XY: 0AN XY: 727240
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GnomAD4 genome ? AF: 0.00000657 AC: 1AN: 152202Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74350
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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 | Invitae | Jan 02, 2018 | Experimental studies and prediction algorithms are not available for this variant, and the functional significance of the deleted amino acids is currently unknown. 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. This variant has not been reported in the literature in individuals with DST-related disease. This variant is present in population databases (rs775286129, ExAC 0.01%). This sequence change results in a premature translational stop signal in the DST gene (p.Tyr2302*). While this is not anticipated to result in nonsense mediated decay, it is expected to delete the last 348 amino acids of the DST protein. - |
Computational scores
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Name
Calibrated prediction
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BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Benign
CADD
Benign
DANN
Uncertain
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Uncertain
D
Vest4
GERP RS
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at