rs776786063
Positions:
Variant summary
Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP2
The NM_001374736.1(DST):āc.4852T>Cā(p.Tyr1618His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000329 in 1,612,874 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā ā ).
Frequency
Genomes: š 0.0000066 ( 0 hom., cov: 32)
Exomes š: 0.000036 ( 0 hom. )
Consequence
DST
NM_001374736.1 missense
NM_001374736.1 missense
Scores
6
6
2
Clinical Significance
Conservation
PhyloP100: 9.26
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 Uncertain_significance. Variant got 3 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
PP2
?
Missense variant where missense usually causes diseases, DST
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
DST | NM_001374736.1 | c.4852T>C | p.Tyr1618His | missense_variant | 36/104 | ENST00000680361.1 | |
DST | NM_001723.7 | c.3241T>C | p.Tyr1081His | missense_variant | 22/24 | ENST00000370765.11 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
DST | ENST00000680361.1 | c.4852T>C | p.Tyr1618His | missense_variant | 36/104 | NM_001374736.1 | |||
DST | ENST00000370765.11 | c.3241T>C | p.Tyr1081His | missense_variant | 22/24 | 1 | NM_001723.7 |
Frequencies
GnomAD3 genomes ? AF: 0.00000657 AC: 1AN: 152102Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000877 AC: 22AN: 250804Hom.: 0 AF XY: 0.000103 AC XY: 14AN XY: 135564
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GnomAD4 exome AF: 0.0000356 AC: 52AN: 1460772Hom.: 0 Cov.: 30 AF XY: 0.0000385 AC XY: 28AN XY: 726754
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GnomAD4 genome ? AF: 0.00000657 AC: 1AN: 152102Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74306
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
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 | Apr 19, 2022 | This sequence change replaces tyrosine, which is neutral and polar, with histidine, which is basic and polar, at codon 1081 of the DST protein (p.Tyr1081His). This variant is present in population databases (rs776786063, gnomAD 0.07%). This variant has not been reported in the literature in individuals affected with DST-related conditions. ClinVar contains an entry for this variant (Variation ID: 541448). 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 disruptive. 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. - |
Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Mar 11, 2020 | The p.Y1585H variant (also known as c.4753T>C), located in coding exon 35 of the DST gene, results from a T to C substitution at nucleotide position 4753. The tyrosine at codon 1585 is replaced by histidine, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Uncertain
T
BayesDel_noAF
Pathogenic
CADD
Benign
DANN
Uncertain
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Uncertain
D
LIST_S2
Uncertain
D;D;D;D;D;D;D;D;D
M_CAP
Benign
D
MetaRNN
Uncertain
D;D;D;D;D;D;D;D;D
MetaSVM
Benign
T
PrimateAI
Pathogenic
D
PROVEAN
Pathogenic
D;D;.;D;D;D;D;D;D
REVEL
Uncertain
Sift
Pathogenic
D;D;.;D;D;D;D;D;D
Polyphen
D;.;.;.;.;D;.;D;D
Vest4
MVP
MPC
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
gMVP
Splicing
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Calibrated prediction
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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