rs759049357
Positions:
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_001723.7(DST):āc.7940A>Gā(p.Tyr2647Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,766 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā ).
Frequency
Genomes: not found (cov: 32)
Exomes š: 0.0000027 ( 0 hom. )
Consequence
DST
NM_001723.7 missense
NM_001723.7 missense
Scores
1
8
5
Clinical Significance
Conservation
PhyloP100: 3.41
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 2 ACMG points.
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.7940A>G | p.Tyr2647Cys | missense_variant | 24/24 | ENST00000370765.11 | |
DST | NM_001374736.1 | c.4930-1043A>G | intron_variant | ENST00000680361.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
DST | ENST00000370765.11 | c.7940A>G | p.Tyr2647Cys | missense_variant | 24/24 | 1 | NM_001723.7 | ||
DST | ENST00000680361.1 | c.4930-1043A>G | intron_variant | NM_001374736.1 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome AF: 0.00000274 AC: 4AN: 1461766Hom.: 0 Cov.: 34 AF XY: 0.00000275 AC XY: 2AN XY: 727184
GnomAD4 exome
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4
AN:
1461766
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Cov.:
34
AF XY:
AC XY:
2
AN XY:
727184
Gnomad4 AFR exome
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GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
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 | Dec 13, 2017 | This variant is not present in population databases (ExAC no frequency). This sequence change replaces tyrosine with cysteine at codon 2647 of the DST protein (p.Tyr2647Cys). The tyrosine residue is weakly conserved and there is a large physicochemical difference between tyrosine and cysteine. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C15"). 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. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Uncertain
T
BayesDel_noAF
Benign
CADD
Benign
DANN
Uncertain
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
LIST_S2
Benign
T
M_CAP
Benign
T
MetaRNN
Uncertain
D
MetaSVM
Uncertain
T
PROVEAN
Benign
N
REVEL
Benign
Sift
Uncertain
D
Sift4G
Pathogenic
D
Polyphen
D
Vest4
MutPred
Loss of phosphorylation at S2648 (P = 0.0747);
MVP
ClinPred
T
GERP RS
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at