rs138582560
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2PP3BS1_Supporting
The NM_002109.6(HARS1):c.382C>T(p.Arg128Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000418 in 1,594,074 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 Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_002109.6 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 2 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000289 AC: 44AN: 152184Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.000256 AC: 64AN: 249748Hom.: 0 AF XY: 0.000193 AC XY: 26AN XY: 135050
GnomAD4 exome AF: 0.000431 AC: 622AN: 1441772Hom.: 0 Cov.: 26 AF XY: 0.000401 AC XY: 288AN XY: 718800
GnomAD4 genome AF: 0.000289 AC: 44AN: 152302Hom.: 0 Cov.: 32 AF XY: 0.000255 AC XY: 19AN XY: 74466
ClinVar
Submissions by phenotype
not provided Uncertain:5
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In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; In silico analysis is inconclusive as to whether the variant alters gene splicing. In the absence of RNA/functional studies, the actual effect of this sequence change is unknown.; Has not been previously published as pathogenic or benign to our knowledge -
HARS1: PM2:Supporting, PP3 -
Usher syndrome type 3B Uncertain:1
This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 128 of the HARS protein (p.Arg128Cys). This variant is present in population databases (rs138582560, gnomAD 0.05%). This variant has not been reported in the literature in individuals affected with HARS-related conditions. ClinVar contains an entry for this variant (Variation ID: 351240). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt HARS protein function with a positive predictive value of 80%. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. 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. -
not specified Benign:1
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at