rs727502958
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_001042702.5(PJVK):c.766A>C(p.Asn256His) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.00000558 in 1,613,048 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/23 in silico tools predict 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 Uncertain significance (★★).
Frequency
Consequence
NM_001042702.5 missense, splice_region
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 0 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000263 AC: 4AN: 152190Hom.: 1 Cov.: 32
GnomAD3 exomes AF: 0.00000401 AC: 1AN: 249424Hom.: 0 AF XY: 0.00000739 AC XY: 1AN XY: 135326
GnomAD4 exome AF: 0.00000342 AC: 5AN: 1460858Hom.: 0 Cov.: 30 AF XY: 0.00000550 AC XY: 4AN XY: 726766
GnomAD4 genome AF: 0.0000263 AC: 4AN: 152190Hom.: 1 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74350
ClinVar
Submissions by phenotype
not provided Uncertain:2
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
This sequence change replaces asparagine, which is neutral and polar, with histidine, which is basic and polar, at codon 256 of the DFNB59 protein (p.Asn256His). This variant is present in population databases (rs727502958, gnomAD 0.004%). This variant has not been reported in the literature in individuals affected with DFNB59-related conditions. ClinVar contains an entry for this variant (Variation ID: 163059). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). 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 Uncertain:1
The Asn256His variant in DFNB59 has not been previously reported in individuals with hearing loss or observed in large population studies. Computational analyse s (biochemical amino acid properties, conservation, AlignGVGD, PolyPhen2, and SI FT) do not provide strong support for or against an impact to the protein. In su mmary, additional data is needed to determine the clinical significance of this variant. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at