rs202138002
Variant summary
Our verdict is Pathogenic. Variant got 12 ACMG points: 16P and 4B. PS1PP3_StrongPP5_Very_StrongBS2
The NM_170682.4(P2RX2):c.1057G>A(p.Gly353Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000102 in 1,573,460 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 Pathogenic (★★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Pathogenic in Lovd.
Frequency
Consequence
NM_170682.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 12 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152160Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000181 AC: 4AN: 221582Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 118944
GnomAD4 exome AF: 0.0000106 AC: 15AN: 1421182Hom.: 0 Cov.: 34 AF XY: 0.00000427 AC XY: 3AN XY: 702392
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152278Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74438
ClinVar
Submissions by phenotype
not provided Pathogenic:2
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This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 353 of the P2RX2 protein (p.Gly353Arg). This variant is present in population databases (rs202138002, gnomAD 0.005%). This missense change has been observed in individual(s) with autosomal dominant nonsyndromic deafness (PMID: 24211385). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 987153). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt P2RX2 protein function with a positive predictive value of 80%. Experimental studies have shown that this missense change affects P2RX2 function (PMID: 31636190). For these reasons, this variant has been classified as Pathogenic. -
Autosomal dominant nonsyndromic hearing loss 41 Pathogenic:1
The variant is observed at an extremely low frequency in the gnomAD v2.1.1 dataset (total allele frequency: 0.002%). Predicted Consequence/Location: Missense changes are a common disease-causing mechanism. In silico tool predictions suggest damaging effect of the variant on gene or gene product [REVEL: 0.81 (>=0.6, sensitivity 0.68 and specificity 0.92); 3Cnet: 0.79 (>=0.6, sensitivity 0.72 and precision 0.9)]. Same nucleotide change resulting in same amino acid change has been previously reported as pathogenic/likely pathogenic with strong evidence (ClinVar ID: VCV000987153 /PMID: 24211385 /3billion dataset). Therefore, this variant is classified as Likely pathogenic according to the recommendation of ACMG/AMP guideline. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at