rs989894169
Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 6P and 2B. PM1PM5PP3_ModerateBP6BS2_Supporting
The NM_145239.3(PRRT2):c.923G>A(p.Arg308His) variant causes a missense change. The variant allele was found at a frequency of 0.0000118 in 1,610,168 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). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R308C) has been classified as Likely pathogenic.
Frequency
Consequence
NM_145239.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 4 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
PRRT2 | NM_145239.3 | c.923G>A | p.Arg308His | missense_variant | 3/4 | ENST00000358758.12 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
PRRT2 | ENST00000358758.12 | c.923G>A | p.Arg308His | missense_variant | 3/4 | 1 | NM_145239.3 | P1 | |
MVP-DT | ENST00000569039.5 | n.246-4203C>T | intron_variant, non_coding_transcript_variant | 2 |
Frequencies
GnomAD3 genomes ? AF: 0.0000131 AC: 2AN: 152100Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000324 AC: 8AN: 246706Hom.: 0 AF XY: 0.00000748 AC XY: 1AN XY: 133720
GnomAD4 exome AF: 0.0000117 AC: 17AN: 1458068Hom.: 0 Cov.: 35 AF XY: 0.00000827 AC XY: 6AN XY: 725404
GnomAD4 genome ? AF: 0.0000131 AC: 2AN: 152100Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74296
ClinVar
Submissions by phenotype
Episodic kinesigenic dyskinesia Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Aug 10, 2023 | This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 308 of the PRRT2 protein (p.Arg308His). This variant is present in population databases (no rsID available, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with PRRT2-related conditions. ClinVar contains an entry for this variant (Variation ID: 404416). 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 PRRT2 protein function. 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 provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Jul 25, 2019 | In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Missense variant in a gene in which most reported pathogenic variants are truncating/loss-of-function; Has not been previously published as pathogenic or benign to our knowledge - |
Inborn genetic diseases Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Ambry Genetics | May 04, 2020 | 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