rs138932463
Variant summary
Our verdict is Likely benign. Variant got -1 ACMG points: 1P and 2B. PP2BP4_Moderate
The NM_000540.3(RYR1):c.12629A>G(p.Lys4210Arg) variant causes a missense change. The variant allele was found at a frequency of 0.0000859 in 1,582,528 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_000540.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -1 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000723 AC: 11AN: 152248Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000993 AC: 20AN: 201352Hom.: 0 AF XY: 0.0000736 AC XY: 8AN XY: 108674
GnomAD4 exome AF: 0.0000874 AC: 125AN: 1430280Hom.: 0 Cov.: 31 AF XY: 0.0000706 AC XY: 50AN XY: 708578
GnomAD4 genome AF: 0.0000723 AC: 11AN: 152248Hom.: 0 Cov.: 32 AF XY: 0.0000538 AC XY: 4AN XY: 74392
ClinVar
Submissions by phenotype
not provided Uncertain:3
Reported previously in association with RYR1-related disorders in patients harboring additional RYR1 variants (Snoeck et al., 2015; Rokach et al., 2015); In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 26019235, 25960145) -
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RYR1-related disorder Uncertain:2
This sequence change replaces lysine, which is basic and polar, with arginine, which is basic and polar, at codon 4210 of the RYR1 protein (p.Lys4210Arg). This variant is present in population databases (rs138932463, gnomAD 0.02%). This missense change has been observed in individual(s) with multiminicore disease (PMID: 25960145). ClinVar contains an entry for this variant (Variation ID: 93246). 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 not expected to disrupt RYR1 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. -
The RYR1 c.12629A>G variant is predicted to result in the amino acid substitution p.Lys4210Arg. This variant was reported in one patient with multiminicore disease (Snoeck et al. 2015. PubMed ID: 25960145, see Patient #53 in Table 3), but this patient also had four other rare missense variants in RYR1, and so the effect of the c.12629A>G (p.Lys4210Arg) variant alone is difficult to discern. This variant is reported in 0.019% of alleles in individuals of European (Non-Finnish) descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
not specified Uncertain:1
Variant summary: RYR1 c.12629A>G (p.Lys4210Arg) results in a conservative amino acid change in the encoded protein sequence. Two of four in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 9.9e-05 in 201352 control chromosomes. This frequency is not significantly higher than estimated for a pathogenic variant in RYR1 causing Myopathy, RYR1-Associated, allowing no conclusion about variant significance. c.12629A>G has been reported in the literature in individuals affected with multiminicore disease (Snoeck_2015, Rokach_2015). These data do not allow clear conclusion about variant significance. The following publications have been ascertained in the context of this evaluation (PMID: 26019235, 25960145). To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. ClinVar contains an entry for this variant (Variation ID: 93246). Based on the evidence outlined above, the variant was classified as uncertain significance. -
Malignant hyperthermia, susceptibility to, 1 Uncertain:1
This missense variant replaces lysine with arginine at codon 4210 of the RYR1 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with malignant hyperthermia susceptibility in the literature. This variant has been observed in individuals with multimini-core disease case (PMID: 25960145) and congenital myopathy (PMID: 26019235). This variant has been identified in 23/232710 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
Congenital myopathy with fiber type disproportion;C1840365:King Denborough syndrome;C1850674:Congenital multicore myopathy with external ophthalmoplegia;C2930980:Malignant hyperthermia, susceptibility to, 1;C5830701:Central core myopathy Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at