rs780970109
Variant summary
Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PP3_Strong
The NM_001036.6(RYR3):c.962G>A(p.Arg321Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000301 in 1,460,420 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 Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R321W) has been classified as Uncertain significance.
Frequency
Consequence
NM_001036.6 missense
Scores
Clinical Significance
Conservation
Publications
- genetic developmental and epileptic encephalopathyInheritance: AD Classification: LIMITED Submitted by: ClinGen, G2P
- congenital myopathyInheritance: AR Classification: NO_KNOWN Submitted by: ClinGen
Genome browser will be placed here
ACMG classification
Our verdict: Uncertain_significance. The variant received 4 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| RYR3 | ENST00000634891.2 | c.962G>A | p.Arg321Gln | missense_variant | Exon 10 of 104 | 1 | NM_001036.6 | ENSP00000489262.1 | ||
| RYR3 | ENST00000389232.9 | c.962G>A | p.Arg321Gln | missense_variant | Exon 10 of 104 | 5 | ENSP00000373884.5 | |||
| RYR3 | ENST00000415757.7 | c.962G>A | p.Arg321Gln | missense_variant | Exon 10 of 103 | 2 | ENSP00000399610.3 | |||
| RYR3 | ENST00000634418.1 | c.962G>A | p.Arg321Gln | missense_variant | Exon 10 of 102 | 5 | ENSP00000489529.1 |
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD2 exomes AF: 0.00000813 AC: 2AN: 245884 AF XY: 0.00 show subpopulations
GnomAD4 exome AF: 0.0000301 AC: 44AN: 1460420Hom.: 0 Cov.: 31 AF XY: 0.0000303 AC XY: 22AN XY: 726310 show subpopulations
Age Distribution
GnomAD4 genome Cov.: 33
ClinVar
Submissions by phenotype
not specified Uncertain:1
The c.962G>A (p.R321Q) alteration is located in exon 10 (coding exon 10) of the RYR3 gene. This alteration results from a G to A substitution at nucleotide position 962, causing the arginine (R) at amino acid position 321 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Epileptic encephalopathy Uncertain:1
This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 321 of the RYR3 protein (p.Arg321Gln). This variant is present in population databases (no rsID available, gnomAD 0.006%). This variant has not been reported in the literature in individuals affected with RYR3-related conditions. ClinVar contains an entry for this variant (Variation ID: 579964). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at