rs193922624
Variant summary
Our verdict is Benign. Variant got -10 ACMG points: 1P and 11B. PP2BP4_ModerateBP6BS1BS2
The NM_001035.3(RYR2):c.3251G>A(p.Arg1084Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000262 in 1,613,886 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1084M) has been classified as Uncertain significance.
Frequency
Consequence
NM_001035.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -10 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
RYR2 | ENST00000366574.7 | c.3251G>A | p.Arg1084Lys | missense_variant | Exon 28 of 105 | 1 | NM_001035.3 | ENSP00000355533.2 | ||
RYR2 | ENST00000609119.2 | n.3251G>A | non_coding_transcript_exon_variant | Exon 28 of 104 | 5 | ENSP00000499659.2 | ||||
RYR2 | ENST00000660292.2 | c.3251G>A | p.Arg1084Lys | missense_variant | Exon 28 of 106 | ENSP00000499787.2 | ||||
RYR2 | ENST00000659194.3 | c.3251G>A | p.Arg1084Lys | missense_variant | Exon 28 of 105 | ENSP00000499653.3 |
Frequencies
GnomAD3 genomes AF: 0.000125 AC: 19AN: 152218Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.000145 AC: 36AN: 249038Hom.: 0 AF XY: 0.000118 AC XY: 16AN XY: 135102
GnomAD4 exome AF: 0.000276 AC: 404AN: 1461668Hom.: 0 Cov.: 31 AF XY: 0.000252 AC XY: 183AN XY: 727112
GnomAD4 genome AF: 0.000125 AC: 19AN: 152218Hom.: 0 Cov.: 33 AF XY: 0.000121 AC XY: 9AN XY: 74368
ClinVar
Submissions by phenotype
not provided Uncertain:2Benign:1
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not specified Uncertain:1Benign:1
Arg1084Lys in exon 28 of RYR2: This variant is not expected to have clinical sig nificance due to a lack of conservation across species, including mammals. Of no te, opossum, tasmanian devil, and wallaby have a lysine (Lys) at this position a s well as several birds and reptiles despite high nearby amino acid conservation . In addition, computational analyses (AlignGVGD, PolyPhen2, SIFT) do not sugges t a high likelihood of impact to the protein. Arg1084Lys in exon 28 of RYR2 (rs 193922624; allele frequency = n/a) -
Note this variant was found in clinical genetic testing performed by one or more labs who may also submit to ClinVar. Thus any internal case data may overlap with the internal case data of other labs. The interpretation reviewed below is that of the Stanford Center for Inherited Cardiovascular Disease. p. Arg1084Lys (c.3251G>A) in the RYR2 gene. This variant is novel. It has not been reported in association with disease or as a benign polymorphism. In silico analysis with PolyPhen-2 predicts the variant to be benign. This is a chemically conservative change with a polar positive amino acid replacing another polar positive amino acid. The variant is not conserved across evolution and is in fact a lysine in zebra finch and green puffer. The variant is not listed in dbSNP or 1000 genomes (as of August 2011). Medeiros-Domingo et al (2009) reported that 3% of individuals from the general population carry a rare or novel variant in RYR2. Variants in RYR2 have not been linked to HCM. Other variants in RYR2 have been associated with catecholaminergic polymorphic ventricular tachycardia (CPVT). Variants in this gene have also been associated with arrhythmogenic right ventricular cardiomyopathy (ARVC), though this association is debated. -
Primary dilated cardiomyopathy Uncertain:1
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Cardiomyopathy Benign:1
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Catecholaminergic polymorphic ventricular tachycardia 1 Benign:1
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Cardiovascular phenotype Benign:1
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. -
Cardiac arrhythmia Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at