rs551099887

Positions:

• chr1-237423135-C-A
• chr1-237423135-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2 PP2 PP3_Moderate

The NM_001035.3(RYR2):​c.892C>A​(p.Arg298Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R298C) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: RYR2 NM_001035.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.06

Genes affected

RYR2 (HGNC:10484): (ryanodine receptor 2) This gene encodes a ryanodine receptor found in cardiac muscle sarcoplasmic reticulum. The encoded protein is one of the components of a calcium channel, composed of a tetramer of the ryanodine receptor proteins and a tetramer of FK506 binding protein 1B proteins, that supplies calcium to cardiac muscle. Mutations in this gene are associated with stress-induced polymorphic ventricular tachycardia and arrhythmogenic right ventricular dysplasia. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, RYR2
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.909

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RYR2	NM_001035.3	c.892C>A	p.Arg298Ser	missense_variant	12/105	ENST00000366574.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RYR2	ENST00000366574.7	c.892C>A	p.Arg298Ser	missense_variant	12/105	1	NM_001035.3	P1
RYR2	ENST00000660292.2	c.892C>A	p.Arg298Ser	missense_variant	12/106
RYR2	ENST00000659194.3	c.892C>A	p.Arg298Ser	missense_variant	12/105
RYR2	ENST00000609119.2	c.892C>A	p.Arg298Ser	missense_variant, NMD_transcript_variant	12/104	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.97
BayesDel_addAF	Pathogenic	0.24	D
BayesDel_noAF	Uncertain	0.10
CADD	Benign	22
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.93	D;D
Eigen	Uncertain	0.20
Eigen_PC	Uncertain	0.25
FATHMM_MKL	Benign	0.63	D
LIST_S2	Uncertain	0.96	D;D
M_CAP	Pathogenic	0.65	D
MetaRNN	Pathogenic	0.91	D;D
MetaSVM	Uncertain	0.70	D
MutationAssessor	Uncertain	2.5	M;.
MutationTaster	Benign	1.0	D
PrimateAI	Uncertain	0.79	T
PROVEAN	Uncertain	-3.8	D;.
REVEL	Pathogenic	0.68
Sift	Uncertain	0.0020	D;.
Polyphen		0.30	B;.
Vest4		0.95
MutPred		0.81		Loss of MoRF binding (P = 0.0439);.;
MVP		0.91
MPC		1.1
ClinPred		0.99	D
GERP RS		5.4
Varity_R		0.86
gMVP		0.90

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs551099887; hg19: chr1-237586435;