rs377068202

Variant names:

• chr1-237503465-C-A
• rs377068202
• NM_001035.3:c.2573C>A

Your query was ambiguous. Multiple possible variants found:

• chr1-237503465-C-A
• chr1-237503465-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 3P and 1B. PM2 PP2 BP4

The NM_001035.3(RYR2):​c.2573C>A​(p.Thr858Lys) 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 benign outcome for this variant. 13/22 in silico tools predict a benign 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. T858M) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: RYR2 NM_001035.3 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 2.73
• Publications: 0 publications found

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]

RYR2 Gene-Disease associations (from GenCC):

• arrhythmogenic right ventricular dysplasia 2

  Inheritance: AD Classification: DEFINITIVE, NO_KNOWN Submitted by: Laboratory for Molecular Medicine, Ambry Genetics
• catecholaminergic polymorphic ventricular tachycardia

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen, G2P
• catecholaminergic polymorphic ventricular tachycardia 1

  Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
• hypertrophic cardiomyopathy

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen
• arrhythmogenic right ventricular cardiomyopathy

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the RYR2 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 195 curated pathogenic missense variants (we use a threshold of 10). The gene has 55 curated benign missense variants. Gene score misZ: 5.7809 (above the threshold of 3.09). Trascript score misZ: 6.4158 (above the threshold of 3.09). GenCC associations: The gene is linked to hypertrophic cardiomyopathy, catecholaminergic polymorphic ventricular tachycardia 1, catecholaminergic polymorphic ventricular tachycardia, arrhythmogenic right ventricular dysplasia 2, arrhythmogenic right ventricular cardiomyopathy.
• BP4: Computational evidence support a benign effect (MetaRNN=0.27029842).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001035.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RYR2	NM_001035.3	MANE Select	c.2573C>A	p.Thr858Lys	missense	Exon 22 of 105	NP_001026.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RYR2	ENST00000366574.7	TSL:1 MANE Select	c.2573C>A	p.Thr858Lys	missense	Exon 22 of 105	ENSP00000355533.2
	RYR2	ENST00000661330.2		c.2573C>A	p.Thr858Lys	missense	Exon 22 of 106	ENSP00000499393.2
	RYR2	ENST00000609119.2	TSL:5	n.2573C>A		non_coding_transcript_exon	Exon 22 of 104	ENSP00000499659.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	1	-	Cardiomyopathy (1)
-	1	-	Catecholaminergic polymorphic ventricular tachycardia (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.23
BayesDel_addAF	Uncertain	0.087	D
BayesDel_noAF	Benign	-0.11
CADD	Benign	19
DANN	Benign	0.97
DEOGEN2	Uncertain	0.47	T
Eigen	Benign	-0.050
Eigen_PC	Benign	0.16
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Uncertain	0.87	D
M_CAP	Benign	0.043	D
MetaRNN	Benign	0.27	T
MetaSVM	Uncertain	0.29	D
MutationAssessor	Benign	1.4	L
PhyloP100		2.7
PrimateAI	Uncertain	0.61	T
PROVEAN	Benign	-1.9	N
REVEL	Uncertain	0.39
Sift	Benign	0.16	T
Polyphen		0.014	B
Vest4		0.40
MutPred		0.50		Gain of ubiquitination at T858 (P = 0.0219)
MVP		0.56
MPC		0.49
ClinPred		0.56	D
GERP RS		5.6
Varity_R		0.18
gMVP		0.40
Mutation Taster		=67/33	polymorphism

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

Other links and lift over

dbSNP: rs377068202; hg19: chr1-237666765;