rs72751287

chr1-237717194-A-G

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_Strong BP6 BS1 BS2

The NM_001035.3(RYR2):c.10324-4A>G variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00321 in 1,613,052 control chromosomes in the GnomAD database, including 13 homozygotes. In-silico tool predicts a benign outcome for this variant. 2/2 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.0020 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0033 (13 hom.)
• Consequence: RYR2 NM_001035.3 splice_region, splice_polypyrimidine_tract, intron
• Scores: Splicing: ADA: 0.00004073
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:17
• Conservation: PhyloP100: -2.66

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 Benign. Variant got -13 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.87).
• BP6: Variant 1-237717194-A-G is Benign according to our data. Variant chr1-237717194-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 43698.We mark this variant Likely_benign, oryginal submissions are: {Benign=7, Likely_benign=5, Uncertain_significance=1}. Variant chr1-237717194-A-G is described in Lovd as [Benign]. Variant chr1-237717194-A-G is described in Lovd as [Likely_benign].
• BS1: Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00196 (298/152304) while in subpopulation NFE AF= 0.00381 (259/68020). AF 95% confidence interval is 0.00343. There are 0 homozygotes in gnomad4. There are 127 alleles in male gnomad4 subpopulation. This position pass quality control queck.
• BS2: High AC in GnomAd at 298 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RYR2	NM_001035.3	c.10324-4A>G		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000366574.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RYR2	ENST00000366574.7	c.10324-4A>G		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		1	NM_001035.3	P1

Frequencies

GnomAD3 genomes AF: 0.00196 AC: 298 AN: 152186 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.000724

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000196

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.000188

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00381

Gnomad OTH AF: 0.00191

GnomAD3 exomes AF: 0.00188 AC: 465 AN: 247800 Hom.: 1 AF XY: 0.00180 AC XY: 242 AN XY: 134420

Gnomad AFR exome AF: 0.000716

Gnomad AMR exome AF: 0.000262

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.0000465

Gnomad NFE exome AF: 0.00386

Gnomad OTH exome AF: 0.00183

GnomAD4 exome AF: 0.00334 AC: 4874 AN: 1460748 Hom.: 13 Cov.: 31 AF XY: 0.00323 AC XY: 2345 AN XY: 726550

Gnomad4 AFR exome AF: 0.000568

Gnomad4 AMR exome AF: 0.000202

Gnomad4 ASJ exome AF: 0.0000383

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.000131

Gnomad4 NFE exome AF: 0.00425

Gnomad4 OTH exome AF: 0.00192

GnomAD4 genome AF: 0.00196 AC: 298 AN: 152304 Hom.: 0 Cov.: 32 AF XY: 0.00171 AC XY: 127 AN XY: 74480

Gnomad4 AFR AF: 0.000722

Gnomad4 AMR AF: 0.000196

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.000188

Gnomad4 NFE AF: 0.00381

Gnomad4 OTH AF: 0.00189

Alfa AF: 0.00334 Hom.: 0

Bravo AF: 0.00192

Asia WGS AF: 0.000577 AC: 2 AN: 3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:17

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not specified Benign:7

Benign, no assertion criteria provided	clinical testing	Clinical Genetics, Academic Medical Center	-	- -
Benign, no assertion criteria provided	clinical testing	Genome Diagnostics Laboratory, University Medical Center Utrecht	-	- -
Benign, no assertion criteria provided	clinical testing	Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+	-	- -
Likely benign, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Apr 10, 2014	- -
Benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Jan 22, 2018	Variant summary: c.10324-4A>G in RYR2 gene is an intronic change that involves a non-conserved nucleotide. 2/5 programs in Alamut predict that this variant creates a new cryptic donor site, however no functional studies supporting this notion were published at the time of evaluation. The variant is present in the control population dataset of gnomAD at frequency of 0.00186 (513/275834chrs tested), predominantly in individuals of European (N-F) descent (0.0038;483/ 126018 chrs tested, including 1 homozygote). The observed frequency greatly exceeds the maximum expected allele frequency for a pathogenic variant of 0.00003, suggesting that it is a common polymorphism. The variant of interest has not, to our knowledge, been reported in affected individuals in published reports but is cited as Benign by reputable database/clinical laboratory. Taking together, the variant was classified as Benign. -
Benign, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Jan 12, 2013	10324-4A>G in intron 71 of RYR2: This variant is not expected to have clinical s ignificance because it does not affect the splicing consensus sequence and has b een identified in 0.3% (23/6634) of chromosomes from a broad population by the N HGRI Exome Sequencing Project (http://evs.gs.washington.edu/EVS/). -
Likely benign, criteria provided, single submitter	clinical testing	Institute for Genomic Medicine (IGM) Clinical Laboratory, Nationwide Children's Hospital	Nov 01, 2017	BS1, BP4, BP6; This alteration has an allele frequency that is greater than expected for the associated disease, is predicted to be tolerated by multiple functional prediction tools, and was reported as a benign/likely benign alteration by a reputable source (ClinVar or other correspondence from a clinical testing laboratory). -

not provided Benign:3

Likely benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Mar 03, 2015	- -
Likely benign, no assertion criteria provided	clinical testing	Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen	-	- -

Catecholaminergic polymorphic ventricular tachycardia 1 Benign:3

Benign, criteria provided, single submitter	clinical testing	Genomic Diagnostic Laboratory, Division of Genomic Diagnostics, Children's Hospital of Philadelphia	May 11, 2015	- -
Benign, criteria provided, single submitter	clinical testing	Invitae	Jan 31, 2024	- -
Likely benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Mar 12, 2018	This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

Cardiomyopathy Benign:2

Likely benign, criteria provided, single submitter	clinical testing	CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario	Aug 21, 2017	- -
Benign, criteria provided, single submitter	clinical testing	Color Diagnostics, LLC DBA Color Health	Mar 09, 2018	- -

Arrhythmogenic right ventricular dysplasia 2 Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Mar 12, 2018

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

Cardiovascular phenotype Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 27, 2018

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. -

RYR2-related condition Benign:1

Benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Mar 09, 2020

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.87
Cadd	Benign	0.014
Dann	Benign	0.51

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.000041
dbscSNV1_RF	Benign	0.0
SpliceAI score (max)		0.080		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: rs72751287; hg19: chr1-237880494;