chr1-237643306-GT-G

Variant names:

• chr1-237643306-GT-G
• rs145140335
• NM_001035.3:c.7222-12delT

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP6_Moderate BS1 BS2

The NM_001035.3(RYR2):​c.7222-12delT variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000031 in 1,580,562 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Benign (★).

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000033 (0 hom.)
• Consequence: RYR2 NM_001035.3 intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 2.06
• Publications: 2 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: Benign. The variant received -10 ACMG points.

• BP6: Variant 1-237643306-GT-G is Benign according to our data. Variant chr1-237643306-GT-G is described in ClinVar as Benign. ClinVar VariationId is 2187857.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS1: Variant frequency is greater than expected in population sas. GnomAdExome4 allele frequency = 0.0000329 (47/1429108) while in subpopulation SAS AF = 0.000121 (10/82878). AF 95% confidence interval is 0.0000648. There are 0 homozygotes in GnomAdExome4. There are 22 alleles in the male GnomAdExome4 subpopulation. Median coverage is 30. This position passed quality control check.
• BS2: High AC in GnomAdExome4 at 47 AD gene.

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.7222-12delT		intron	N/A	NP_001026.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RYR2	ENST00000366574.7	TSL:1 MANE Select	c.7222-20delT		intron	N/A	ENSP00000355533.2
	RYR2	ENST00000661330.2		c.7222-20delT		intron	N/A	ENSP00000499393.2
	RYR2	ENST00000609119.2	TSL:5	n.7222-20delT		intron	N/A	ENSP00000499659.2

Frequencies

GnomAD3 genomes AF: 0.0000132 AC: 2 AN: 151454 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000208

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000380 AC: 8 AN: 210328 AF XY: 0.0000263

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000732

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000408

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000329 AC: 47 AN: 1429108 Hom.: 0 Cov.: 30 AF XY: 0.0000310 AC XY: 22 AN XY: 710120

African (AFR) AF: 0.0000307 AC: 1 AN: 32564

American (AMR) AF: 0.0000232 AC: 1 AN: 43150

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25366

East Asian (EAS) AF: 0.0000259 AC: 1 AN: 38658

South Asian (SAS) AF: 0.000121 AC: 10 AN: 82878

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52318

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5646

European-Non Finnish (NFE) AF: 0.0000303 AC: 33 AN: 1089634

Other (OTH) AF: 0.0000170 AC: 1 AN: 58894

GnomAD4 genome AF: 0.0000132 AC: 2 AN: 151454 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 73938

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 41196

American (AMR) AF: 0.00 AC: 0 AN: 15214

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3462

East Asian (EAS) AF: 0.00 AC: 0 AN: 5168

South Asian (SAS) AF: 0.000208 AC: 1 AN: 4804

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10500

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 67808

Other (OTH) AF: 0.00 AC: 0 AN: 2078

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.00000000770867), which strongly suggests a high chance of mosaicism in these individuals.

Alfa AF: 0.00 Hom.: 0

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

Catecholaminergic polymorphic ventricular tachycardia 1 Benign:1

Dec 03, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		2.1
Mutation Taster		=100/0	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs145140335; hg19: chr1-237806606; COSMIC: COSV63720576;