rs763374929

Variant names:

• chr1-237783739-C-T
• rs763374929
• NM_001035.3:c.12027C>T

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_Strong BP6 BP7 BS1 BS2

The NM_001035.3(RYR2):​c.12027C>T​(p.Asn4009Asn) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000366 in 1,612,344 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.000020 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000038 (0 hom.)
• Consequence: RYR2 NM_001035.3 synonymous
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3 B:7
• Conservation: PhyloP100: -1.74
• 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: ClinGen, G2P, Orphanet
• catecholaminergic polymorphic ventricular tachycardia 1

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

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen
• hypertrophic cardiomyopathy

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

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

ENSG00000296715 (HGNC:):

ACMG classification

Our verdict: Benign. The variant received -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.52).
• BP6: Variant 1-237783739-C-T is Benign according to our data. Variant chr1-237783739-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 296757.
• BP7: Synonymous conserved (PhyloP=-1.74 with no splicing effect.
• BS1: Variant frequency is greater than expected in population sas. GnomAdExome4 allele frequency = 0.0000384 (56/1460192) while in subpopulation SAS AF = 0.0000349 (3/85852). AF 95% confidence interval is 0.0000254. There are 0 homozygotes in GnomAdExome4. There are 24 alleles in the male GnomAdExome4 subpopulation. Median coverage is 32. This position passed quality control check.
• BS2: High AC in GnomAdExome4 at 56 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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RYR2	NM_001035.3	MANE Select	c.12027C>T	p.Asn4009Asn	synonymous	Exon 90 of 105	NP_001026.2	Q92736-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RYR2	ENST00000366574.7	TSL:1 MANE Select	c.12027C>T	p.Asn4009Asn	synonymous	Exon 90 of 105	ENSP00000355533.2	Q92736-1
	RYR2	ENST00000661330.2		c.12051C>T	p.Asn4017Asn	synonymous	Exon 91 of 106	ENSP00000499393.2	A0A590UJF6
	RYR2	ENST00000609119.2	TSL:5	n.*3119C>T		non_coding_transcript_exon	Exon 89 of 104	ENSP00000499659.2	A0A590UK06

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152152 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.000478

GnomAD2 exomes AF: 0.0000487 AC: 12 AN: 246436 AF XY: 0.0000524

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000292

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.0000932

Gnomad NFE exome AF: 0.0000716

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000384 AC: 56 AN: 1460192 Hom.: 0 Cov.: 32 AF XY: 0.0000330 AC XY: 24 AN XY: 726182

African (AFR) AF: 0.00 AC: 0 AN: 33466

American (AMR) AF: 0.0000224 AC: 1 AN: 44604

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26074

East Asian (EAS) AF: 0.00 AC: 0 AN: 39640

South Asian (SAS) AF: 0.0000349 AC: 3 AN: 85852

European-Finnish (FIN) AF: 0.000169 AC: 9 AN: 53348

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.0000342 AC: 38 AN: 1111120

Other (OTH) AF: 0.0000829 AC: 5 AN: 60322

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152152 Hom.: 0 Cov.: 32 AF XY: 0.0000404 AC XY: 3 AN XY: 74314

African (AFR) AF: 0.0000241 AC: 1 AN: 41434

American (AMR) AF: 0.00 AC: 0 AN: 15274

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5182

South Asian (SAS) AF: 0.00 AC: 0 AN: 4824

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10606

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

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68042

Other (OTH) AF: 0.000478 AC: 1 AN: 2094

Alfa AF: 0.0000475 Hom.: 0

Bravo AF: 0.0000378

ClinVar

ClinVar submissions

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
-	1	1	Catecholaminergic polymorphic ventricular tachycardia 1 (2)
-	1	1	not provided (2)
-	1	-	Arrhythmogenic right ventricular dysplasia 2 (1)
-	-	1	Cardiomyopathy (1)
-	-	1	Cardiovascular phenotype (1)
-	-	1	Catecholaminergic polymorphic ventricular tachycardia (1)
-	-	1	not specified (1)
-	-	1	RYR2-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.52
CADD	Benign	0.32
DANN	Benign	0.60
PhyloP100		-1.7
Mutation Taster		=93/7	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs763374929; hg19: chr1-237947039; COSMIC: COSV100773485;