1-237700418-T-C

Variant names:

• chr1-237700418-T-C
• rs2797436
• NM_001035.3:c.9318T>C

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_001035.3(RYR2):​c.9318T>C​(p.Ser3106Ser) variant causes a synonymous 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. S3106S) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 30)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: RYR2 NM_001035.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -4.04
• Publications: 21 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: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).
• BP7: Synonymous conserved (PhyloP=-4.04 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RYR2	NM_001035.3	c.9318T>C	p.Ser3106Ser	synonymous_variant	Exon 65 of 105	ENST00000366574.7	NP_001026.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RYR2	ENST00000366574.7	c.9318T>C	p.Ser3106Ser	synonymous_variant	Exon 65 of 105	1	NM_001035.3	ENSP00000355533.2
RYR2	ENST00000661330.2	c.9318T>C	p.Ser3106Ser	synonymous_variant	Exon 65 of 106			ENSP00000499393.2
RYR2	ENST00000609119.2	n.*353T>C		non_coding_transcript_exon_variant	Exon 63 of 104	5		ENSP00000499659.2
RYR2	ENST00000609119.2	n.*353T>C		3_prime_UTR_variant	Exon 63 of 104	5		ENSP00000499659.2

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0 AN: 1457234 Hom.: 0 Cov.: 34 AF XY: 0.00 AC XY: 0 AN XY: 724696

African (AFR) AF: 0.00 AC: 0 AN: 33396

American (AMR) AF: 0.00 AC: 0 AN: 44292

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26030

East Asian (EAS) AF: 0.00 AC: 0 AN: 39668

South Asian (SAS) AF: 0.00 AC: 0 AN: 85386

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53228

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1109236

Other (OTH) AF: 0.00 AC: 0 AN: 60234

GnomAD4 genome Cov.: 30

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	0.0070
DANN	Benign	0.52
PhyloP100		-4.0
Mutation Taster		=88/12	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: rs2797436; hg19: chr1-237863718;