rs377710043

Positions:

• chr1-237364379-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BS1 BS2

The NM_001035.3(RYR2):​c.309+7C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000233 in 1,522,486 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.0014 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00011 (0 hom.)
• Consequence: RYR2 NM_001035.3 splice_region, intron
• Scores: Splicing: ADA: 0.001003
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:5
• Conservation: PhyloP100: 1.04

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 -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.73).
• BP6: Variant 1-237364379-C-T is Benign according to our data. Variant chr1-237364379-C-T is described in ClinVar as [Benign]. Clinvar id is 138934.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-237364379-C-T is described in Lovd as [Likely_benign].
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00137 (207/151476) while in subpopulation AFR AF= 0.00477 (197/41334). AF 95% confidence interval is 0.00422. There are 0 homozygotes in gnomad4. There are 98 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 207 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RYR2	NM_001035.3	c.309+7C>T		splice_region_variant, intron_variant		ENST00000366574.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RYR2	ENST00000366574.7	c.309+7C>T		splice_region_variant, intron_variant		1	NM_001035.3	P1
RYR2	ENST00000659194.3	c.309+7C>T		splice_region_variant, intron_variant
RYR2	ENST00000660292.2	c.309+7C>T		splice_region_variant, intron_variant
RYR2	ENST00000609119.2	c.309+7C>T		splice_region_variant, intron_variant, NMD_transcript_variant		5

Frequencies

GnomAD3 genomes AF: 0.00137 AC: 207 AN: 151374 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00478

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000395

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: 0.00

Gnomad OTH AF: 0.00192

GnomAD3 exomes AF: 0.000394 AC: 80 AN: 203094 Hom.: 0 AF XY: 0.000329 AC XY: 36 AN XY: 109520

Gnomad AFR exome AF: 0.00526

Gnomad AMR exome AF: 0.000534

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.000107 AC: 147 AN: 1371010 Hom.: 0 Cov.: 22 AF XY: 0.000113 AC XY: 77 AN XY: 682748

Gnomad4 AFR exome AF: 0.00333

Gnomad4 AMR exome AF: 0.000586

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000126

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000384

Gnomad4 OTH exome AF: 0.000246

GnomAD4 genome AF: 0.00137 AC: 207 AN: 151476 Hom.: 0 Cov.: 32 AF XY: 0.00132 AC XY: 98 AN XY: 73996

Gnomad4 AFR AF: 0.00477

Gnomad4 AMR AF: 0.000395

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00190

Alfa AF: 0.000706 Hom.: 0

Bravo AF: 0.00165

ClinVar

Significance: Benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:3

Benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Jul 02, 2022	- -
Benign, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Mar 19, 2012	c.309+7C>T in Intron 05 of RYR2: This variant is not expected to have clinical s ignificance because it is not located within the splice consensus sequence and h as been identified in 0.4% (11/2838) of African American chromosomes from a broa d population by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu /EVS;). -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Jan 24, 2014	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Mar 09, 2023

- -

Catecholaminergic polymorphic ventricular tachycardia 1 Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Jan 29, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.73
CADD	Benign	5.4
DANN	Benign	0.53

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.0010
dbscSNV1_RF	Benign	0.018
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

Publications

LitVar

Other links and lift over

dbSNP: rs377710043; hg19: chr1-237527679;