chr1-237757685-TA-T

Position:

• chr1-237757685-TA-T

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP6 BS1 BS2

The NM_001035.3(RYR2):​c.11246-11del variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000641 in 1,576,104 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.00034 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000034 (1 hom.)
• Consequence: RYR2 NM_001035.3 splice_polypyrimidine_tract, intron
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:6
• Conservation: PhyloP100: -5.24

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 -9 ACMG points.

• BP6: Variant 1-237757685-TA-T is Benign according to our data. Variant chr1-237757685-TA-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 43707.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Benign=4, Uncertain_significance=1}.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000341 (52/152332) while in subpopulation AFR AF= 0.00123 (51/41574). AF 95% confidence interval is 0.000958. There are 0 homozygotes in gnomad4. There are 26 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 52 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RYR2	NM_001035.3	c.11246-11del		splice_polypyrimidine_tract_variant, intron_variant		ENST00000366574.7	NP_001026.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RYR2	ENST00000366574.7	c.11246-11del		splice_polypyrimidine_tract_variant, intron_variant		1	NM_001035.3	ENSP00000355533	P1
RYR2	ENST00000659194.3	c.11234-11del		splice_polypyrimidine_tract_variant, intron_variant				ENSP00000499653
RYR2	ENST00000660292.2	c.11234-11del		splice_polypyrimidine_tract_variant, intron_variant				ENSP00000499787
RYR2	ENST00000609119.2	c.*2338-11del		splice_polypyrimidine_tract_variant, intron_variant, NMD_transcript_variant		5		ENSP00000499659

Frequencies

GnomAD3 genomes AF: 0.000342 AC: 52 AN: 152214 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00123

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000655

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: 0.00

GnomAD3 exomes AF: 0.0000724 AC: 18 AN: 248710 Hom.: 0 AF XY: 0.0000519 AC XY: 7 AN XY: 134940

Gnomad AFR exome AF: 0.000840

Gnomad AMR exome AF: 0.000116

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: 0.000166

GnomAD4 exome AF: 0.0000344 AC: 49 AN: 1423772 Hom.: 1 Cov.: 26 AF XY: 0.0000253 AC XY: 18 AN XY: 710972

Gnomad4 AFR exome AF: 0.000980

Gnomad4 AMR exome AF: 0.000157

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.28e-7

Gnomad4 OTH exome AF: 0.000119

GnomAD4 genome AF: 0.000341 AC: 52 AN: 152332 Hom.: 0 Cov.: 33 AF XY: 0.000349 AC XY: 26 AN XY: 74490

Gnomad4 AFR AF: 0.00123

Gnomad4 AMR AF: 0.0000654

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: 0.00

Alfa AF: 0.0000434 Hom.: 0

Bravo AF: 0.000374

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:6

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not specified Uncertain:1 Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Jan 09, 2012	Variant classified as Uncertain Significance - Favor Benign. The 11246-11delA va riant (RYR2) has not been reported in the literature nor previously identified b y our laboratory. This variant located in the 3' splice region, but does not alt er the invariant -1 or -2 positions. Computational tools to not predict altered splicing, though the accuracy of these tools is unknown. Although this variant is likely to be benign, additional studies are needed to fully assess its clinic al significance. -
Likely benign, criteria provided, single submitter	clinical testing	PreventionGenetics, part of Exact Sciences	-	- -

not provided Benign:2

Benign, criteria provided, single submitter	clinical testing	GeneDx	Mar 03, 2015	- -
Likely benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Nov 25, 2019	- -

Catecholaminergic polymorphic ventricular tachycardia Benign:1

Benign, criteria provided, single submitter

clinical testing

All of Us Research Program, National Institutes of Health

Dec 18, 2023

- -

Cardiomyopathy Benign:1

Benign, criteria provided, single submitter

clinical testing

Color Diagnostics, LLC DBA Color Health

Oct 16, 2018

- -

Catecholaminergic polymorphic ventricular tachycardia 1 Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Oct 26, 2023

- -

Computational scores

Source: dbNSFP v4.3

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		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: rs397516503; hg19: chr1-237920985;