chr1-237374708-A-C

Position:

chr1-237374708-A-C

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001035.3(RYR2):c.385-9A>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000137 in 1,607,614 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 Likely benign (★★).

Frequency

Genomes: 𝑓 0.00066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000082 ( 0 hom. )

Consequence

RYR2
NM_001035.3 intron

Scores

Splicing: ADA: 0.00001136

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: -2.41

Variant links:

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.88).

BP6

Variant 1-237374708-A-C is Benign according to our data. Variant chr1-237374708-A-C is described in ClinVar as [Likely_benign]. Clinvar id is 378483.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000657 (100/152260) while in subpopulation AFR AF= 0.00231 (96/41552). AF 95% confidence interval is 0.00194. There are 0 homozygotes in gnomad4. There are 49 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 100 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RYR2	NM_001035.3 link	c.385-9A>C		intron_variant		ENST00000366574.7	NP_001026.2	Q92736-1

Ensembl

Gene	Transcript	HGVSc	Effect	TSL	MANE	Protein	UniProt
RYR2	ENST00000366574.7 link	c.385-9A>C	intron_variant	1	NM_001035.3	ENSP00000355533.2	Q92736-1
RYR2	ENST00000609119.2 link	n.385-9A>C	intron_variant	5		ENSP00000499659.2	A0A590UK06
RYR2	ENST00000660292.2 link	c.385-9A>C	intron_variant			ENSP00000499787.2	A0A590UKB7
RYR2	ENST00000659194.3 link	c.385-9A>C	intron_variant			ENSP00000499653.3	A0A590UJZ8

Frequencies

GnomAD3 genomes

AF:

0.000651

AC:

AN:

152142

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00229

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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

GnomAD3 exomes

AF:

0.000189

AC:

AN:

243430

Hom.:

AF XY:

0.000159

AC XY:

AN XY:

131852

show subpopulations

Gnomad AFR exome

AF:

0.00248

Gnomad AMR exome

AF:

0.000118

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000339

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000363

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000825

AC:

120

AN:

1455354

Hom.:

Cov.:

AF XY:

0.0000705

AC XY:

AN XY:

723722

show subpopulations

Gnomad4 AFR exome

AF:

0.00231

Gnomad4 AMR exome

AF:

0.000136

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000117

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000117

Gnomad4 OTH exome

AF:

0.000349

GnomAD4 genome

AF:

0.000657

AC:

100

AN:

152260

Hom.:

Cov.:

AF XY:

0.000658

AC XY:

AN XY:

74452

show subpopulations

Gnomad4 AFR

AF:

0.00231

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000214

Hom.:

Bravo

AF:

0.000790

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:8

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:4

Benign, criteria provided, single submitter	clinical testing	GeneDx	Apr 07, 2016	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. -
Likely benign, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	May 02, 2016	c.385-9A>C in intron 6 of RYR2: This variant is not expected to have clinical si gnificance because it has been identified in 0.3% (20/6896) of African chromosom es by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; db SNP rs140998248). -
Benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Jul 16, 2018	Variant summary: RYR2 c.385-9A>C alters a non-conserved nucleotide located close to a canonical splice site and therefore could affect mRNA splicing, leading to a significantly altered protein sequence. 5/5 computational tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant was observed with an allele frequency of 0.00027 in 271504 control chromosomes (gnomAD), predominantly in Africans, 62/23486 chromosomes (allele frequency 0.0026). The observed variant frequency within African control individuals in the gnomAD database is approximately 43-folds higher than the estimated maximal expected allele frequency for a pathogenic variant in RYR2 causing Arrhythmia phenotype (6e-05), strongly suggesting that the variant is a benign polymorphism found primarily in populations of African origin. To our knowledge, no occurrence of c.385-9A>C in individuals affected with Arrhythmia and no experimental evidence demonstrating its impact on protein function have been reported. Four ClinVar submissions from clinical diagnostic laboratories (evaluation after 2014) cite the variant as "likely benign/benign." Based on the evidence outlined above, the variant was classified as benign. -
Likely benign, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Jan 04, 2017	- -

Cardiomyopathy

Benign:2

Benign, criteria provided, single submitter	clinical testing	CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario	Jun 12, 2018	- -
Benign, criteria provided, single submitter	clinical testing	Color Diagnostics, LLC DBA Color Health	Nov 27, 2018	- -

Catecholaminergic polymorphic ventricular tachycardia

Benign:1

Benign, criteria provided, single submitter

clinical testing

All of Us Research Program, National Institutes of Health

Feb 05, 2024

- -

Catecholaminergic polymorphic ventricular tachycardia 1

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 23, 2025

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.88

CADD

Benign

0.043

DANN

Benign

0.42

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000011

dbscSNV1_RF

Benign

0.0020

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over