NM_001035.3:c.9923A>G

Variant names:

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 1P and 20B. PP2BP4_StrongBP6_Very_StrongBS1BS2

The NM_001035.3(RYR2):c.9923A>G(p.Asn3308Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000199 in 1,611,078 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N3308D) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00029 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00019 ( 1 hom. )

Consequence

RYR2
NM_001035.3 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts U:1B:8

Conservation

PhyloP100: 4.64

Publications

6 publications found

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 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

RYR2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -19 ACMG points.

PP2

Missense variant in the RYR2 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 195 curated pathogenic missense variants (we use a threshold of 10). The gene has 55 curated benign missense variants. Gene score misZ: 5.7809 (above the threshold of 3.09). Trascript score misZ: 6.4158 (above the threshold of 3.09). GenCC associations: The gene is linked to hypertrophic cardiomyopathy, catecholaminergic polymorphic ventricular tachycardia 1, catecholaminergic polymorphic ventricular tachycardia, arrhythmogenic right ventricular dysplasia 2, arrhythmogenic right ventricular cardiomyopathy.

BP4

Computational evidence support a benign effect (MetaRNN=0.012593895).

BP6

Variant 1-237708879-A-G is Benign according to our data. Variant chr1-237708879-A-G is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 180500.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000289 (44/152328) while in subpopulation AMR AF = 0.000588 (9/15300). AF 95% confidence interval is 0.000307. There are 0 homozygotes in GnomAd4. There are 26 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 44 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RYR2	NM_001035.3 link	c.9923A>G	p.Asn3308Ser	missense_variant	Exon 69 of 105	ENST00000366574.7	NP_001026.2	Q92736-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
RYR2	ENST00000366574.7 link	c.9923A>G	p.Asn3308Ser	missense_variant	Exon 69 of 105	1	NM_001035.3	ENSP00000355533.2	Q92736-1
RYR2	ENST00000661330.2 link	c.9923A>G	p.Asn3308Ser	missense_variant	Exon 69 of 106			ENSP00000499393.2	A0A590UJF6
RYR2	ENST00000609119.2 link	n.*958A>G		non_coding_transcript_exon_variant	Exon 67 of 104	5		ENSP00000499659.2	A0A590UK06
RYR2	ENST00000609119.2 link	n.*958A>G		3_prime_UTR_variant	Exon 67 of 104	5		ENSP00000499659.2	A0A590UK06

Frequencies

GnomAD3 genomes

AF:

0.000289

AC:

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000589

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00235

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000118

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000392

AC:

AN:

244926

AF XY:

0.000429

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000176

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00261

Gnomad NFE exome

AF:

0.000308

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000189

AC:

276

AN:

1458750

Hom.:

Cov.:

AF XY:

0.000193

AC XY:

140

AN XY:

725530

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33426

American (AMR)

AF:

0.000135

AC:

AN:

44458

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26082

East Asian (EAS)

AF:

0.00

AC:

AN:

39672

South Asian (SAS)

AF:

0.00

AC:

AN:

85924

European-Finnish (FIN)

AF:

0.00266

AC:

142

AN:

53326

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.000106

AC:

118

AN:

1109826

Other (OTH)

AF:

0.000166

AC:

AN:

60274

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000289

AC:

AN:

152328

Hom.:

Cov.:

AF XY:

0.000349

AC XY:

AN XY:

74494

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41570

American (AMR)

AF:

0.000588

AC:

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00235

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000118

AC:

AN:

68038

Other (OTH)

AF:

0.000473

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.506

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000159

Hom.:

Bravo

AF:

0.000102

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000123

AC:

ExAC

AF:

0.000290

AC:

ClinVar

Significance: Benign/Likely benign

Submissions summary: Uncertain:1Benign:8

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:3

Apr 06, 2016

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. -

May 21, 2017

Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Feb 22, 2021

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant summary: RYR2 c.9923A>G (p.Asn3308Ser) results in a conservative amino acid change in the encoded protein sequence. Five of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00039 in 244926 control chromosomes in the gnomAD database, including 1 homozygotes. The observed variant frequency is approximately 11.4 fold of the estimated maximal expected allele frequency for a pathogenic variant in RYR2 causing Catecholaminergic Polymorphic Ventricular Tachycardia phenotype (3.4e-05), strongly suggesting that the variant is benign. c.9923A>G has been reported in the literature, without strong evidence for causality (Landstrom_2017, Marjamaa_2009, Medeiros-Domingo_2009). The variant was reported experimentally to have open probabilities similar to the wild type channels in vitro (Marjamaa_2008). Four clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All laboratories classified the variant as likely benign. Based on the evidence outlined above, the variant was classified as likely benign. -

Primary familial hypertrophic cardiomyopathy

Uncertain:1

Apr 17, 2014

Blueprint Genetics

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Cardiomyopathy

Benign:1

Nov 18, 2018

Color Diagnostics, LLC DBA Color Health

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:1

Oct 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

RYR2: BP4, BS1, BS2 -

Catecholaminergic polymorphic ventricular tachycardia 1

Benign:1

Nov 17, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Catecholaminergic polymorphic ventricular tachycardia 1;C1832931:Arrhythmogenic right ventricular dysplasia 2;C5542154:Ventricular arrhythmias due to cardiac ryanodine receptor calcium release deficiency syndrome

Benign:1

Oct 12, 2021

Fulgent Genetics, Fulgent Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Cardiovascular phenotype

Benign:1

Oct 29, 2019

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.048

BayesDel_addAF

Benign

-0.42

BayesDel_noAF

Benign

-0.55

CADD

Benign

(source)

DANN

Benign

0.30

DEOGEN2

Benign

0.34

T;T

Eigen

Benign

-0.46

Eigen_PC

Benign

-0.12

FATHMM_MKL

Uncertain

0.82

LIST_S2

Benign

0.85

D;D

M_CAP

Benign

0.044

MetaRNN

Benign

0.013

T;T

MetaSVM

Benign

-0.30

MutationAssessor

Benign

-0.90

N;.

PhyloP100

4.6

PrimateAI

Uncertain

0.52

PROVEAN

Benign

0.23

N;.

REVEL

Uncertain

0.33

Sift

Benign

1.0

T;.

Polyphen

0.0

B;.

Vest4

0.20

MVP

0.53

MPC

0.29

ClinPred

0.054

GERP RS

5.7

PromoterAI

0.020

Neutral

(source)

Varity_R

0.046

gMVP

0.041

Mutation Taster

=94/6

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over