chr1-237595526-T-C

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 1P and 7B. PP2BP4_ModerateBS1_SupportingBS2

The NM_001035.3(RYR2):c.4465T>C(p.Cys1489Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000172 in 1,612,568 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 Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. C1489C) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00017 ( 0 hom. )

Consequence

RYR2
NM_001035.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:9B:2

Conservation

PhyloP100: 8.01

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: ClinGen, G2P, Orphanet
catecholaminergic polymorphic ventricular tachycardia 1
Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp
dilated cardiomyopathy
Inheritance: AD Classification: LIMITED Submitted by: ClinGen
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: Likely_benign. The variant received -6 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=0.23909247).

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000145 (22/152186) while in subpopulation AMR AF = 0.000262 (4/15286). AF 95% confidence interval is 0.0000888. There are 0 homozygotes in GnomAd4. There are 8 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High AC in GnomAd4 at 22 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001035.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RYR2	NM_001035.3	MANE Select	c.4465T>C	p.Cys1489Arg	missense	Exon 34 of 105	NP_001026.2	Q92736-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
RYR2	ENST00000366574.7	TSL:1 MANE Select	c.4465T>C	p.Cys1489Arg	missense	Exon 34 of 105	ENSP00000355533.2	Q92736-1
RYR2	ENST00000661330.2		c.4465T>C	p.Cys1489Arg	missense	Exon 34 of 106	ENSP00000499393.2	A0A590UJF6
RYR2	ENST00000609119.2	TSL:5	n.4465T>C		non_coding_transcript_exon	Exon 34 of 104	ENSP00000499659.2	A0A590UK06

Frequencies

GnomAD3 genomes

AF:

0.000145

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.000147

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000157

AC:

AN:

247670

AF XY:

0.000164

show subpopulations

Gnomad AFR exome

AF:

0.000129

Gnomad AMR exome

AF:

0.000442

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000169

Gnomad OTH exome

AF:

0.000501

GnomAD4 exome

AF:

0.000175

AC:

255

AN:

1460382

Hom.:

Cov.:

AF XY:

0.000190

AC XY:

138

AN XY:

726402

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33432

American (AMR)

AF:

0.000495

AC:

AN:

44480

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26110

East Asian (EAS)

AF:

0.00

AC:

AN:

39624

South Asian (SAS)

AF:

0.00

AC:

AN:

85924

European-Finnish (FIN)

AF:

0.0000187

AC:

AN:

53390

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5758

European-Non Finnish (NFE)

AF:

0.000203

AC:

226

AN:

1111334

Other (OTH)

AF:

0.0000829

AC:

AN:

60330

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.477

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:

0.000145

AC:

AN:

152186

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74352

show subpopulations

African (AFR)

AF:

0.000169

AC:

AN:

41448

American (AMR)

AF:

0.000262

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5176

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000147

AC:

AN:

68024

Other (OTH)

AF:

0.000478

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

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:

0.000123

Hom.:

Bravo

AF:

0.000181

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000778

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000119

AC:

ExAC

AF:

0.000165

AC:

EpiCase

AF:

0.000164

EpiControl

AF:

0.000119

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (4)

Cardiomyopathy (2)

Cardiovascular phenotype (2)

Catecholaminergic polymorphic ventricular tachycardia 1 (1)

Catecholaminergic polymorphic ventricular tachycardia 1;C1832931:Arrhythmogenic right ventricular dysplasia 2 (1)

Long QT syndrome (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.87

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Uncertain

-0.060

CADD

Benign

(source)

DANN

Benign

0.95

DEOGEN2

Uncertain

0.52

Eigen

Benign

0.10

Eigen_PC

Uncertain

0.27

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.92

M_CAP

Benign

0.015

MetaRNN

Benign

0.24

MetaSVM

Benign

-0.87

MutationAssessor

Benign

1.0

PhyloP100

8.0

PrimateAI

Pathogenic

0.84

PROVEAN

Pathogenic

-4.9

REVEL

Uncertain

0.38

Sift

Benign

0.87

Polyphen

0.53

Vest4

0.97

MVP

0.42

MPC

0.66

ClinPred

0.099

GERP RS

5.5

Varity_R

0.76

gMVP

0.80

Mutation Taster

=13/87

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over