rs752607318

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 3P and 2B. PM2PP2BP4BP6

The NM_001035.3(RYR2):​c.7808C>G​(p.Ala2603Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000192 in 1,564,582 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). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A2603T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

RYR2
NM_001035.3 missense

Scores

13
5

Clinical Significance

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

Conservation

PhyloP100: 3.19

Publications

0 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
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=0.3946829).
BP6
Variant 1-237651485-C-G is Benign according to our data. Variant chr1-237651485-C-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 1760710.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RYR2NM_001035.3 linkc.7808C>G p.Ala2603Gly missense_variant Exon 51 of 105 ENST00000366574.7 NP_001026.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RYR2ENST00000366574.7 linkc.7808C>G p.Ala2603Gly missense_variant Exon 51 of 105 1 NM_001035.3 ENSP00000355533.2
RYR2ENST00000661330.2 linkc.7808C>G p.Ala2603Gly missense_variant Exon 51 of 106 ENSP00000499393.2
RYR2ENST00000609119.2 linkn.7808C>G non_coding_transcript_exon_variant Exon 51 of 104 5 ENSP00000499659.2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152152
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.00
GnomAD2 exomes
AF:
0.0000102
AC:
2
AN:
197016
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000702
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000117
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000142
AC:
2
AN:
1412430
Hom.:
0
Cov.:
26
AF XY:
0.00
AC XY:
0
AN XY:
699946
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32470
American (AMR)
AF:
0.00
AC:
0
AN:
39308
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25386
East Asian (EAS)
AF:
0.0000262
AC:
1
AN:
38108
South Asian (SAS)
AF:
0.00
AC:
0
AN:
80534
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51524
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5692
European-Non Finnish (NFE)
AF:
9.25e-7
AC:
1
AN:
1080726
Other (OTH)
AF:
0.00
AC:
0
AN:
58682
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00000657
AC:
1
AN:
152152
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74318
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41446
American (AMR)
AF:
0.00
AC:
0
AN:
15268
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10606
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68022
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.00000836
AC:
1

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Catecholaminergic polymorphic ventricular tachycardia Uncertain:1
Aug 06, 2024
All of Us Research Program, National Institutes of Health
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Cardiovascular phenotype Uncertain:1
Apr 11, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.A2603G variant (also known as c.7808C>G), located in coding exon 51 of the RYR2 gene, results from a C to G substitution at nucleotide position 7808. The alanine at codon 2603 is replaced by glycine, an amino acid with similar properties. This amino acid position is not well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Catecholaminergic polymorphic ventricular tachycardia 1 Benign:1
Jan 08, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.27
BayesDel_addAF
Benign
-0.015
T
BayesDel_noAF
Uncertain
-0.070
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.79
D;T
Eigen
Uncertain
0.33
Eigen_PC
Uncertain
0.40
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.96
D;D
M_CAP
Uncertain
0.12
D
MetaRNN
Benign
0.39
T;T
MetaSVM
Uncertain
0.55
D
MutationAssessor
Benign
1.9
L;.
PhyloP100
3.2
PrimateAI
Uncertain
0.71
T
PROVEAN
Uncertain
-2.6
D;.
REVEL
Uncertain
0.44
Sift
Uncertain
0.027
D;.
Polyphen
0.84
P;.
Vest4
0.45
MutPred
0.28
Loss of helix (P = 0.0376);.;
MVP
0.79
MPC
0.46
ClinPred
0.75
D
GERP RS
5.3
PromoterAI
0.0064
Neutral
Varity_R
0.31
gMVP
0.24
Mutation Taster
=56/44
polymorphism

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

Other links and lift over

dbSNP: rs752607318; hg19: chr1-237814785; API