15-33660284-A-G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_001036.6(RYR3):​c.4483A>G​(p.Ile1495Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000205 in 1,563,072 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I1495F) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

RYR3
NM_001036.6 missense

Scores

12
6

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 2.90

Publications

0 publications found
Variant links:
Genes affected
RYR3 (HGNC:10485): (ryanodine receptor 3) The protein encoded by this gene is a ryanodine receptor, which functions to release calcium from intracellular storage for use in many cellular processes. For example, the encoded protein is involved in skeletal muscle contraction by releasing calcium from the sarcoplasmic reticulum followed by depolarization of T-tubules. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2011]
RYR3 Gene-Disease associations (from GenCC):
  • genetic developmental and epileptic encephalopathy
    Inheritance: AD Classification: LIMITED Submitted by: ClinGen, G2P
  • congenital myopathy
    Inheritance: AR 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 0 ACMG points.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RYR3NM_001036.6 linkc.4483A>G p.Ile1495Val missense_variant Exon 34 of 104 ENST00000634891.2 NP_001027.3 Q15413-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RYR3ENST00000634891.2 linkc.4483A>G p.Ile1495Val missense_variant Exon 34 of 104 1 NM_001036.6 ENSP00000489262.1 Q15413-1
RYR3ENST00000389232.9 linkc.4483A>G p.Ile1495Val missense_variant Exon 34 of 104 5 ENSP00000373884.5 A0A0X1KG73
RYR3ENST00000415757.7 linkc.4483A>G p.Ile1495Val missense_variant Exon 34 of 103 2 ENSP00000399610.3 Q15413-2
RYR3ENST00000634418.1 linkc.4483A>G p.Ile1495Val missense_variant Exon 34 of 102 5 ENSP00000489529.1 A0A0U1RRH1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152178
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000724
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:
0.0000231
AC:
4
AN:
173102
AF XY:
0.0000217
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000384
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000420
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000198
AC:
28
AN:
1410894
Hom.:
0
Cov.:
32
AF XY:
0.0000172
AC XY:
12
AN XY:
696900
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32106
American (AMR)
AF:
0.0000270
AC:
1
AN:
36974
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25324
East Asian (EAS)
AF:
0.0000274
AC:
1
AN:
36496
South Asian (SAS)
AF:
0.0000125
AC:
1
AN:
79764
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50090
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5712
European-Non Finnish (NFE)
AF:
0.0000212
AC:
23
AN:
1085812
Other (OTH)
AF:
0.0000341
AC:
2
AN:
58616
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.446
Heterozygous variant carriers
0
3
6
8
11
14
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:
0.0000263
AC:
4
AN:
152178
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74338
show subpopulations
African (AFR)
AF:
0.0000724
AC:
3
AN:
41444
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68038
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
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:
0.0000761
Hom.:
0
Bravo
AF:
0.0000340

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:1
Nov 20, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.4483A>G (p.I1495V) alteration is located in exon 34 (coding exon 34) of the RYR3 gene. This alteration results from a A to G substitution at nucleotide position 4483, causing the isoleucine (I) at amino acid position 1495 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Epileptic encephalopathy Uncertain:1
Aug 16, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. ClinVar contains an entry for this variant (Variation ID: 461914). This variant has not been reported in the literature in individuals affected with RYR3-related conditions. This variant is present in population databases (no rsID available, gnomAD 0.006%). This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 1495 of the RYR3 protein (p.Ile1495Val). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Uncertain
0.067
T
BayesDel_noAF
Uncertain
-0.010
CADD
Benign
19
DANN
Uncertain
1.0
DEOGEN2
Benign
0.36
T;.;.;.;.
Eigen
Uncertain
0.22
Eigen_PC
Uncertain
0.32
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.97
D;D;D;D;D
M_CAP
Benign
0.050
D
MetaRNN
Uncertain
0.50
T;T;T;T;T
MetaSVM
Uncertain
0.68
D
MutationAssessor
Benign
1.6
L;L;.;.;.
PhyloP100
2.9
PrimateAI
Uncertain
0.53
T
PROVEAN
Benign
-0.83
.;N;N;.;.
REVEL
Uncertain
0.52
Sift
Uncertain
0.013
.;D;D;.;.
Polyphen
0.62
P;P;.;.;.
Vest4
0.58
MVP
0.67
MPC
0.26
ClinPred
0.20
T
GERP RS
4.8
Varity_R
0.19
gMVP
0.33
Mutation Taster
=65/35
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: rs553354987; hg19: chr15-33952485; API