rs748696547

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_000540.3(RYR1):​c.7925A>G​(p.Lys2642Arg) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000687 in 1,456,190 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. 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. K2642M) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

RYR1
NM_000540.3 missense, splice_region

Scores

4
8
6
Splicing: ADA: 0.9546
1
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.26

Publications

0 publications found
Variant links:
Genes affected
RYR1 (HGNC:10483): (ryanodine receptor 1) This gene encodes a ryanodine receptor found in skeletal muscle. The encoded protein functions as a calcium release channel in the sarcoplasmic reticulum but also serves to connect the sarcoplasmic reticulum and transverse tubule. Mutations in this gene are associated with malignant hyperthermia susceptibility, central core disease, and minicore myopathy with external ophthalmoplegia. Alternatively spliced transcripts encoding different isoforms have been described. [provided by RefSeq, Jul 2008]
RYR1 Gene-Disease associations (from GenCC):
  • malignant hyperthermia, susceptibility to, 1
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Genomics England PanelApp, Ambry Genetics
  • congenital multicore myopathy with external ophthalmoplegia
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Genomics England PanelApp
  • RYR1-related myopathy
    Inheritance: AR, AD Classification: DEFINITIVE Submitted by: ClinGen
  • central core myopathy
    Inheritance: AD, AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp
  • King-Denborough syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • malignant hyperthermia of anesthesia
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • autosomal recessive centronuclear myopathy
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • benign Samaritan congenital myopathy
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • congenital myopathy with myasthenic-like onset
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • lethal multiple pterygium syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.836

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RYR1NM_000540.3 linkc.7925A>G p.Lys2642Arg missense_variant, splice_region_variant Exon 49 of 106 ENST00000359596.8 NP_000531.2 P21817-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RYR1ENST00000359596.8 linkc.7925A>G p.Lys2642Arg missense_variant, splice_region_variant Exon 49 of 106 5 NM_000540.3 ENSP00000352608.2 P21817-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.00000405
AC:
1
AN:
246902
AF XY:
0.00000747
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.87e-7
AC:
1
AN:
1456190
Hom.:
0
Cov.:
37
AF XY:
0.00000138
AC XY:
1
AN XY:
724628
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86246
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
47852
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111936
Other (OTH)
AF:
0.00
AC:
0
AN:
60354
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

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
Cov.:
32
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Aug 09, 2018
PreventionGenetics, part of Exact Sciences
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Pathogenic
0.20
D
BayesDel_noAF
Uncertain
0.040
CADD
Uncertain
25
DANN
Benign
0.90
DEOGEN2
Uncertain
0.43
.;T
Eigen
Uncertain
0.22
Eigen_PC
Uncertain
0.24
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.95
D;D
M_CAP
Pathogenic
0.36
D
MetaRNN
Pathogenic
0.84
D;D
MetaSVM
Uncertain
0.46
D
MutationAssessor
Benign
0.87
L;L
PhyloP100
9.3
PrimateAI
Pathogenic
0.81
D
PROVEAN
Benign
-2.3
N;N
REVEL
Uncertain
0.62
Sift
Benign
0.80
T;T
Polyphen
1.0
D;D
Vest4
0.77
MutPred
0.40
Loss of ubiquitination at K2642 (P = 0.0283);Loss of ubiquitination at K2642 (P = 0.0283);
MVP
0.99
MPC
0.26
ClinPred
0.42
T
GERP RS
4.1
Varity_R
0.26
gMVP
0.41
Mutation Taster
=19/81
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.95
dbscSNV1_RF
Pathogenic
0.74
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: rs748696547; hg19: chr19-38993609; API