rs777733662

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_000540.3(RYR1):​c.5638G>A​(p.Glu1880Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000571 in 1,610,034 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E1880D) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000060 ( 0 hom. )

Consequence

RYR1
NM_000540.3 missense

Scores

1
3
14

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: 5.55

Publications

1 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: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.22862631).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RYR1NM_000540.3 linkc.5638G>A p.Glu1880Lys missense_variant Exon 35 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.5638G>A p.Glu1880Lys missense_variant Exon 35 of 106 5 NM_000540.3 ENSP00000352608.2 P21817-1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152148
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.0000441
Gnomad OTH
AF:
0.000480
GnomAD2 exomes
AF:
0.000105
AC:
26
AN:
248088
AF XY:
0.000104
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000232
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000631
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000597
AC:
87
AN:
1457886
Hom.:
0
Cov.:
31
AF XY:
0.0000593
AC XY:
43
AN XY:
725498
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33394
American (AMR)
AF:
0.000179
AC:
8
AN:
44676
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26116
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39682
South Asian (SAS)
AF:
0.000232
AC:
20
AN:
86174
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53266
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5756
European-Non Finnish (NFE)
AF:
0.0000478
AC:
53
AN:
1108544
Other (OTH)
AF:
0.0000664
AC:
4
AN:
60278
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.494
Heterozygous variant carriers
0
5
10
15
20
25
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:
0.0000329
AC:
5
AN:
152148
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74318
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41436
American (AMR)
AF:
0.0000655
AC:
1
AN:
15266
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
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:
0.0000441
AC:
3
AN:
68026
Other (OTH)
AF:
0.000480
AC:
1
AN:
2084
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
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

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:
0.000130
Hom.:
0
Bravo
AF:
0.0000491
ExAC
AF:
0.000115
AC:
14

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:4Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Malignant hyperthermia, susceptibility to, 1 Uncertain:2
Sep 23, 2024
All of Us Research Program, National Institutes of Health
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This missense variant replaces glutamic acid with lysine at codon 1880 of the RYR1 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with RYR1-related disorders in the literature. This variant has been identified in 29/279466 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -

Nov 29, 2023
Color Diagnostics, LLC DBA Color Health
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This missense variant replaces glutamic acid with lysine at codon 1880 of the RYR1 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.6, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with RYR1-related disorders in the literature. This variant has been identified in 29/279466 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -

Inborn genetic diseases Uncertain:1
Feb 03, 2022
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.5638G>A (p.E1880K) alteration is located in exon 35 (coding exon 35) of the RYR1 gene. This alteration results from a G to A substitution at nucleotide position 5638, causing the glutamic acid (E) at amino acid position 1880 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided Uncertain:1
Jun 01, 2023
CeGaT Center for Human Genetics Tuebingen
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

RYR1: PM2:Supporting, BP4 -

RYR1-related disorder Benign:1
Dec 12, 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
0.084
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.56
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.43
.;T
Eigen
Benign
0.11
Eigen_PC
Benign
0.068
FATHMM_MKL
Uncertain
0.82
D
LIST_S2
Benign
0.74
T;T
M_CAP
Pathogenic
0.32
D
MetaRNN
Benign
0.23
T;T
MetaSVM
Benign
-0.98
T
MutationAssessor
Benign
0.61
N;N
PhyloP100
5.6
PrimateAI
Benign
0.46
T
PROVEAN
Benign
-1.1
N;N
REVEL
Benign
0.068
Sift
Benign
0.14
T;T
Polyphen
0.97
D;D
Vest4
0.43
MutPred
0.20
Gain of methylation at E1880 (P = 0.0051);Gain of methylation at E1880 (P = 0.0051);
MVP
0.83
MPC
0.37
ClinPred
0.11
T
GERP RS
4.1
Varity_R
0.17
gMVP
0.28
Mutation Taster
=31/69
disease causing

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: rs777733662; hg19: chr19-38979907; API