rs1380227293

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1PP2PP3_Moderate

The NM_000540.3(RYR1):​c.2293G>A​(p.Gly765Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000116 in 1,461,870 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

RYR1
NM_000540.3 missense

Scores

12
5
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 10.0
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM1
In a domain B30.2/SPRY 1 (size 216) in uniprot entity RYR1_HUMAN there are 8 pathogenic changes around while only 1 benign (89%) in NM_000540.3
PP2
Missense variant in the RYR1 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 212 curated pathogenic missense variants (we use a threshold of 10). The gene has 94 curated benign missense variants. Gene score misZ: 1.918 (below the threshold of 3.09). Trascript score misZ: 3.9788 (above the threshold of 3.09). GenCC associations: The gene is linked to King-Denborough syndrome, congenital multicore myopathy with external ophthalmoplegia, autosomal recessive centronuclear myopathy, RYR1-related myopathy, lethal multiple pterygium syndrome, malignant hyperthermia of anesthesia, benign Samaritan congenital myopathy, malignant hyperthermia, susceptibility to, 1, congenital myopathy with myasthenic-like onset, central core myopathy.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.856

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RYR1NM_000540.3 linkc.2293G>A p.Gly765Ser missense_variant Exon 19 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.2293G>A p.Gly765Ser missense_variant Exon 19 of 106 5 NM_000540.3 ENSP00000352608.2 P21817-1
RYR1ENST00000355481.8 linkc.2293G>A p.Gly765Ser missense_variant Exon 19 of 105 1 ENSP00000347667.3 P21817-2
RYR1ENST00000599547.6 linkn.2293G>A non_coding_transcript_exon_variant Exon 19 of 80 2 ENSP00000471601.2 M0R127

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
AF:
0.0000116
AC:
17
AN:
1461870
Hom.:
0
Cov.:
35
AF XY:
0.00000963
AC XY:
7
AN XY:
727240
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000144
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
31

ClinVar

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

Submissions by phenotype

RYR1-related disorder Uncertain:1
May 17, 2023
PreventionGenetics, part of Exact Sciences
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The RYR1 c.2293G>A variant is predicted to result in the amino acid substitution p.Gly765Ser. This variant was reported in an individual from an autism spectrum disorder cohort (Table S6, Callaghan et al. 2019. PubMed ID: 31038196). This variant has not been reported in a large population database (http://gnomad.broadinstitute.org), indicating this variant is rare. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.69
BayesDel_addAF
Pathogenic
0.20
D
BayesDel_noAF
Uncertain
0.050
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.81
.;D
Eigen
Pathogenic
0.75
Eigen_PC
Pathogenic
0.67
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.99
D;D
M_CAP
Pathogenic
0.45
D
MetaRNN
Pathogenic
0.86
D;D
MetaSVM
Uncertain
0.31
D
MutationAssessor
Uncertain
2.4
M;M
PrimateAI
Pathogenic
0.80
T
PROVEAN
Pathogenic
-5.6
D;D
REVEL
Pathogenic
0.77
Sift
Uncertain
0.0020
D;D
Polyphen
1.0
D;D
Vest4
0.69
MutPred
0.54
Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);
MVP
0.99
MPC
1.0
ClinPred
1.0
D
GERP RS
4.4
Varity_R
0.80
gMVP
0.53

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1380227293; hg19: chr19-38949911; API