rs143701391

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PM1PM2PP2PP3_Strong

The NM_000540.3(RYR1):​c.2645C>A​(p.Ala882Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A882V) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 30)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

RYR1
NM_000540.3 missense

Scores

8
7
3

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.642
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 9 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 8 uncertain in NM_000540.3
PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), RYR1. . Gene score misZ 1.918 (greater than the threshold 3.09). Trascript score misZ 3.9788 (greater than threshold 3.09). GenCC has associacion of gene with 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, 0.956

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
RYR1NM_000540.3 linkuse as main transcriptc.2645C>A p.Ala882Glu missense_variant 21/106 ENST00000359596.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
RYR1ENST00000359596.8 linkuse as main transcriptc.2645C>A p.Ala882Glu missense_variant 21/1065 NM_000540.3 A2P21817-1
RYR1ENST00000355481.8 linkuse as main transcriptc.2645C>A p.Ala882Glu missense_variant 21/1051 P4P21817-2
RYR1ENST00000599547.6 linkuse as main transcriptc.2645C>A p.Ala882Glu missense_variant, NMD_transcript_variant 21/802

Frequencies

GnomAD3 genomes
Cov.:
30
GnomAD3 exomes
AF:
0.00000400
AC:
1
AN:
250022
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135320
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1461090
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
726910
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
30
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.30
D
BayesDel_noAF
Pathogenic
0.20
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.74
.;D
Eigen
Uncertain
0.33
Eigen_PC
Benign
0.16
FATHMM_MKL
Benign
0.45
N
LIST_S2
Uncertain
0.96
D;D
M_CAP
Pathogenic
0.60
D
MetaRNN
Pathogenic
0.96
D;D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Pathogenic
3.2
M;M
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.73
T
PROVEAN
Uncertain
-3.0
D;D
REVEL
Pathogenic
0.78
Sift
Uncertain
0.0030
D;D
Polyphen
1.0
D;D
Vest4
0.88
MutPred
0.76
Gain of solvent accessibility (P = 0.0145);Gain of solvent accessibility (P = 0.0145);
MVP
1.0
MPC
1.1
ClinPred
0.94
D
GERP RS
4.0
Varity_R
0.60
gMVP
0.88

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: rs143701391; hg19: chr19-38954130; API