NM_000540.3:c.651C>A

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM1PM2PP2PP3_Moderate

The NM_000540.3(RYR1):​c.651C>A​(p.His217Gln) 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.

Frequency

Genomes: not found (cov: 32)

Consequence

RYR1
NM_000540.3 missense

Scores

4
8
6

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -2.19
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 7 ACMG points.

PM1
In a domain MIR 3 (size 54) in uniprot entity RYR1_HUMAN there are 8 pathogenic changes around while only 0 benign (100%) in NM_000540.3
PM2
Very rare variant in population databases, with high coverage;
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, 0.931

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RYR1NM_000540.3 linkc.651C>A p.His217Gln missense_variant Exon 8 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.651C>A p.His217Gln missense_variant Exon 8 of 106 5 NM_000540.3 ENSP00000352608.2 P21817-1
RYR1ENST00000355481.8 linkc.651C>A p.His217Gln missense_variant Exon 8 of 105 1 ENSP00000347667.3 P21817-2
RYR1ENST00000599547.6 linkn.651C>A non_coding_transcript_exon_variant Exon 8 of 80 2 ENSP00000471601.2 M0R127

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
31
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.46
BayesDel_addAF
Pathogenic
0.27
D
BayesDel_noAF
Pathogenic
0.15
CADD
Benign
0.56
DANN
Benign
0.93
DEOGEN2
Uncertain
0.74
.;D
Eigen
Benign
-0.51
Eigen_PC
Benign
-0.70
FATHMM_MKL
Benign
0.36
N
LIST_S2
Uncertain
0.88
D;D
M_CAP
Uncertain
0.15
D
MetaRNN
Pathogenic
0.93
D;D
MetaSVM
Uncertain
0.35
D
MutationAssessor
Uncertain
2.1
M;M
PrimateAI
Uncertain
0.73
T
PROVEAN
Uncertain
-3.3
D;D
REVEL
Pathogenic
0.66
Sift
Benign
0.047
D;D
Polyphen
1.0
D;P
Vest4
0.84
MutPred
0.83
Loss of methylation at R220 (P = 0.072);Loss of methylation at R220 (P = 0.072);
MVP
0.89
MPC
0.70
ClinPred
0.96
D
GERP RS
-3.7
Varity_R
0.13
gMVP
0.49

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr19-38937131; API