19-38565597-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_000540.3(RYR1):ā€‹c.13263C>Gā€‹(p.Asp4421Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000306 in 1,305,978 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. D4421D) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 31)
Exomes š‘“: 0.0000031 ( 0 hom. )

Consequence

RYR1
NM_000540.3 missense

Scores

2
1
15

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.555
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 Uncertain_significance. Variant got 1 ACMG points.

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.
BP4
Computational evidence support a benign effect (MetaRNN=0.08760175).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
RYR1NM_000540.3 linkuse as main transcriptc.13263C>G p.Asp4421Glu missense_variant 91/106 ENST00000359596.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
RYR1ENST00000359596.8 linkuse as main transcriptc.13263C>G p.Asp4421Glu missense_variant 91/1065 NM_000540.3 A2P21817-1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
AF:
0.00000306
AC:
4
AN:
1305978
Hom.:
0
Cov.:
31
AF XY:
0.00000467
AC XY:
3
AN XY:
642252
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000103
Gnomad4 SAS exome
AF:
0.0000146
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.066
BayesDel_addAF
Benign
-0.12
T
BayesDel_noAF
Benign
-0.41
CADD
Benign
13
DANN
Benign
0.80
DEOGEN2
Uncertain
0.50
.;T
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.078
N
LIST_S2
Benign
0.46
T;T
M_CAP
Pathogenic
0.53
D
MetaRNN
Benign
0.088
T;T
MetaSVM
Benign
-0.64
T
MutationAssessor
Benign
-0.45
.;N
MutationTaster
Benign
0.99
N;N;N
PrimateAI
Pathogenic
0.87
D
PROVEAN
Benign
-0.060
N;N
REVEL
Benign
0.18
Sift
Benign
1.0
T;T
Polyphen
0.0010
B;B
Vest4
0.13
MutPred
0.35
.;Loss of helix (P = 0.1299);
MVP
0.64
MPC
0.53
ClinPred
0.17
T
GERP RS
-1.6
Varity_R
0.036
gMVP
0.14

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: chr19-39056237; API