NM_000540.3:c.11578G>A
Variant summary
Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.
The NM_000540.3(RYR1):c.11578G>A(p.Glu3860Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,613,170 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_000540.3 missense
Scores
Clinical Significance
Conservation
Publications
- malignant hyperthermia, susceptibility to, 1Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Genomics England PanelApp, Ambry Genetics
- congenital multicore myopathy with external ophthalmoplegiaInheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Genomics England PanelApp
- RYR1-related myopathyInheritance: AR, AD Classification: DEFINITIVE Submitted by: ClinGen
- central core myopathyInheritance: AD, AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp
- King-Denborough syndromeInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- malignant hyperthermia of anesthesiaInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- autosomal recessive centronuclear myopathyInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- benign Samaritan congenital myopathyInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- congenital myopathy with myasthenic-like onsetInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- lethal multiple pterygium syndromeInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Uncertain_significance. The variant received 0 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152080Hom.: 0 Cov.: 31 show subpopulations
GnomAD2 exomes AF: 0.0000240 AC: 6AN: 249744 AF XY: 0.0000222 show subpopulations
GnomAD4 exome AF: 0.00000479 AC: 7AN: 1460972Hom.: 0 Cov.: 32 AF XY: 0.00000413 AC XY: 3AN XY: 726800 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000197 AC: 3AN: 152198Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0AN XY: 74400 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
RYR1-related disorder Uncertain:2
This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 3860 of the RYR1 protein (p.Glu3860Lys). This variant is present in population databases (rs199737015, gnomAD 0.03%). This variant has not been reported in the literature in individuals affected with RYR1-related conditions. ClinVar contains an entry for this variant (Variation ID: 544399). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt RYR1 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
The RYR1 c.11578G>A variant is predicted to result in the amino acid substitution p.Glu3860Lys. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.035% of alleles in individuals of East Asian descent in gnomAD (http://gnomad.broadinstitute.org/variant/19-39026698-G-A). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Inborn genetic diseases Uncertain:1
The c.11578G>A (p.E3860K) alteration is located in exon 82 (coding exon 82) of the RYR1 gene. This alteration results from a G to A substitution at nucleotide position 11578, causing the glutamic acid (E) at amino acid position 3860 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Malignant hyperthermia, susceptibility to, 1 Uncertain:1
This missense variant replaces glutamic acid with lysine at codon 3860 of the RYR1 protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function (internally defined REVEL score threshold >= 0.7, 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 7/281074 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at