NM_000540.3:c.12283-7C>T
Variant summary
Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2
The NM_000540.3(RYR1):c.12283-7C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00287 in 1,613,794 control chromosomes in the GnomAD database, including 12 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_000540.3 splice_region, intron
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: Benign. The variant received -13 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes   AF:  0.00198  AC: 301AN: 152048Hom.:  1  Cov.: 32 show subpopulations 
GnomAD2 exomes  AF:  0.00196  AC: 488AN: 248440 AF XY:  0.00197   show subpopulations 
GnomAD4 exome  AF:  0.00297  AC: 4336AN: 1461642Hom.:  11  Cov.: 34 AF XY:  0.00289  AC XY: 2099AN XY: 727130 show subpopulations 
Age Distribution
GnomAD4 genome   AF:  0.00198  AC: 301AN: 152152Hom.:  1  Cov.: 32 AF XY:  0.00176  AC XY: 131AN XY: 74372 show subpopulations 
Age Distribution
ClinVar
Submissions by phenotype
not specified    Uncertain:1Benign:2 
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Malignant hyperthermia, susceptibility to, 1    Benign:3 
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -
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not provided    Benign:3 
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RYR1: BP4 -
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Congenital multicore myopathy with external ophthalmoplegia    Benign:1 
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -
RYR1-related disorder    Benign:1 
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Neuromuscular disease, congenital, with uniform type 1 fiber    Benign:1 
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Congenital myopathy    Benign:1 
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Central core myopathy    Benign:1 
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Computational scores
Source: 
Splicing
 Find out detailed SpliceAI scores and Pangolin per-transcript scores at