NM_000540.3(RYR1):c.1441-2A>G AND Central core myopathy

Germline classification:: Likely pathogenic (1 submission)
Last evaluated:: Mar 7, 2019
Review status:: 1 star out of maximum of 4 stars
criteria provided, single submitter

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV004018077.1

Allele description [Variation Report for NM_000540.3(RYR1):c.1441-2A>G]

NM_000540.3(RYR1):c.1441-2A>G

Genes:

LOC129391106:MPRA-validated peak3472 silencer [Gene]
RYR1:ryanodine receptor 1 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

19q13.2

Genomic location:

Preferred name:

NM_000540.3(RYR1):c.1441-2A>G

HGVS:

NC_000019.10:g.38455233A>G
NG_008866.1:g.26534A>G
NG_156736.1:g.178A>G
NM_000540.3:c.1441-2A>GMANE SELECT
NM_001042723.2:c.1441-2A>G
LRG_766:g.26534A>G
NC_000019.9:g.38945873A>G

Molecular consequence:

NM_000540.3:c.1441-2A>G - splice acceptor variant - [Sequence Ontology: SO:0001574]
NM_001042723.2:c.1441-2A>G - splice acceptor variant - [Sequence Ontology: SO:0001574]

Condition(s)

Name:: Central core myopathy (CMYO1A)
Synonyms:: Central core disease; Central core disease of muscle; Muscle core disease; See all synonyms [MedGen]
Identifiers:: MONDO: MONDO:0007294; MedGen: C0751951; Orphanet: 597; OMIM: 117000

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gi|12475049|gnl|dbEST|7596567|gb|BG 1.1|

Nucleotide

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV004847659	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	criteria provided, single submitter (ACMG Guidelines, 2015)	Likely Pathogenic (Mar 7, 2019)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV004847659

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

criteria provided, single submitter

(ACMG Guidelines, 2015)

Likely Pathogenic
(Mar 7, 2019)

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Standards and guidelines for the interpretation of sequence variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology.

Richards S, Aziz N, Bale S, Bick D, Das S, Gastier-Foster J, Grody WW, Hegde M, Lyon E, Spector E, Voelkerding K, Rehm HL; ACMG Laboratory Quality Assurance Committee..

Genet Med. 2015 May;17(5):405-24. doi: 10.1038/gim.2015.30. Epub 2015 Mar 5.

PubMed [citation]

PMID:: 25741868
PMCID:: PMC4544753

Details of each submission

From Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine, SCV004847659.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

Description

The c.1441-2A>G variant in RYR1 has not been previously reported in individuals with disease and was absent from large population studies. This variant occurs within the canonical splice site (+/- 1,2) and is predicted to cause altered splicing leading to an abnormal or absent protein. Biallelic loss of function of the RYR1 gene is an established disease mechanism in autosomal recessive congenital myopathy/central core disease. In summary, although additional studies are required to fully establish its clinical significance, the c.1441-2A>G variant in RYR1 meets criteria to be classified as likely pathogenic for autosomal recessive congenital myopathy/central core disease. ACMG/AMP Criteria applied: PVS1, PM2.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Jul 29, 2024

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