NM_000540.3(RYR1):c.1516G>A (p.Ala506Thr) AND RYR1-related disorder

Germline classification:: Uncertain significance (2 submissions)
Last evaluated:: Jan 5, 2024
Review status:: 2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts

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:: RCV002852119.2

Allele description [Variation Report for NM_000540.3(RYR1):c.1516G>A (p.Ala506Thr)]

NM_000540.3(RYR1):c.1516G>A (p.Ala506Thr)

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.1516G>A (p.Ala506Thr)

HGVS:

NC_000019.10:g.38455310G>A
NG_008866.1:g.26611G>A
NM_000540.3:c.1516G>AMANE SELECT
NM_001042723.2:c.1516G>A
NP_000531.2:p.Ala506Thr
NP_000531.2:p.Ala506Thr
NP_001036188.1:p.Ala506Thr
LRG_766t1:c.1516G>A
LRG_766:g.26611G>A
LRG_766p1:p.Ala506Thr
NC_000019.9:g.38945950G>A
NM_000540.2:c.1516G>A
NM_000540.2:c.1516G>A

Protein change:

A506T

Molecular consequence:

NM_000540.3:c.1516G>A - missense variant - [Sequence Ontology: SO:0001583]
NM_001042723.2:c.1516G>A - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: RYR1-related disorder
Synonyms:: RYR1-Related Disorders; RYR1-related condition
Identifiers:: MedGen: CN239331

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV003223752	Invitae	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Aug 31, 2022)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV004730263	PreventionGenetics, part of Exact Sciences	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (Jan 5, 2024)	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

SCV003223752

Invitae

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Aug 31, 2022)

germline

clinical testing

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

SCV004730263

PreventionGenetics, part of Exact Sciences

criteria provided, single submitter

(ACMG Guidelines, 2015)

Uncertain significance
(Jan 5, 2024)

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

Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria.

Nykamp K, Anderson M, Powers M, Garcia J, Herrera B, Ho YY, Kobayashi Y, Patil N, Thusberg J, Westbrook M; Invitae Clinical Genomics Group., Topper S.

Genet Med. 2017 Oct;19(10):1105-1117. doi: 10.1038/gim.2017.37. Epub 2017 May 11. Erratum in: Genet Med. 2020 Jan;22(1):240. doi: 10.1038/s41436-019-0624-9.

PubMed [citation]

PMID:: 28492532
PMCID:: PMC5632818

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 Invitae, SCV003223752.1

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

Description

This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 506 of the RYR1 protein (p.Ala506Thr). This variant is present in population databases (rs770970932, gnomAD 0.006%). This missense change has been observed in individual(s) with clinical features of autosomal dominant RYR1-related conditions (Invitae). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). 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.

#	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

From PreventionGenetics, part of Exact Sciences, SCV004730263.1

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

Description

The RYR1 c.1516G>A variant is predicted to result in the amino acid substitution p.Ala506Thr. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.0065% of alleles in individuals of South Asian descent in gnomAD (http://gnomad.broadinstitute.org/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence.

#	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 7, 2024

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