19-38440788-A-T

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 1P and 3B. PP2BP4_ModerateBP6

The NM_000540.3(RYR1):c.89A>T(p.Glu30Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000182 in 1,609,096 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

RYR1
NM_000540.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:7B:2

Conservation

PhyloP100: 7.37

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]

RYR1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PP2

Missense variant in the RYR1 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 212 curated pathogenic missense variants (we use a threshold of 10). The gene has 94 curated benign missense variants. Gene score misZ: 1.918 (below the threshold of 3.09). Trascript score misZ: 3.9788 (above the threshold of 3.09). GenCC associations: The gene is linked to 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=0.094531685).

BP6

Variant 19-38440788-A-T is Benign according to our data. Variant chr19-38440788-A-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 224362.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=7}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RYR1	NM_000540.3 link	c.89A>T	p.Glu30Val	missense_variant	Exon 2 of 106	ENST00000359596.8	NP_000531.2	P21817-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
RYR1	ENST00000359596.8 link	c.89A>T	p.Glu30Val	missense_variant	Exon 2 of 106	5	NM_000540.3	ENSP00000352608.2	P21817-1
RYR1	ENST00000355481.8 link	c.89A>T	p.Glu30Val	missense_variant	Exon 2 of 105	1		ENSP00000347667.3	P21817-2
RYR1	ENST00000599547.6 link	n.89A>T		non_coding_transcript_exon_variant	Exon 2 of 80	2		ENSP00000471601.2	M0R127

Frequencies

GnomAD3 genomes

AF:

0.000184

AC:

AN:

152108

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00662

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000311

AC:

AN:

237848

Hom.:

AF XY:

0.000354

AC XY:

AN XY:

129926

show subpopulations

Gnomad AFR exome

AF:

0.0000671

Gnomad AMR exome

AF:

0.0000595

Gnomad ASJ exome

AF:

0.00580

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000673

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000104

Gnomad OTH exome

AF:

0.000346

GnomAD4 exome

AF:

0.000182

AC:

265

AN:

1456988

Hom.:

Cov.:

AF XY:

0.000186

AC XY:

135

AN XY:

724586

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000453

Gnomad4 ASJ exome

AF:

0.00597

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000467

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000657

Gnomad4 OTH exome

AF:

0.000499

GnomAD4 genome

AF:

0.000184

AC:

AN:

152108

Hom.:

Cov.:

AF XY:

0.000162

AC XY:

AN XY:

74298

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00662

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000558

Hom.:

Bravo

AF:

0.000208

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000582

AC:

ExAC

AF:

0.000240

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:7Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2Benign:1

Jun 14, 2022

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Reported previously as a heterozygous variant in one individual from a healthy volunteer cohort screened by exome sequencing for variants in RYR1, who upon review of personal history was found to have elevated serum creatine kinase (Gonsalves et al., 2013); Reported in trans with another RYR1 variant in an individual from an atrioventricular septal defect cohort who upon additional review of personal history was not found to have a history suggestive of myopathy (Priest et al., 2016); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 24195946, 27058611) -

Mar 02, 2023

Revvity Omics, Revvity

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Oct 07, 2016

PreventionGenetics, part of Exact Sciences

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Malignant hyperthermia, susceptibility to, 1

Uncertain:2

Jul 01, 2013

Biesecker Lab/Clinical Genomics Section, National Institutes of Health

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: research

- -

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Congenital multicore myopathy with external ophthalmoplegia

Uncertain:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Neuromuscular disease, congenital, with uniform type 1 fiber

Uncertain:1

Jun 14, 2016

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Central core myopathy

Uncertain:1

Jun 14, 2016

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

RYR1-related disorder

Benign:1

Jan 20, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.53

BayesDel_addAF

Uncertain

0.097

BayesDel_noAF

Uncertain

0.12

CADD

Uncertain

DANN

Benign

0.96

DEOGEN2

Pathogenic

0.87

.;D

Eigen

Pathogenic

0.70

Eigen_PC

Uncertain

0.66

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.93

D;D

M_CAP

Pathogenic

0.92

MetaRNN

Benign

0.095

T;T

MetaSVM

Pathogenic

1.1

MutationAssessor

Uncertain

2.7

M;M

PrimateAI

Uncertain

0.68

PROVEAN

Pathogenic

-4.5

D;D

REVEL

Pathogenic

0.92

Sift

Uncertain

0.0010

D;D

Polyphen

1.0

D;D

Vest4

0.55

MVP

0.96

MPC

1.1

ClinPred

0.27

GERP RS

4.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.53

gMVP

0.59

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over