19-38523042-C-T

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 1P and 0B. PP2

The NM_000540.3(RYR1):c.10274C>T(p.Thr3425Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000133 in 1,602,230 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00014 ( 0 hom. )

Consequence

RYR1
NM_000540.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:6B:1

Conservation

PhyloP100: 2.71

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 Uncertain_significance. Variant got 1 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.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RYR1	NM_000540.3 link	c.10274C>T	p.Thr3425Met	missense_variant	Exon 68 of 106	ENST00000359596.8	NP_000531.2	P21817-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RYR1	ENST00000359596.8 link	c.10274C>T	p.Thr3425Met	missense_variant	Exon 68 of 106	5	NM_000540.3	ENSP00000352608.2		P21817-1

Frequencies

GnomAD3 genomes

AF:

0.0000790

AC:

AN:

151974

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000831

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000883

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.000118

AC:

AN:

229004

Hom.:

AF XY:

0.000120

AC XY:

AN XY:

124720

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000105

Gnomad EAS exome

AF:

0.000118

Gnomad SAS exome

AF:

0.000479

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000890

Gnomad OTH exome

AF:

0.000177

GnomAD4 exome

AF:

0.000139

AC:

201

AN:

1450138

Hom.:

Cov.:

AF XY:

0.000144

AC XY:

104

AN XY:

720624

show subpopulations

Gnomad4 AFR exome

AF:

0.0000301

Gnomad4 AMR exome

AF:

0.0000470

Gnomad4 ASJ exome

AF:

0.0000386

Gnomad4 EAS exome

AF:

0.0000254

Gnomad4 SAS exome

AF:

0.000470

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000135

Gnomad4 OTH exome

AF:

0.000100

GnomAD4 genome

AF:

0.0000789

AC:

AN:

152092

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74354

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000832

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000883

Gnomad4 OTH

AF:

0.000474

Alfa

AF:

0.000130

Hom.:

Bravo

AF:

0.0000718

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000909

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:6Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:3

Mar 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Apr 01, 2021

Revvity Omics, Revvity

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jun 21, 2024

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Inborn genetic diseases

Uncertain:1

Sep 20, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.10274C>T (p.T3425M) alteration is located in exon 68 (coding exon 68) of the RYR1 gene. This alteration results from a C to T substitution at nucleotide position 10274, causing the threonine (T) at amino acid position 3425 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

RYR1-related myopathy

Uncertain:1

May 21, 2020

Victorian Clinical Genetics Services, Murdoch Childrens Research Institute

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

A heterozygous missense variant was identified, NM_000540.2(RYR1):c.10274C>T in exon 68 of 106 of the RYR1 gene. This substitution is predicted to create a moderate amino acid change from a threonine to a methionine at position 3425 of the protein; NP_000531.2(RYR1):p.(Thr3425Met). The threonine at this position has low conservation (100 vertebrates, UCSC), and is not situated in a known functional domain. In silico software predictions of the pathogenicity of this variant are conflicting (Polyphen, SIFT, CADD, Mutation Taster). The variant is present in the gnomAD database at a global population frequency of 0.012% (27 heterozygotes, 0 homozygotes) with a South Asian sub-population frequency of 0.048%. Two alternative residue changes at the same location have been reported in the gnomAD database at a frequency of 0.015% and 0.0026%. This variant has been previously reported as a VUS in patient with RYR1-related disorder (ClinVar). Based on information available at the time of curation, this variant has been classified as a VUS. -

Central core myopathy

Uncertain:1

Mar 01, 2019

Baylor Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -

RYR1-related disorder

Benign:1

Nov 04, 2024

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

Benign

0.12

BayesDel_addAF

Benign

-0.050

BayesDel_noAF

Uncertain

0.020

CADD

Uncertain

DANN

Benign

0.91

DEOGEN2

Uncertain

0.45

.;T

Eigen

Benign

-0.024

Eigen_PC

Benign

-0.0059

FATHMM_MKL

Uncertain

0.85

LIST_S2

Uncertain

0.93

D;D

M_CAP

Pathogenic

0.53

MetaRNN

Uncertain

0.62

D;D

MetaSVM

Uncertain

0.64

MutationAssessor

Benign

1.4

L;L

PrimateAI

Benign

0.37

PROVEAN

Benign

-2.1

N;N

REVEL

Uncertain

0.51

Sift

Uncertain

0.0010

D;D

Polyphen

0.65

P;P

Vest4

0.73

MVP

0.95

MPC

0.32

ClinPred

0.12

GERP RS

3.0

Varity_R

0.16

gMVP

0.39

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