chr19-38466153-C-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.2933C>T(p.Pro978Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000136 in 1,613,238 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 0.00017 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

RYR1
NM_000540.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 7.85

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=0.24297324).

BP6

Variant 19-38466153-C-T is Benign according to our data. Variant chr19-38466153-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 449276.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=2}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RYR1	NM_000540.3 link	c.2933C>T	p.Pro978Leu	missense_variant	Exon 24 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.2933C>T	p.Pro978Leu	missense_variant	Exon 24 of 106	5	NM_000540.3	ENSP00000352608.2	P21817-1
RYR1	ENST00000355481.8 link	c.2933C>T	p.Pro978Leu	missense_variant	Exon 24 of 105	1		ENSP00000347667.3	P21817-2
RYR1	ENST00000594111.1 link	n.26C>T		non_coding_transcript_exon_variant	Exon 1 of 2	2
RYR1	ENST00000599547.6 link	n.2933C>T		non_coding_transcript_exon_variant	Exon 24 of 80	2		ENSP00000471601.2	M0R127

Frequencies

GnomAD3 genomes

AF:

0.000171

AC:

AN:

152152

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00207

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000255

AC:

AN:

247048

Hom.:

AF XY:

0.000283

AC XY:

AN XY:

134146

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00251

Gnomad NFE exome

AF:

0.0000898

Gnomad OTH exome

AF:

0.000166

GnomAD4 exome

AF:

0.000132

AC:

193

AN:

1461086

Hom.:

Cov.:

AF XY:

0.000150

AC XY:

109

AN XY:

726858

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00274

Gnomad4 NFE exome

AF:

0.0000360

Gnomad4 OTH exome

AF:

0.000133

GnomAD4 genome

AF:

0.000171

AC:

AN:

152152

Hom.:

Cov.:

AF XY:

0.000229

AC XY:

AN XY:

74324

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00207

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000474

Hom.:

Bravo

AF:

0.0000416

ExAC

AF:

0.000198

AC:

Asia WGS

AF:

0.00115

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Aug 08, 2017

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The P978L variant in the RYR1 gene has not been reported previously as a pathogenic variant, nor as a benign variant, to our knowledge. The P978L variant is observed in 13/5020 alleles (0.259%) alleles from individuals of Finnish background in the ExAC dataset (Lek et al., 2016). The P978L variant is a semi-conservative amino acid substitution, which may impact secondary protein structure as these residues differ in some properties. This substitution occurs at a position that is conserved across species. In silico analysis predicts this variant is probably damaging to the protein structure/function. We interpret P978L as a variant of uncertain significance. -

Nov 20, 2017

PreventionGenetics, part of Exact Sciences

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

RYR1-related disorder

Benign:1

Jan 30, 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

Benign

0.22

BayesDel_addAF

Uncertain

0.030

BayesDel_noAF

Uncertain

0.0

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.80

.;D

Eigen

Uncertain

0.63

Eigen_PC

Uncertain

0.53

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.91

D;D

M_CAP

Pathogenic

0.55

MetaRNN

Benign

0.24

T;T

MetaSVM

Pathogenic

0.84

MutationAssessor

Uncertain

2.6

M;M

PrimateAI

Uncertain

0.74

PROVEAN

Pathogenic

-7.7

D;D

REVEL

Pathogenic

0.70

Sift

Uncertain

0.013

D;D

Polyphen

1.0

D;D

Vest4

0.58

MVP

0.97

MPC

0.96

ClinPred

0.75

GERP RS

3.8

Varity_R

0.59

gMVP

0.50

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