chr19-38448637-CT-C

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4BP7BS1

This summary comes from the ClinGen Evidence Repository: The c.985-11del (NM_000540.3(RYR1):c.958-11del) variant in RYR1 is an intronic variant, located in intron 10 and 11 bases upstream of exon 11. The filtering allele frequency (the lower threshold of the 95% CI of 1684/64032 with 32 homozygous observations) of the c.958-11del variant in RYR1 is 0.0001110 for European (non-Finnish) chromosomes by gnomAD v4.1, which is higher than the ClinGen Congenital Myopathies VCEP threshold (≥0.0000006) for BS1, and therefore meets this criterion (BS1). The computational splicing predictor SpliceAI gives a score of 0.05 for acceptor gain, suggesting that the variant has no impact on splicing. In addition, it occurs at a nucleotide that is not conserved as shown by UCSC genome browser (BP4/BP7). In summary, this variant meets the criteria to be classified as likely benign for RYR1-related myopathies, based on the ACMG/AMP criteria applied, as specified by the ClinGen Congenital Myopathies VCEP: BS1, BP4, BP7 (Congenital Myopathies VCEP Specifications Version 1; 8/7/2024). LINK:https://erepo.genome.network/evrepo/ui/classification/CA073846/MONDO:0100150/179

Frequency

Genomes: 𝑓 0.0020 ( 7 hom., cov: 31)

Exomes 𝑓: 0.0011 ( 24 hom. )

Consequence

RYR1
NM_000540.3 intron

Scores

Not classified

Clinical Significance

Likely benign reviewed by expert panel B:9

Conservation

PhyloP100: 1.45

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

malignant hyperthermia, susceptibility to, 1
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Genomics England PanelApp, Ambry Genetics
congenital multicore myopathy with external ophthalmoplegia
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Genomics England PanelApp
RYR1-related myopathy
Inheritance: AR, AD Classification: DEFINITIVE Submitted by: ClinGen
central core myopathy
Inheritance: AD, AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp
King-Denborough syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
malignant hyperthermia of anesthesia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
autosomal recessive centronuclear myopathy
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
benign Samaritan congenital myopathy
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
congenital myopathy with myasthenic-like onset
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
lethal multiple pterygium syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

RYR1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

For more information check the summary or visit ClinGen Evidence Repository.

BP7

For more information check the summary or visit ClinGen Evidence Repository.

BS1

For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RYR1	NM_000540.3 link	c.958-11delT		intron_variant	Intron 10 of 105	ENST00000359596.8	NP_000531.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RYR1	ENST00000359596.8 link	c.958-11delT		intron_variant	Intron 10 of 105	5	NM_000540.3	ENSP00000352608.2

Frequencies

GnomAD3 genomes

AF:

0.00200

AC:

304

AN:

152248

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:

0.000192

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0257

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000382

Gnomad OTH

AF:

0.00191

GnomAD2 exomes

AF:

0.00269

AC:

677

AN:

251324

AF XY:

0.00255

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 FIN exome

AF:

0.0276

Gnomad NFE exome

AF:

0.000590

Gnomad OTH exome

AF:

0.00212

GnomAD4 exome

AF:

0.00112

AC:

1632

AN:

1461870

Hom.:

Cov.:

AF XY:

0.00105

AC XY:

764

AN XY:

727240

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.0264

AC:

1411

AN:

53404

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000129

AC:

143

AN:

1112006

Other (OTH)

AF:

0.00126

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.483

Heterozygous variant carriers

102

204

307

409

511

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00200

AC:

304

AN:

152366

Hom.:

Cov.:

AF XY:

0.00319

AC XY:

238

AN XY:

74506

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41594

American (AMR)

AF:

0.00

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000193

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.0257

AC:

273

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000382

AC:

AN:

68034

Other (OTH)

AF:

0.00189

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00124

Hom.:

Bravo

AF:

0.0000756

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:9

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Malignant hyperthermia, susceptibility to, 1

Benign:2

Nov 06, 2022

Color Diagnostics, LLC DBA Color Health

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jan 11, 2024

All of Us Research Program, National Institutes of Health

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Benign:1

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

RYR1-related disorder

Benign:1

Jan 30, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Malignant hyperthermia of anesthesia

Benign:1

Jun 14, 2016

Illumina Laboratory Services, Illumina

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

RYR1-related myopathy

Benign:1

Aug 07, 2024

ClinGen Congenital Myopathies Variant Curation Expert Panel, ClinGen

Significance:Likely benign

Review Status:reviewed by expert panel

Collection Method:curation

The c.985-11del (NM_000540.3(RYR1):c.958-11del) variant in RYR1 is an intronic variant, located in intron 10 and 11 bases upstream of exon 11. The filtering allele frequency (the lower threshold of the 95% CI of 1684/64032 with 32 homozygous observations) of the c.958-11del variant in RYR1 is 0.0001110 for European (non-Finnish) chromosomes by gnomAD v4.1, which is higher than the ClinGen Congenital Myopathies VCEP threshold (≥0.0000006) for BS1, and therefore meets this criterion (BS1). The computational splicing predictor SpliceAI gives a score of 0.05 for acceptor gain, suggesting that the variant has no impact on splicing. In addition, it occurs at a nucleotide that is not conserved as shown by UCSC genome browser (BP4/BP7). In summary, this variant meets the criteria to be classified as likely benign for RYR1-related myopathies, based on the ACMG/AMP criteria applied, as specified by the ClinGen Congenital Myopathies VCEP: BS1, BP4, BP7 (Congenital Myopathies VCEP Specifications Version 1; 8/7/2024). -

Multiminicore myopathy

Benign:1

Jun 14, 2016

Illumina Laboratory Services, Illumina

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Neuromuscular disease, congenital, with uniform type 1 fiber

Benign:1

Jun 14, 2016

Illumina Laboratory Services, Illumina

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Central core myopathy

Benign:1

Jun 14, 2016

Illumina Laboratory Services, Illumina

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

1.4

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over