19-38442305-G-C

Variant names:

• chr19-38442305-G-C
• rs115526671
• NM_000540.3:c.166-44G>C

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BA1

The NM_000540.3(RYR1):​c.166-44G>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00444 in 1,300,852 control chromosomes in the GnomAD database, including 196 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.021 (122 hom., cov: 30)
  • Exomes 𝑓: 0.0023 (74 hom.)
• Consequence: RYR1 NM_000540.3 intron
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:3
• Conservation: PhyloP100: 0.0640
• Publications: 0 publications found

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

ACMG classification

Our verdict: Benign. The variant received -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-1.02).
• BP6: Variant 19-38442305-G-C is Benign according to our data. Variant chr19-38442305-G-C is described in ClinVar as Benign. ClinVar VariationId is 256461.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0692 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000540.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RYR1	NM_000540.3	MANE Select	c.166-44G>C		intron	N/A	NP_000531.2
	RYR1	NM_001042723.2		c.166-44G>C		intron	N/A	NP_001036188.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RYR1	ENST00000359596.8	TSL:5 MANE Select	c.166-44G>C		intron	N/A	ENSP00000352608.2
	RYR1	ENST00000355481.8	TSL:1	c.166-44G>C		intron	N/A	ENSP00000347667.3
	RYR1	ENST00000594335.6	TSL:1	n.166-44G>C		intron	N/A	ENSP00000470927.2

Frequencies

GnomAD3 genomes AF: 0.0206 AC: 3119 AN: 151340 Hom.: 121 Cov.: 30

Gnomad AFR AF: 0.0715

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00808

Gnomad ASJ AF: 0.00202

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000417

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.000339

Gnomad OTH AF: 0.0139

GnomAD2 exomes AF: 0.00566 AC: 1410 AN: 248992 AF XY: 0.00412

Gnomad AFR exome AF: 0.0738

Gnomad AMR exome AF: 0.00444

Gnomad ASJ exome AF: 0.00312

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000188

Gnomad OTH exome AF: 0.00313

GnomAD4 exome AF: 0.00231 AC: 2650 AN: 1149398 Hom.: 74 Cov.: 16 AF XY: 0.00194 AC XY: 1140 AN XY: 586870

African (AFR) AF: 0.0695 AC: 1901 AN: 27370

American (AMR) AF: 0.00517 AC: 229 AN: 44270

Ashkenazi Jewish (ASJ) AF: 0.00344 AC: 83 AN: 24094

East Asian (EAS) AF: 0.00 AC: 0 AN: 38272

South Asian (SAS) AF: 0.0000999 AC: 8 AN: 80064

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53192

Middle Eastern (MID) AF: 0.00215 AC: 11 AN: 5112

European-Non Finnish (NFE) AF: 0.000177 AC: 146 AN: 826938

Other (OTH) AF: 0.00543 AC: 272 AN: 50086

GnomAD4 genome AF: 0.0206 AC: 3122 AN: 151454 Hom.: 122 Cov.: 30 AF XY: 0.0201 AC XY: 1486 AN XY: 74036

African (AFR) AF: 0.0714 AC: 2937 AN: 41146

American (AMR) AF: 0.00807 AC: 123 AN: 15246

Ashkenazi Jewish (ASJ) AF: 0.00202 AC: 7 AN: 3464

East Asian (EAS) AF: 0.00 AC: 0 AN: 5128

South Asian (SAS) AF: 0.000418 AC: 2 AN: 4790

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10598

Middle Eastern (MID) AF: 0.00340 AC: 1 AN: 294

European-Non Finnish (NFE) AF: 0.000339 AC: 23 AN: 67778

Other (OTH) AF: 0.0138 AC: 29 AN: 2104

Alfa AF: 0.00135 Hom.: 0

Bravo AF: 0.0228

Asia WGS AF: 0.00404 AC: 14 AN: 3478

ClinVar

ClinVar submissions as Germline

Significance: Benign

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	-	2	not provided (2)
-	-	1	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-1.0
CADD	Benign	0.28
DANN	Benign	0.42
PhyloP100		0.064
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs115526671; hg19: chr19-38932945;