19-38580122-G-A

Variant names:

• chr19-38580122-G-A
• rs118126378
• NM_000540.3:c.14505G>A

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Moderate BP6 BP7 BS1 BS2

The NM_000540.3(RYR1):​c.14505G>A​(p.Gly4835Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00376 in 1,614,194 control chromosomes in the GnomAD database, including 19 homozygotes. 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 0.0033 (1 hom., cov: 31)
  • Exomes 𝑓: 0.0038 (18 hom.)
• Consequence: RYR1 NM_000540.3 synonymous
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:17
• Conservation: PhyloP100: 2.13
• 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), PanelApp Australia, Genomics England PanelApp, Ambry Genetics, ClinGen
• RYR1-related myopathy

  Inheritance: AD, AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, PanelApp Australia
• congenital multicore myopathy with external ophthalmoplegia

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Genomics England PanelApp
• central core myopathy

  Inheritance: AD, AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), 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 -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.39).
• BP6: Variant 19-38580122-G-A is Benign according to our data. Variant chr19-38580122-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 93255.
• BP7: Synonymous conserved (PhyloP=2.13 with no splicing effect.
• BS1: Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00329 (501/152334) while in subpopulation NFE AF = 0.00379 (258/68036). AF 95% confidence interval is 0.00341. There are 1 homozygotes in GnomAd4. There are 241 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.
• BS2: High Homozygotes in GnomAdExome4 at 18 AR,AD gene

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RYR1	NM_000540.3	MANE Select	c.14505G>A	p.Gly4835Gly	synonymous	Exon 100 of 106	NP_000531.2	P21817-1
	RYR1	NM_001042723.2		c.14490G>A	p.Gly4830Gly	synonymous	Exon 99 of 105	NP_001036188.1	P21817-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RYR1	ENST00000359596.8	TSL:5 MANE Select	c.14505G>A	p.Gly4835Gly	synonymous	Exon 100 of 106	ENSP00000352608.2	P21817-1
	RYR1	ENST00000355481.8	TSL:1	c.14490G>A	p.Gly4830Gly	synonymous	Exon 99 of 105	ENSP00000347667.3	P21817-2
	RYR1	ENST00000594335.6	TSL:1	n.*5215G>A		non_coding_transcript_exon	Exon 97 of 103	ENSP00000470927.2	M0R014

Frequencies

GnomAD3 genomes AF: 0.00329 AC: 501 AN: 152216 Hom.: 1 Cov.: 31

Gnomad AFR AF: 0.000651

Gnomad AMI AF: 0.0822

Gnomad AMR AF: 0.00360

Gnomad ASJ AF: 0.000865

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00311

Gnomad FIN AF: 0.00565

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00379

Gnomad OTH AF: 0.00382

GnomAD2 exomes AF: 0.00311 AC: 782 AN: 251144 AF XY: 0.00315

Gnomad AFR exome AF: 0.000738

Gnomad AMR exome AF: 0.00147

Gnomad ASJ exome AF: 0.000496

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00379

Gnomad NFE exome AF: 0.00448

Gnomad OTH exome AF: 0.00326

GnomAD4 exome AF: 0.00381 AC: 5564 AN: 1461860 Hom.: 18 Cov.: 33 AF XY: 0.00377 AC XY: 2742 AN XY: 727232

African (AFR) AF: 0.000747 AC: 25 AN: 33480

American (AMR) AF: 0.00179 AC: 80 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.000536 AC: 14 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00335 AC: 289 AN: 86258

European-Finnish (FIN) AF: 0.00442 AC: 236 AN: 53396

Middle Eastern (MID) AF: 0.00243 AC: 14 AN: 5768

European-Non Finnish (NFE) AF: 0.00423 AC: 4708 AN: 1112006

Other (OTH) AF: 0.00328 AC: 198 AN: 60394

GnomAD4 genome AF: 0.00329 AC: 501 AN: 152334 Hom.: 1 Cov.: 31 AF XY: 0.00324 AC XY: 241 AN XY: 74480

African (AFR) AF: 0.000649 AC: 27 AN: 41584

American (AMR) AF: 0.00360 AC: 55 AN: 15292

Ashkenazi Jewish (ASJ) AF: 0.000865 AC: 3 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5186

South Asian (SAS) AF: 0.00311 AC: 15 AN: 4826

European-Finnish (FIN) AF: 0.00565 AC: 60 AN: 10620

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00379 AC: 258 AN: 68036

Other (OTH) AF: 0.00378 AC: 8 AN: 2114

Alfa AF: 0.00288 Hom.: 0

Bravo AF: 0.00343

Asia WGS AF: 0.00115 AC: 4 AN: 3478

EpiCase AF: 0.00403

EpiControl AF: 0.00498

ClinVar

ClinVar submissions

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
-	1	5	not specified (6)
-	-	5	not provided (5)
-	-	3	Malignant hyperthermia, susceptibility to, 1 (3)
-	-	1	Central core myopathy (1)
-	-	1	Congenital multicore myopathy with external ophthalmoplegia (1)
-	-	1	Neuromuscular disease, congenital, with uniform type 1 fiber (1)
-	-	1	RYR1-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.39
CADD	Benign	6.3
DANN	Benign	0.73
PhyloP100		2.1
Mutation Taster		=99/1	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs118126378; hg19: chr19-39070762;