rs372575878

Variant names:

• chr1-237506725-C-T
• rs372575878
• NM_001035.3:c.2629C>T

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 2P and 8B. PP2 PP3 BS1 BS2

The NM_001035.3(RYR2):​c.2629C>T​(p.His877Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.0000955 in 1,612,410 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. H877Q) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000039 (0 hom., cov: 33)
  • Exomes 𝑓: 0.00010 (0 hom.)
• Consequence: RYR2 NM_001035.3 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4 B:1
• Conservation: PhyloP100: 6.12
• Publications: 3 publications found

Genes affected

RYR2 (HGNC:10484): (ryanodine receptor 2) This gene encodes a ryanodine receptor found in cardiac muscle sarcoplasmic reticulum. The encoded protein is one of the components of a calcium channel, composed of a tetramer of the ryanodine receptor proteins and a tetramer of FK506 binding protein 1B proteins, that supplies calcium to cardiac muscle. Mutations in this gene are associated with stress-induced polymorphic ventricular tachycardia and arrhythmogenic right ventricular dysplasia. [provided by RefSeq, Jul 2008]

RYR2 Gene-Disease associations (from GenCC):

• arrhythmogenic right ventricular dysplasia 2

  Inheritance: AD Classification: DEFINITIVE, NO_KNOWN Submitted by: Laboratory for Molecular Medicine, Ambry Genetics
• catecholaminergic polymorphic ventricular tachycardia

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, G2P, Orphanet
• catecholaminergic polymorphic ventricular tachycardia 1

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp
• dilated cardiomyopathy

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen
• hypertrophic cardiomyopathy

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen
• arrhythmogenic right ventricular cardiomyopathy

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

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

• PP2: Missense variant in the RYR2 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 195 curated pathogenic missense variants (we use a threshold of 10). The gene has 55 curated benign missense variants. Gene score misZ: 5.7809 (above the threshold of 3.09). Trascript score misZ: 6.4158 (above the threshold of 3.09). GenCC associations: The gene is linked to arrhythmogenic right ventricular cardiomyopathy, hypertrophic cardiomyopathy, arrhythmogenic right ventricular dysplasia 2, catecholaminergic polymorphic ventricular tachycardia 1, catecholaminergic polymorphic ventricular tachycardia, dilated cardiomyopathy.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.751
• BS1: Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.0000394 (6/152100) while in subpopulation NFE AF = 0.0000735 (5/68016). AF 95% confidence interval is 0.0000285. There are 0 homozygotes in GnomAd4. There are 2 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
• BS2: High AC in GnomAd4 at 6 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001035.3. 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
	RYR2	NM_001035.3	MANE Select	c.2629C>T	p.His877Tyr	missense	Exon 23 of 105	NP_001026.2	Q92736-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RYR2	ENST00000366574.7	TSL:1 MANE Select	c.2629C>T	p.His877Tyr	missense	Exon 23 of 105	ENSP00000355533.2	Q92736-1
	RYR2	ENST00000661330.2		c.2629C>T	p.His877Tyr	missense	Exon 23 of 106	ENSP00000499393.2	A0A590UJF6
	RYR2	ENST00000609119.2	TSL:5	n.2629C>T		non_coding_transcript_exon	Exon 23 of 104	ENSP00000499659.2	A0A590UK06

Frequencies

GnomAD3 genomes AF: 0.0000394 AC: 6 AN: 152100 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000654

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000735

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000928 AC: 23 AN: 247810 AF XY: 0.0000968

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000175

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000151

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.000101 AC: 148 AN: 1460310 Hom.: 0 Cov.: 30 AF XY: 0.000110 AC XY: 80 AN XY: 726310

African (AFR) AF: 0.00 AC: 0 AN: 33430

American (AMR) AF: 0.000157 AC: 7 AN: 44586

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26084

East Asian (EAS) AF: 0.00 AC: 0 AN: 39670

South Asian (SAS) AF: 0.00 AC: 0 AN: 85796

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53354

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5756

European-Non Finnish (NFE) AF: 0.000124 AC: 138 AN: 1111310

Other (OTH) AF: 0.0000497 AC: 3 AN: 60324

GnomAD4 genome AF: 0.0000394 AC: 6 AN: 152100 Hom.: 0 Cov.: 33 AF XY: 0.0000269 AC XY: 2 AN XY: 74292

African (AFR) AF: 0.00 AC: 0 AN: 41408

American (AMR) AF: 0.0000654 AC: 1 AN: 15282

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5190

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10592

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000735 AC: 5 AN: 68016

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.0000792 Hom.: 0

Bravo AF: 0.0000793

TwinsUK AF: 0.000539 AC: 2

ALSPAC AF: 0.000519 AC: 2

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000123 AC: 1

ExAC AF: 0.0000994 AC: 12

EpiCase AF: 0.0000545

EpiControl AF: 0.00

ClinVar

ClinVar submissions

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
-	1	-	Cardiomyopathy (1)
-	1	-	Cardiovascular phenotype (1)
-	1	-	Catecholaminergic polymorphic ventricular tachycardia (1)
-	-	1	Catecholaminergic polymorphic ventricular tachycardia 1 (1)
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.18
BayesDel_addAF	Uncertain	0.023	T
BayesDel_noAF	Uncertain	0.060
CADD	Uncertain	25
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.74	D
Eigen	Uncertain	0.57
Eigen_PC	Uncertain	0.62
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.96	D
M_CAP	Uncertain	0.16	D
MetaRNN	Pathogenic	0.75	D
MetaSVM	Uncertain	0.41	D
MutationAssessor	Benign	0.84	L
PhyloP100		6.1
PrimateAI	Uncertain	0.75	T
PROVEAN	Uncertain	-4.0	D
REVEL	Pathogenic	0.70
Sift	Benign	0.57	T
Polyphen		1.0	D
Vest4		0.78
MVP		0.80
MPC		1.2
ClinPred		0.52	D
GERP RS		5.6
Varity_R		0.35
gMVP		0.62
Mutation Taster		=23/77	disease causing

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: rs372575878; hg19: chr1-237670025; COSMIC: COSV100771647;