rs367645544

chr15-33750007-A-Cchr15-33750007-A-Gchr15-33750007-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_001036.6(RYR3):c.8228A>C(p.Tyr2743Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000955 in 1,612,458 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 Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Y2743C) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000079 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000097 (0 hom.)
• Consequence: RYR3 NM_001036.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 9.32

Genes affected

RYR3 (HGNC:10485): (ryanodine receptor 3) The protein encoded by this gene is a ryanodine receptor, which functions to release calcium from intracellular storage for use in many cellular processes. For example, the encoded protein is involved in skeletal muscle contraction by releasing calcium from the sarcoplasmic reticulum followed by depolarization of T-tubules. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2011]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.889

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RYR3	NM_001036.6	c.8228A>C	p.Tyr2743Ser	missense_variant	56/104	ENST00000634891.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RYR3	ENST00000634891.2	c.8228A>C	p.Tyr2743Ser	missense_variant	56/104	1	NM_001036.6	P4

Frequencies

GnomAD3 genomes AF: 0.0000789 AC: 12 AN: 152098 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000242

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000655

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: 0.000147

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000446 AC: 11 AN: 246810 Hom.: 0 AF XY: 0.0000374 AC XY: 5 AN XY: 133716

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000291

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000335

Gnomad FIN exome AF: 0.000140

Gnomad NFE exome AF: 0.0000536

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000972 AC: 142 AN: 1460360 Hom.: 0 Cov.: 31 AF XY: 0.000114 AC XY: 83 AN XY: 726234

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000448

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000504

Gnomad4 SAS exome AF: 0.0000117

Gnomad4 FIN exome AF: 0.000225

Gnomad4 NFE exome AF: 0.000103

Gnomad4 OTH exome AF: 0.000182

GnomAD4 genome AF: 0.0000789 AC: 12 AN: 152098 Hom.: 0 Cov.: 32 AF XY: 0.0000538 AC XY: 4 AN XY: 74302

Gnomad4 AFR AF: 0.0000242

Gnomad4 AMR AF: 0.0000655

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000147

Gnomad4 OTH AF: 0.00

Bravo AF: 0.0000982

TwinsUK AF: 0.00 AC: 0

ALSPAC AF: 0.000259 AC: 1

ExAC AF: 0.0000331 AC: 4

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Epileptic encephalopathy Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Jan 16, 2019

This variant is present in population databases (rs367645544, ExAC 0.02%). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals with RYR3-related conditions. This sequence change replaces tyrosine with serine at codon 2743 of the RYR3 protein (p.Tyr2743Ser). The tyrosine residue is highly conserved and there is a large physicochemical difference between tyrosine and serine. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.61
BayesDel_addAF	Pathogenic	0.30	D
BayesDel_noAF	Pathogenic	0.35
Cadd	Uncertain	25
Dann	Uncertain	0.98
DEOGEN2	Uncertain	0.71	D;.;.;.;.
Eigen	Uncertain	0.56
Eigen_PC	Uncertain	0.61
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Pathogenic	0.97	D;D;D;D;D
M_CAP	Uncertain	0.23	D
MetaRNN	Pathogenic	0.89	D;D;D;D;D
MetaSVM	Uncertain	0.33	D
MutationAssessor	Benign	1.8	L;L;.;.;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Pathogenic	0.83	D
Polyphen		1.0	D;D;.;.;.
Vest4		0.83
MutPred		0.74		Gain of disorder (P = 0.0209);Gain of disorder (P = 0.0209);.;Gain of disorder (P = 0.0209);.;
MVP		0.93
MPC		0.88
ClinPred		0.87	D
GERP RS		5.4
Varity_R		0.90
gMVP		0.66

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

Other links and lift over

dbSNP: rs367645544; hg19: chr15-34042208;