NM_001036.6:c.1492G>A

Variant names:

• chr15-33581562-G-A
• rs1264434931
• NM_001036.6:c.1492G>A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001036.6(RYR3):​c.1492G>A​(p.Val498Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000242 in 1,613,248 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000020 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000025 (0 hom.)
• Consequence: RYR3 NM_001036.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.24

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 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.21534717).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RYR3	NM_001036.6	c.1492G>A	p.Val498Ile	missense_variant	Exon 14 of 104	ENST00000634891.2	NP_001027.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RYR3	ENST00000634891.2	c.1492G>A	p.Val498Ile	missense_variant	Exon 14 of 104	1	NM_001036.6	ENSP00000489262.1

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152186 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: 0.000193

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.0000943

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000321 AC: 8 AN: 249028 Hom.: 0 AF XY: 0.0000296 AC XY: 4 AN XY: 135092

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000869

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.0000928

Gnomad NFE exome AF: 0.0000177

Gnomad OTH exome AF: 0.000165

GnomAD4 exome AF: 0.0000246 AC: 36 AN: 1460944 Hom.: 0 Cov.: 31 AF XY: 0.0000261 AC XY: 19 AN XY: 726804

Gnomad4 AFR exome AF: 0.0000897

Gnomad4 AMR exome AF: 0.000112

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.0000348

Gnomad4 FIN exome AF: 0.0000562

Gnomad4 NFE exome AF: 0.0000153

Gnomad4 OTH exome AF: 0.0000331

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152304 Hom.: 0 Cov.: 33 AF XY: 0.0000269 AC XY: 2 AN XY: 74476

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.0000653

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000193

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.0000943

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000434 Hom.: 0

Bravo AF: 0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Epileptic encephalopathy Uncertain:1

Nov 28, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

ClinVar contains an entry for this variant (Variation ID: 461883). This variant is present in population databases (no rsID available, gnomAD 0.009%). This variant has not been reported in the literature in individuals affected with RYR3-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The isoleucine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. This sequence change replaces valine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 498 of the RYR3 protein (p.Val498Ile). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.080
BayesDel_addAF	Benign	-0.28	T
BayesDel_noAF	Benign	-0.44
CADD	Benign	20
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.54	D;.;.;.;.
Eigen	Benign	-0.23
Eigen_PC	Benign	-0.12
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Benign	0.83	T;T;T;T;T
M_CAP	Benign	0.036	D
MetaRNN	Benign	0.22	T;T;T;T;T
MetaSVM	Benign	-0.53	T
MutationAssessor	Benign	0.0	N;N;.;.;.
PrimateAI	Benign	0.39	T
PROVEAN	Benign	-0.90	.;N;N;.;.
REVEL	Uncertain	0.30
Sift	Benign	0.12	.;T;T;.;.
Polyphen		0.22	B;P;.;.;.
Vest4		0.033
MutPred		0.76		Gain of catalytic residue at V498 (P = 0.2101);Gain of catalytic residue at V498 (P = 0.2101);Gain of catalytic residue at V498 (P = 0.2101);Gain of catalytic residue at V498 (P = 0.2101);Gain of catalytic residue at V498 (P = 0.2101);
MVP		0.49
MPC		0.17
ClinPred		0.15	T
GERP RS		4.5
Varity_R		0.10
gMVP		0.27

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

Publications

LitVar

Other links and lift over

dbSNP: rs1264434931; hg19: chr15-33873763; COSMIC: COSV66776349;