chr15-33860646-G-A

Position:

• chr15-33860646-G-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.14351G>A​(p.Arg4784Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000278 in 1,439,994 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000028 (0 hom.)
• Consequence: RYR3 NM_001036.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.46

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]

(HGNC:):

AVEN (HGNC:13509): (apoptosis and caspase activation inhibitor) Involved in negative regulation of apoptotic process. Located in membrane. [provided by Alliance of Genome Resources, Apr 2022]

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=0.18327177).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RYR3	NM_001036.6	c.14351G>A	p.Arg4784Gln	missense_variant	101/104	ENST00000634891.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RYR3	ENST00000634891.2	c.14351G>A	p.Arg4784Gln	missense_variant	101/104	1	NM_001036.6	P4
	ENST00000560268.2	n.70-1552C>T		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000278 AC: 4 AN: 1439994 Hom.: 0 Cov.: 28 AF XY: 0.00000280 AC XY: 2 AN XY: 714608

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.0000388

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.0000190

Gnomad4 NFE exome AF: 9.10e-7

Gnomad4 OTH exome AF: 0.0000168

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 02, 2023

The c.14351G>A (p.R4784Q) alteration is located in exon 101 (coding exon 101) of the RYR3 gene. This alteration results from a G to A substitution at nucleotide position 14351, causing the arginine (R) at amino acid position 4784 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.26
BayesDel_addAF	Uncertain	0.092	D
BayesDel_noAF	Benign	-0.11
CADD	Benign	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.38	T;.;.;.;.;.
Eigen	Benign	-0.13
Eigen_PC	Benign	0.065
FATHMM_MKL	Uncertain	0.87	D
LIST_S2	Uncertain	0.96	D;D;D;D;D;D
M_CAP	Benign	0.049	D
MetaRNN	Benign	0.18	T;T;T;T;T;T
MetaSVM	Uncertain	0.13	D
MutationAssessor	Benign	-0.26	N;.;.;.;.;.
MutationTaster	Benign	0.72	N;N
PrimateAI	Uncertain	0.77	T
PROVEAN	Benign	-1.7	.;N;.;.;.;.
REVEL	Uncertain	0.35
Sift	Benign	0.061	.;T;.;.;.;.
Sift4G	Uncertain	0.042	.;.;.;.;.;D
Polyphen		0.62	P;B;.;.;.;.
Vest4		0.41
MutPred		0.22		Gain of disorder (P = 0.1187);.;.;.;.;.;
MVP		0.87
MPC		0.93
ClinPred		0.80	D
GERP RS		5.2
Varity_R		0.12
gMVP		0.64

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: rs1300407225; hg19: chr15-34152847;