chr15-33701040-A-G

Position:

chr15-33701040-A-G

Variant summary

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

The ENST00000634891.2(RYR3):c.6443A>G(p.Asn2148Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000013 in 1,613,322 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. N2148N) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000085 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

RYR3
ENST00000634891.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.32

Variant links:

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]

RYR3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RYR3	NM_001036.6 linkuse as main transcript	c.6443A>G	p.Asn2148Ser	missense_variant	42/104	ENST00000634891.2	NP_001027.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RYR3	ENST00000634891.2 linkuse as main transcript	c.6443A>G	p.Asn2148Ser	missense_variant	42/104	1	NM_001036.6	ENSP00000489262	P4	Q15413-1
RYR3	ENST00000389232.9 linkuse as main transcript	c.6443A>G	p.Asn2148Ser	missense_variant	42/104	5		ENSP00000373884	A1
RYR3	ENST00000415757.7 linkuse as main transcript	c.6443A>G	p.Asn2148Ser	missense_variant	42/103	2		ENSP00000399610	A2	Q15413-2
RYR3	ENST00000634418.1 linkuse as main transcript	c.6443A>G	p.Asn2148Ser	missense_variant	42/102	5		ENSP00000489529

Frequencies

GnomAD3 genomes

AF:

0.0000854

AC:

AN:

152164

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000314

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000805

AC:

AN:

248326

Hom.:

AF XY:

0.00

AC XY:

AN XY:

134646

show subpopulations

Gnomad AFR exome

AF:

0.000131

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000548

AC:

AN:

1461158

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

726748

show subpopulations

Gnomad4 AFR exome

AF:

0.000239

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000854

AC:

AN:

152164

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74336

show subpopulations

Gnomad4 AFR

AF:

0.000314

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000869

ESP6500AA

AF:

0.000502

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Epileptic encephalopathy

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Feb 15, 2020

This sequence change replaces asparagine with serine at codon 2148 of the RYR3 protein (p.Asn2148Ser). The asparagine residue is highly conserved and there is a small physicochemical difference between asparagine and serine. This variant is present in population databases (rs200035756, ExAC 0.01%). 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 sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site, but this prediction has not been confirmed by published transcriptional studies. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has not been reported in the literature in individuals with RYR3-related disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.18

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.16

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Pathogenic

0.85

D;.;.;.;.

Eigen

Benign

0.11

Eigen_PC

Uncertain

0.26

FATHMM_MKL

Uncertain

0.85

LIST_S2

Pathogenic

0.99

D;D;D;D;D

M_CAP

Uncertain

0.17

MetaRNN

Uncertain

0.74

D;D;D;D;D

MetaSVM

Uncertain

0.45

MutationAssessor

Uncertain

2.0

M;M;.;.;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Pathogenic

0.79

PROVEAN

Uncertain

-4.2

.;D;D;.;.

REVEL

Uncertain

0.45

Sift

Benign

0.086

.;T;T;.;.

Polyphen

0.037

B;B;.;.;.

Vest4

0.79

MVP

0.88

MPC

0.65

ClinPred

0.98

GERP RS

4.7

Varity_R

0.24

gMVP

0.57

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.18

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over