dbSNP rs61996329: RYR3:p.Asn2148Lys (chr15-33701041-T-A) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_001036.6(RYR3):c.6444T>A(p.Asn2148Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,088 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N2148S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

RYR3
NM_001036.6 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.245

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

genetic developmental and epileptic encephalopathy
Inheritance: AD Classification: LIMITED Submitted by: ClinGen, G2P
congenital myopathy
Inheritance: AR Classification: NO_KNOWN Submitted by: ClinGen

RYR3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.825

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001036.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RYR3	NM_001036.6	MANE Select	c.6444T>A	p.Asn2148Lys	missense	Exon 42 of 104	NP_001027.3
	RYR3	NM_001243996.4		c.6444T>A	p.Asn2148Lys	missense	Exon 42 of 103	NP_001230925.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
RYR3	ENST00000634891.2	TSL:1 MANE Select	c.6444T>A	p.Asn2148Lys	missense	Exon 42 of 104	ENSP00000489262.1
RYR3	ENST00000389232.9	TSL:5	c.6444T>A	p.Asn2148Lys	missense	Exon 42 of 104	ENSP00000373884.5
RYR3	ENST00000415757.7	TSL:2	c.6444T>A	p.Asn2148Lys	missense	Exon 42 of 103	ENSP00000399610.3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461088

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726722

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33466

American (AMR)

AF:

0.00

AC:

AN:

44678

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26122

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86002

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53382

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

9.00e-7

AC:

AN:

1111628

Other (OTH)

AF:

0.00

AC:

AN:

60344

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.89

BayesDel_addAF

Uncertain

0.075

BayesDel_noAF

Benign

-0.13

CADD

Benign

2.7

(source)

DANN

Uncertain

0.99

DEOGEN2

Pathogenic

0.92

Eigen

Benign

-0.76

Eigen_PC

Benign

-0.77

FATHMM_MKL

Benign

0.14

LIST_S2

Pathogenic

0.99

M_CAP

Uncertain

0.26

MetaRNN

Pathogenic

0.82

MetaSVM

Uncertain

-0.17

MutationAssessor

Uncertain

2.4

PhyloP100

-0.24

PrimateAI

Pathogenic

0.87

PROVEAN

Pathogenic

-5.2

REVEL

Uncertain

0.45

Sift

Uncertain

0.0050

Polyphen

0.019

Vest4

0.91

MutPred

0.54

Gain of ubiquitination at N2148 (P = 0.0085)

MVP

0.82

MPC

0.79

ClinPred

0.99

GERP RS

-3.9

Varity_R

0.63

gMVP

0.76

Mutation Taster

=66/34

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over