chr16-28878789-G-A

Position:

chr16-28878789-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_004320.6(ATP2A1):c.118G>A(p.Glu40Lys) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000294 in 1,461,580 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000029 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

ATP2A1
NM_004320.6 missense, splice_region

Scores

Splicing: ADA: 0.9990

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.36

Variant links:

Genes affected

ATP2A1 (HGNC:811): (ATPase sarcoplasmic/endoplasmic reticulum Ca2+ transporting 1) This gene encodes one of the SERCA Ca(2+)-ATPases, which are intracellular pumps located in the sarcoplasmic or endoplasmic reticula of muscle cells. This enzyme catalyzes the hydrolysis of ATP coupled with the translocation of calcium from the cytosol to the sarcoplasmic reticulum lumen, and is involved in muscular excitation and contraction. Mutations in this gene cause some autosomal recessive forms of Brody disease, characterized by increasing impairment of muscular relaxation during exercise. Alternative splicing results in three transcript variants encoding different isoforms. [provided by RefSeq, Oct 2013]

ATP2A1 links:

ATP2A1-AS1 (HGNC:51370): (ATP2A1 antisense RNA 1)

ATP2A1-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. Scorers claiming Benign: max_spliceai.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ATP2A1	NM_004320.6 linkuse as main transcript	c.118G>A	p.Glu40Lys	missense_variant, splice_region_variant	1/23	ENST00000395503.9
ATP2A1	NM_173201.5 linkuse as main transcript	c.118G>A	p.Glu40Lys	missense_variant, splice_region_variant	1/22

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ATP2A1	ENST00000395503.9 linkuse as main transcript	c.118G>A	p.Glu40Lys	missense_variant, splice_region_variant	1/23	1	NM_004320.6	P4	O14983-2
ATP2A1-AS1	ENST00000691192.2 linkuse as main transcript	n.1148C>T		non_coding_transcript_exon_variant	1/1
ATP2A1	ENST00000357084.7 linkuse as main transcript	c.118G>A	p.Glu40Lys	missense_variant, splice_region_variant	1/22	2		A1	O14983-1

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

AN:

152156

Hom.:

Cov.:

FAILED QC

Gnomad AFR

AF:

0.00

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:

0.00000797

AC:

AN:

250830

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135640

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000294

AC:

AN:

1461580

Hom.:

Cov.:

AF XY:

0.0000358

AC XY:

AN XY:

727116

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

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:

0.0000351

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

Data not reliable, filtered out with message: AC0;AS_VQSR

AF:

0.00

AC:

AN:

152274

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74458

Gnomad4 AFR

AF:

0.00

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

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Brody myopathy

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Sep 07, 2022

This variant has not been reported in the literature in individuals affected with ATP2A1-related conditions. 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. Variants that disrupt the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. 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"). ClinVar contains an entry for this variant (Variation ID: 1503806). This variant is present in population databases (rs762501478, gnomAD 0.002%). This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 40 of the ATP2A1 protein (p.Glu40Lys). This variant also falls at the last nucleotide of exon 1, which is part of the consensus splice site for this exon. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.85

BayesDel_addAF

Pathogenic

0.22

BayesDel_noAF

Uncertain

0.090

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.62

D;.

Eigen

Uncertain

0.26

Eigen_PC

Uncertain

0.37

FATHMM_MKL

Uncertain

0.93

LIST_S2

Pathogenic

0.99

D;D

M_CAP

Pathogenic

0.32

MetaRNN

Pathogenic

0.84

D;D

MetaSVM

Uncertain

-0.025

MutationAssessor

Benign

1.7

L;L

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.67

PROVEAN

Uncertain

-2.9

D;D

REVEL

Pathogenic

0.76

Sift

Uncertain

0.024

D;D

Sift4G

Benign

0.10

T;T

Polyphen

0.037

B;B

Vest4

0.76

MutPred

0.73

Gain of ubiquitination at E40 (P = 0.0258);Gain of ubiquitination at E40 (P = 0.0258);

MVP

0.85

MPC

1.4

ClinPred

0.97

GERP RS

4.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.8

Varity_R

0.61

gMVP

0.66

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

1.0

dbscSNV1_RF

Pathogenic

0.94

SpliceAI score (max)

0.050

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