rs761597771

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 3P and 18B. PM1PP2BP4_ModerateBP6_Very_StrongBS1BS2

The NM_000702.4(ATP1A2):c.2636G>A(p.Arg879Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000427 in 1,614,074 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R879W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000046 ( 1 hom. )

Consequence

ATP1A2
NM_000702.4 missense

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.914

Variant links:

Genes affected

ATP1A2 (HGNC:800): (ATPase Na+/K+ transporting subunit alpha 2) The protein encoded by this gene belongs to the family of P-type cation transport ATPases, and to the subfamily of Na+/K+ -ATPases. Na+/K+ -ATPase is an integral membrane protein responsible for establishing and maintaining the electrochemical gradients of Na and K ions across the plasma membrane. These gradients are essential for osmoregulation, for sodium-coupled transport of a variety of organic and inorganic molecules, and for electrical excitability of nerve and muscle. This enzyme is composed of two subunits, a large catalytic subunit (alpha) and a smaller glycoprotein subunit (beta). The catalytic subunit of Na+/K+ -ATPase is encoded by multiple genes. This gene encodes an alpha 2 subunit. Mutations in this gene result in familial basilar or hemiplegic migraines, and in a rare syndrome known as alternating hemiplegia of childhood. [provided by RefSeq, Oct 2008]

ATP1A2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -15 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 6 uncertain in NM_000702.4

PP2

Missense variant where missense usually causes diseases, ATP1A2

BP4

Computational evidence support a benign effect (MetaRNN=0.1308026).

BP6

Variant 1-160136642-G-A is Benign according to our data. Variant chr1-160136642-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 238168.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-160136642-G-A is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population sas. gnomad4_exome allele frequency = 0.0000458 (67/1461890) while in subpopulation SAS AF= 0.000487 (42/86258). AF 95% confidence interval is 0.00037. There are 1 homozygotes in gnomad4_exome. There are 42 alleles in male gnomad4_exome subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High AC in GnomAdExome at 17 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ATP1A2	NM_000702.4 linkuse as main transcript	c.2636G>A	p.Arg879Gln	missense_variant	19/23	ENST00000361216.8
ATP1A2	XM_047421286.1 linkuse as main transcript	c.1745G>A	p.Arg582Gln	missense_variant	12/16

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ATP1A2	ENST00000361216.8 linkuse as main transcript	c.2636G>A	p.Arg879Gln	missense_variant	19/23	1	NM_000702.4	P1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000676

AC:

AN:

251406

Hom.:

AF XY:

0.0000810

AC XY:

AN XY:

135870

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:

0.000457

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000264

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000458

AC:

AN:

1461890

Hom.:

Cov.:

AF XY:

0.0000578

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000487

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000198

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152184

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74342

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000312

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.0000412

AC:

ClinVar

Significance: Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Inborn genetic diseases

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

May 14, 2022

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

ATP1A2-related condition

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Apr 04, 2023

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

May 31, 2019

See Variant Classification Assertion Criteria. -

Familial hemiplegic migraine

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Invitae

Jan 21, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.089

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.18

Cadd

Uncertain

Dann

Benign

0.97

DEOGEN2

Uncertain

0.54

D;.

Eigen

Benign

-0.38

Eigen_PC

Benign

-0.25

FATHMM_MKL

Benign

0.25

LIST_S2

Uncertain

0.90

D;D

M_CAP

Benign

0.025

MetaRNN

Benign

0.13

T;T

MetaSVM

Benign

-0.46

MutationAssessor

Benign

1.9

M;.

MutationTaster

Benign

0.91

D;D

PrimateAI

Benign

0.41

PROVEAN

Benign

-0.50

N;N

REVEL

Benign

0.28

Sift

Benign

0.46

T;T

Sift4G

Benign

0.63

T;T

Polyphen

0.0010

B;.

Vest4

0.32

MutPred

0.31

Gain of sheet (P = 0.0477);Gain of sheet (P = 0.0477);

MVP

0.83

MPC

1.5

ClinPred

0.12

GERP RS

4.7

Varity_R

0.095

gMVP

0.62

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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