rs367904817

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PP2PP3

The NM_152296.5(ATP1A3):​c.1654G>C​(p.Glu552Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000373 in 1,606,876 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E552K) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

ATP1A3
NM_152296.5 missense

Scores

2
3
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.64

Publications

4 publications found
Variant links:
Genes affected
ATP1A3 (HGNC:801): (ATPase Na+/K+ transporting subunit alpha 3) 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 3 subunit. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2012]
ATP1A3 Gene-Disease associations (from GenCC):
  • alternating hemiplegia of childhood 2
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Genomics England PanelApp, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • ATP1A3-associated neurological disorder
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen, Illumina
  • cerebellar ataxia-areflexia-pes cavus-optic atrophy-sensorineural hearing loss syndrome
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)
  • developmental and epileptic encephalopathy 99
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
  • dystonia 12
    Inheritance: AD Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Genomics England PanelApp, Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)
  • encephalopathy, acute, infection-induced
    Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
  • alternating hemiplegia of childhood
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • complex neurodevelopmental disorder
    Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PP2
Missense variant in the ATP1A3 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 110 curated pathogenic missense variants (we use a threshold of 10). The gene has 22 curated benign missense variants. Gene score misZ: 6.3327 (above the threshold of 3.09). Trascript score misZ: 9.1232 (above the threshold of 3.09). GenCC associations: The gene is linked to alternating hemiplegia of childhood 2, developmental and epileptic encephalopathy 99, ATP1A3-associated neurological disorder, cerebellar ataxia-areflexia-pes cavus-optic atrophy-sensorineural hearing loss syndrome, dystonia 12, alternating hemiplegia of childhood, encephalopathy, acute, infection-induced, complex neurodevelopmental disorder.
PP3
Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ATP1A3NM_152296.5 linkc.1654G>C p.Glu552Gln missense_variant Exon 13 of 23 ENST00000648268.1 NP_689509.1
ATP1A3NM_001256214.2 linkc.1693G>C p.Glu565Gln missense_variant Exon 13 of 23 NP_001243143.1
ATP1A3NM_001256213.2 linkc.1687G>C p.Glu563Gln missense_variant Exon 13 of 23 NP_001243142.1
ATP1A3XM_047438862.1 linkc.1564G>C p.Glu522Gln missense_variant Exon 13 of 23 XP_047294818.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ATP1A3ENST00000648268.1 linkc.1654G>C p.Glu552Gln missense_variant Exon 13 of 23 NM_152296.5 ENSP00000498113.1
ENSG00000285505ENST00000644613.1 linkn.1654G>C non_coding_transcript_exon_variant Exon 13 of 25 ENSP00000494711.1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152174
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
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
GnomAD4 exome
AF:
0.00000275
AC:
4
AN:
1454702
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
722974
show subpopulations
African (AFR)
AF:
0.0000598
AC:
2
AN:
33448
American (AMR)
AF:
0.00
AC:
0
AN:
42752
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25842
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39470
South Asian (SAS)
AF:
0.0000234
AC:
2
AN:
85330
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52970
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1108958
Other (OTH)
AF:
0.00
AC:
0
AN:
60168
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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
AF:
0.0000131
AC:
2
AN:
152174
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74330
show subpopulations
African (AFR)
AF:
0.0000483
AC:
2
AN:
41434
American (AMR)
AF:
0.00
AC:
0
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000264
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Dystonia 12 Uncertain:1
Dec 02, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces glutamic acid, which is acidic and polar, with glutamine, which is neutral and polar, at codon 552 of the ATP1A3 protein (p.Glu552Gln). This variant is not present in population databases (gnomAD no frequency). 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. 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 tolerated. ClinVar contains an entry for this variant (Variation ID: 573096). This variant has not been reported in the literature in individuals affected with ATP1A3-related conditions.

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
-0.010
T
BayesDel_noAF
Benign
-0.25
CADD
Pathogenic
30
DANN
Uncertain
0.99
DEOGEN2
Benign
0.16
T;T;T;.;.
Eigen
Benign
-0.34
Eigen_PC
Benign
-0.17
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Benign
0.0
.;D;D;D;D
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.19
T;T;T;T;T
MetaSVM
Benign
-0.64
T
MutationAssessor
Benign
0.56
N;N;.;.;.
PhyloP100
2.6
PrimateAI
Uncertain
0.56
T
PROVEAN
Benign
0.0
.;N;.;N;N
REVEL
Benign
0.0
Sift
Pathogenic
0.0
.;T;.;T;T
Sift4G
Pathogenic
0.0
.;T;T;T;T
Vest4
0.0
ClinPred
0.42
T
GERP RS
4.4
Varity_R
0.11
gMVP
0.80
Mutation Taster
=70/30
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.65
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.65
Position offset: -3

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs367904817; hg19: chr19-42482455; API