rs2217342

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_152296.5(ATP1A3):​c.666T>G​(p.Thr222Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.904 in 1,614,130 control chromosomes in the GnomAD database, including 660,671 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. T222T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.92 ( 64869 hom., cov: 33)
Exomes 𝑓: 0.90 ( 595802 hom. )

Consequence

ATP1A3
NM_152296.5 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:15

Conservation

PhyloP100: -4.07

Publications

38 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: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.96).
BP6
Variant 19-41985364-A-C is Benign according to our data. Variant chr19-41985364-A-C is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 157926.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-4.07 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.973 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ATP1A3NM_152296.5 linkc.666T>G p.Thr222Thr synonymous_variant Exon 7 of 23 ENST00000648268.1 NP_689509.1 P13637-1Q53ES0
ATP1A3NM_001256214.2 linkc.705T>G p.Thr235Thr synonymous_variant Exon 7 of 23 NP_001243143.1 P13637-3Q53ES0
ATP1A3NM_001256213.2 linkc.699T>G p.Thr233Thr synonymous_variant Exon 7 of 23 NP_001243142.1 P13637-2Q53ES0
ATP1A3XM_047438862.1 linkc.576T>G p.Thr192Thr synonymous_variant Exon 7 of 23 XP_047294818.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ATP1A3ENST00000648268.1 linkc.666T>G p.Thr222Thr synonymous_variant Exon 7 of 23 NM_152296.5 ENSP00000498113.1 P13637-1
ENSG00000285505ENST00000644613.1 linkn.666T>G non_coding_transcript_exon_variant Exon 7 of 25 ENSP00000494711.1 A0A2R8YEY8

Frequencies

GnomAD3 genomes
AF:
0.922
AC:
140238
AN:
152138
Hom.:
64804
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.981
Gnomad AMI
AF:
0.931
Gnomad AMR
AF:
0.883
Gnomad ASJ
AF:
0.863
Gnomad EAS
AF:
0.876
Gnomad SAS
AF:
0.821
Gnomad FIN
AF:
0.942
Gnomad MID
AF:
0.797
Gnomad NFE
AF:
0.907
Gnomad OTH
AF:
0.887
GnomAD2 exomes
AF:
0.890
AC:
223667
AN:
251436
AF XY:
0.885
show subpopulations
Gnomad AFR exome
AF:
0.985
Gnomad AMR exome
AF:
0.858
Gnomad ASJ exome
AF:
0.865
Gnomad EAS exome
AF:
0.870
Gnomad FIN exome
AF:
0.938
Gnomad NFE exome
AF:
0.902
Gnomad OTH exome
AF:
0.886
GnomAD4 exome
AF:
0.902
AC:
1318948
AN:
1461874
Hom.:
595802
Cov.:
79
AF XY:
0.899
AC XY:
653920
AN XY:
727238
show subpopulations
African (AFR)
AF:
0.984
AC:
32954
AN:
33480
American (AMR)
AF:
0.858
AC:
38355
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.863
AC:
22553
AN:
26136
East Asian (EAS)
AF:
0.878
AC:
34853
AN:
39700
South Asian (SAS)
AF:
0.819
AC:
70658
AN:
86256
European-Finnish (FIN)
AF:
0.939
AC:
50158
AN:
53420
Middle Eastern (MID)
AF:
0.795
AC:
4587
AN:
5768
European-Non Finnish (NFE)
AF:
0.909
AC:
1010704
AN:
1111996
Other (OTH)
AF:
0.896
AC:
54126
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
8435
16869
25304
33738
42173
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
21482
42964
64446
85928
107410
<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:
0.922
AC:
140367
AN:
152256
Hom.:
64869
Cov.:
33
AF XY:
0.921
AC XY:
68525
AN XY:
74438
show subpopulations
African (AFR)
AF:
0.981
AC:
40758
AN:
41550
American (AMR)
AF:
0.883
AC:
13502
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.863
AC:
2995
AN:
3472
East Asian (EAS)
AF:
0.875
AC:
4528
AN:
5172
South Asian (SAS)
AF:
0.822
AC:
3970
AN:
4828
European-Finnish (FIN)
AF:
0.942
AC:
10000
AN:
10618
Middle Eastern (MID)
AF:
0.796
AC:
234
AN:
294
European-Non Finnish (NFE)
AF:
0.907
AC:
61653
AN:
68006
Other (OTH)
AF:
0.889
AC:
1878
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
569
1138
1706
2275
2844
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
906
1812
2718
3624
4530
<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:
0.903
Hom.:
103293
Bravo
AF:
0.920
EpiCase
AF:
0.894
EpiControl
AF:
0.897

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:15
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:6
Jul 15, 2024
Unidad de Genómica Garrahan, Hospital de Pediatría Garrahan
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is classified as Benign based on local population frequency. This variant was detected in 98% of patients studied in a panel designed for Epileptic and Developmental Encephalopathy and Progressive Myoclonus Epilepsy. Number of patients: 91. Only high quality variants are reported. -

Oct 31, 2013
Genetic Services Laboratory, University of Chicago
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
Genome Diagnostics Laboratory, Amsterdam University Medical Center
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Dystonia 12 Benign:3
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Feb 04, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jul 14, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:3
Jul 05, 2018
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Apr 20, 2017
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Alternating hemiplegia of childhood 2 Benign:2
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Jul 14, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Cerebellar ataxia-areflexia-pes cavus-optic atrophy-sensorineural hearing loss syndrome Benign:1
Jul 14, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.96
CADD
Benign
0.012
DANN
Benign
0.19
PhyloP100
-4.1
Mutation Taster
=99/1
polymorphism (auto)

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

Other links and lift over

dbSNP: rs2217342; hg19: chr19-42489516; COSMIC: COSV57488667; COSMIC: COSV57488667; API