rs35272495

Positions:

• chr19-41969513-G-A
• chr19-41969513-G-C

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BS1 BS2

The NM_152296.5(ATP1A3):​c.2610C>T​(p.Pro870=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00204 in 1,614,140 control chromosomes in the GnomAD database, including 30 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. P870P) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.0074 (12 hom., cov: 32)
  • Exomes 𝑓: 0.0015 (18 hom.)
• Consequence: ATP1A3 NM_152296.5 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:10
• Conservation: PhyloP100: -3.59

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]

ACMG classification

Verdict is Benign. Variant got -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.78).
• BP6: Variant 19-41969513-G-A is Benign according to our data. Variant chr19-41969513-G-A is described in ClinVar as [Benign]. Clinvar id is 329403.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=-3.59 with no splicing effect.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00739 (1125/152250) while in subpopulation AFR AF= 0.0216 (896/41542). AF 95% confidence interval is 0.0204. There are 12 homozygotes in gnomad4. There are 549 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 1125 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ATP1A3	NM_152296.5	c.2610C>T	p.Pro870=	synonymous_variant	19/23	ENST00000648268.1
ATP1A3	NM_001256214.2	c.2649C>T	p.Pro883=	synonymous_variant	19/23
ATP1A3	NM_001256213.2	c.2643C>T	p.Pro881=	synonymous_variant	19/23
ATP1A3	XM_047438862.1	c.2520C>T	p.Pro840=	synonymous_variant	19/23

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ATP1A3	ENST00000648268.1	c.2610C>T	p.Pro870=	synonymous_variant	19/23		NM_152296.5

Frequencies

GnomAD3 genomes AF: 0.00740 AC: 1126 AN: 152132 Hom.: 12 Cov.: 32

Gnomad AFR AF: 0.0216

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00360

Gnomad ASJ AF: 0.0395

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000353

Gnomad OTH AF: 0.00622

GnomAD3 exomes AF: 0.00364 AC: 915 AN: 251480 Hom.: 10 AF XY: 0.00294 AC XY: 399 AN XY: 135914

Gnomad AFR exome AF: 0.0231

Gnomad AMR exome AF: 0.00202

Gnomad ASJ exome AF: 0.0380

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.000131

Gnomad FIN exome AF: 0.0000462

Gnomad NFE exome AF: 0.000492

Gnomad OTH exome AF: 0.00423

GnomAD4 exome AF: 0.00149 AC: 2172 AN: 1461890 Hom.: 18 Cov.: 32 AF XY: 0.00138 AC XY: 1004 AN XY: 727246

Gnomad4 AFR exome AF: 0.0184

Gnomad4 AMR exome AF: 0.00221

Gnomad4 ASJ exome AF: 0.0357

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000162

Gnomad4 FIN exome AF: 0.0000187

Gnomad4 NFE exome AF: 0.000231

Gnomad4 OTH exome AF: 0.00406

GnomAD4 genome AF: 0.00739 AC: 1125 AN: 152250 Hom.: 12 Cov.: 32 AF XY: 0.00738 AC XY: 549 AN XY: 74430

Gnomad4 AFR AF: 0.0216

Gnomad4 AMR AF: 0.00360

Gnomad4 ASJ AF: 0.0395

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000353

Gnomad4 OTH AF: 0.00616

Alfa AF: 0.00549 Hom.: 3

Bravo AF: 0.00831

EpiCase AF: 0.000763

EpiControl AF: 0.00101

ClinVar

Significance: Benign

Submissions summary: Benign:10

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Dystonia 12 Benign:3

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 30, 2024	- -
Benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 12, 2018	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. -
Benign, criteria provided, single submitter	clinical testing	Genome-Nilou Lab	Dec 05, 2021	- -

not provided Benign:3

Benign, criteria provided, single submitter	clinical testing	Athena Diagnostics	Sep 25, 2017	- -
Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Aug 08, 2018	- -

Alternating hemiplegia of childhood 2 Benign:2

Benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 12, 2018	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. -
Benign, criteria provided, single submitter	clinical testing	Genome-Nilou Lab	Dec 05, 2021	- -

Developmental and epileptic encephalopathy 99 Benign:1

Benign, criteria provided, single submitter

clinical testing

Genome-Nilou Lab

Dec 05, 2021

- -

Cerebellar ataxia-areflexia-pes cavus-optic atrophy-sensorineural hearing loss syndrome Benign:1

Benign, criteria provided, single submitter

clinical testing

Genome-Nilou Lab

Dec 05, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.78
CADD	Benign	0.88
DANN	Benign	0.64

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

LitVar

Other links and lift over

dbSNP: rs35272495; hg19: chr19-42473665; COSMIC: COSV57487594;