X-153536429-GG-AA

Variant names:

• chrX-153536429-GG-AA
• NM_001001344.3:c.182_183delGGinsAA
• ATP2B3 p.Arg61Gln

Variant summary

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

The NM_001001344.3(ATP2B3):​c.182_183delGGinsAA​(p.Arg61Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. It is difficult to determine the true allele frequency of this variant because it is of type MNV, and the frequency of such variant types in population databases may be underestimated and unreliable. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar.

• Frequency: Genomes: not found (cov: 25)
• Consequence: ATP2B3 NM_001001344.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.335
• Publications: 0 publications found

Genes affected

ATP2B3 (HGNC:816): (ATPase plasma membrane Ca2+ transporting 3) The protein encoded by this gene belongs to the family of P-type primary ion transport ATPases characterized by the formation of an aspartyl phosphate intermediate during the reaction cycle. These enzymes remove bivalent calcium ions from eukaryotic cells against very large concentration gradients and play a critical role in intracellular calcium homeostasis. The mammalian plasma membrane calcium ATPase isoforms are encoded by at least four separate genes and the diversity of these enzymes is further increased by alternative splicing of transcripts. The expression of different isoforms and splice variants is regulated in a developmental, tissue- and cell type-specific manner, suggesting that these pumps are functionally adapted to the physiological needs of particular cells and tissues. This gene encodes the plasma membrane calcium ATPase isoform 3. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]

ATP2B3 Gene-Disease associations (from GenCC):

• X-linked progressive cerebellar ataxia

  Inheritance: Unknown, XL Classification: STRONG, MODERATE Submitted by: Genomics England PanelApp, Ambry Genetics, Labcorp Genetics (formerly Invitae)
• X-linked non progressive cerebellar ataxia

  Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001001344.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ATP2B3	NM_001001344.3	MANE Select	c.182_183delGGinsAA	p.Arg61Gln	missense	N/A	NP_001001344.1	Q16720-1
	ATP2B3	NM_001388362.1		c.182_183delGGinsAA	p.Arg61Gln	missense	N/A	NP_001375291.1
	ATP2B3	NM_001388361.1		c.182_183delGGinsAA	p.Arg61Gln	missense	N/A	NP_001375290.1	Q16720-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ATP2B3	ENST00000263519.5	TSL:1 MANE Select	c.182_183delGGinsAA	p.Arg61Gln	missense	N/A	ENSP00000263519.4	Q16720-1
	ATP2B3	ENST00000359149.9	TSL:1	c.182_183delGGinsAA	p.Arg61Gln	missense	N/A	ENSP00000352062.3	Q16720-2
	ATP2B3	ENST00000496610.2	TSL:3	c.182_183delGGinsAA	p.Arg61Gln	missense	N/A	ENSP00000516173.1	A0A994J5M1

Frequencies

GnomAD3 genomes Cov.: 25

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 25

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		0.34

Splicing

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chrX-152801887;