12-89603048-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2 PP2 BP4_Moderate

The NM_001366521.1(ATP2B1):c.3055G>C(p.Val1019Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: ATP2B1 NM_001366521.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.61

Genes affected

ATP2B1 (HGNC:814): (ATPase plasma membrane Ca2+ transporting 1) 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 1. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, ATP2B1
• BP4: Computational evidence support a benign effect (MetaRNN=0.21738306).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ATP2B1	NM_001366521.1	c.3055G>C	p.Val1019Leu	missense_variant	18/21	ENST00000428670.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ATP2B1	ENST00000428670.8	c.3055G>C	p.Val1019Leu	missense_variant	18/21	5	NM_001366521.1	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Aug 25, 2023

Variant summary: ATP2B1 c.3055G>C (p.Val1019Leu) results in a conservative amino acid change located in the cation-transporting P-type ATPase, C-terminal domain (IPR006068) of the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant was absent in 250126 control chromosomes (gnomAD). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. To our knowledge, no occurrence of c.3055G>C in individuals affected with Autosomal Dominant Intellectual Developmental Disorder and no experimental evidence demonstrating its impact on protein function have been reported. No submitters have cited clinical-significance assessments for this variant to ClinVar after 2014. Based on the evidence outlined above, the variant was classified as uncertain significance. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Uncertain	0.066	T
BayesDel_noAF	Benign	-0.14
Cadd	Benign	21
Dann	Benign	0.95
Eigen	Benign	-0.19
Eigen_PC	Benign	-0.066
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.89	D;D;.;D
M_CAP	Benign	0.021	T
MetaRNN	Benign	0.22	T;T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	-0.23	N;N;N;.
MutationTaster	Benign	1.0	D;D;D;D;N
PrimateAI	Pathogenic	0.80	T
PROVEAN	Benign	-0.89	N;N;N;N
REVEL	Uncertain	0.34
Sift	Benign	0.33	T;T;T;T
Sift4G	Benign	0.63	T;T;T;T
Polyphen		0.0020	B;.;.;.
Vest4		0.39
MutPred		0.42		Gain of catalytic residue at Q1020 (P = 5e-04);Gain of catalytic residue at Q1020 (P = 5e-04);Gain of catalytic residue at Q1020 (P = 5e-04);.;
MVP		0.52
MPC		1.2
ClinPred		0.59	D
GERP RS		4.1
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.072
gMVP		0.89

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr12-89996825;