Genetic Variant ATP2C2:p.Ile747Met (chr16-84459294-C-G) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_014861.4(ATP2C2):c.2241C>G(p.Ile747Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000752 in 1,461,872 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

ATP2C2
NM_014861.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.06

Variant links:

Genes affected

ATP2C2 (HGNC:29103): (ATPase secretory pathway Ca2+ transporting 2) Enables P-type calcium transporter activity and P-type manganese transporter activity. Predicted to be involved in calcium ion transmembrane transport; cellular calcium ion homeostasis; and manganese ion transport. Predicted to act upstream of or within mammary gland epithelium development; positive regulation of calcium ion import; and protein localization to plasma membrane. Predicted to be located in trans-Golgi network membrane. Predicted to be active in Golgi membrane; endoplasmic reticulum; and plasma membrane. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

ATP2C2 links:

ATP2C2-AS1 (HGNC:53167): (ATP2C2 antisense RNA 1)

ATP2C2-AS1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.842

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ATP2C2	NM_014861.4 link	c.2241C>G	p.Ile747Met	missense_variant	Exon 23 of 27	ENST00000262429.9	NP_055676.3	O75185-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ATP2C2	ENST00000262429.9 link	c.2241C>G	p.Ile747Met	missense_variant	Exon 23 of 27	1	NM_014861.4	ENSP00000262429.4		O75185-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000401

AC:

AN:

249552

Hom.:

AF XY:

0.00000739

AC XY:

AN XY:

135398

show subpopulations

Gnomad AFR exome

AF:

0.0000646

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000752

AC:

AN:

1461872

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

727240

show subpopulations

Gnomad4 AFR exome

AF:

0.000179

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000450

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000756

ExAC

AF:

0.00000826

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 24, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2241C>G (p.I747M) alteration is located in exon 23 (coding exon 23) of the ATP2C2 gene. This alteration results from a C to G substitution at nucleotide position 2241, causing the isoleucine (I) at amino acid position 747 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.16

BayesDel_addAF

Uncertain

0.12

BayesDel_noAF

Uncertain

0.12

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.17

T;.

Eigen

Uncertain

0.41

Eigen_PC

Uncertain

0.37

FATHMM_MKL

Uncertain

0.83

LIST_S2

Pathogenic

0.98

D;D

M_CAP

Uncertain

0.11

MetaRNN

Pathogenic

0.84

D;D

MetaSVM

Uncertain

0.15

MutationAssessor

Benign

1.7

L;L

PrimateAI

Uncertain

0.73

PROVEAN

Uncertain

-2.9

D;D

REVEL

Pathogenic

0.66

Sift

Pathogenic

0.0

D;D

Sift4G

Benign

0.16

T;T

Polyphen

1.0

D;.

Vest4

0.75

MutPred

0.67

Loss of stability (P = 0.0384);Loss of stability (P = 0.0384);

MVP

0.79

ClinPred

0.97

GERP RS

3.5

Varity_R

0.13

gMVP

0.77

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over