rs893985839

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_022089.4(ATP13A2):​c.1630C>T​(p.Arg544Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000207 in 1,590,754 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R544H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000018 ( 1 hom. )

Consequence

ATP13A2
NM_022089.4 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 1.21

Publications

1 publications found
Variant links:
Genes affected
ATP13A2 (HGNC:30213): (ATPase cation transporting 13A2) This gene encodes a member of the P5 subfamily of ATPases which transports inorganic cations as well as other substrates. Mutations in this gene are associated with Kufor-Rakeb syndrome (KRS), also referred to as Parkinson disease 9. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Nov 2008]
ATP13A2 Gene-Disease associations (from GenCC):
  • Kufor-Rakeb syndrome
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Illumina, Genomics England PanelApp, G2P, ClinGen
  • autosomal recessive spastic paraplegia type 78
    Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Genomics England PanelApp, Orphanet, Labcorp Genetics (formerly Invitae)
  • parkinsonism due to ATP13A2 deficiency
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.17383605).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ATP13A2NM_022089.4 linkc.1630C>T p.Arg544Cys missense_variant Exon 16 of 29 ENST00000326735.13 NP_071372.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ATP13A2ENST00000326735.13 linkc.1630C>T p.Arg544Cys missense_variant Exon 16 of 29 1 NM_022089.4 ENSP00000327214.8 Q9NQ11-1

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152202
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000441
AC:
9
AN:
203984
AF XY:
0.0000540
show subpopulations
Gnomad AFR exome
AF:
0.0000853
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000907
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000181
AC:
26
AN:
1438552
Hom.:
1
Cov.:
31
AF XY:
0.0000238
AC XY:
17
AN XY:
713614
show subpopulations
African (AFR)
AF:
0.0000303
AC:
1
AN:
33036
American (AMR)
AF:
0.00
AC:
0
AN:
41502
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25592
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38402
South Asian (SAS)
AF:
0.0000121
AC:
1
AN:
82978
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50636
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5300
European-Non Finnish (NFE)
AF:
0.0000182
AC:
20
AN:
1101660
Other (OTH)
AF:
0.0000673
AC:
4
AN:
59446
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
2
4
6
8
10
<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:
0.0000460
AC:
7
AN:
152202
Hom.:
0
Cov.:
33
AF XY:
0.0000538
AC XY:
4
AN XY:
74360
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000965
AC:
4
AN:
41462
American (AMR)
AF:
0.00
AC:
0
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68022
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000285388), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.396
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00
Hom.:
0
Bravo
AF:
0.0000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Kufor-Rakeb syndrome;C5567893:Autosomal recessive spastic paraplegia type 78 Uncertain:1
Jul 14, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 544 of the ATP13A2 protein (p.Arg544Cys). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with ATP13A2-related conditions. ClinVar contains an entry for this variant (Variation ID: 578934). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt ATP13A2 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Inborn genetic diseases Uncertain:1
Apr 07, 2022
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.1630C>T (p.R544C) alteration is located in exon 16 (coding exon 16) of the ATP13A2 gene. This alteration results from a C to T substitution at nucleotide position 1630, causing the arginine (R) at amino acid position 544 to be replaced by a cysteine (C). 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
0.087
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Benign
-0.35
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.52
D;.;.
Eigen
Benign
-0.26
Eigen_PC
Benign
-0.15
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Benign
0.82
T;T;T
M_CAP
Benign
0.074
D
MetaRNN
Benign
0.17
T;T;T
MetaSVM
Benign
-0.66
T
MutationAssessor
Benign
1.9
L;.;.
PhyloP100
1.2
PrimateAI
Benign
0.37
T
PROVEAN
Uncertain
-2.9
D;D;D
REVEL
Benign
0.091
Sift
Benign
0.090
T;T;T
Sift4G
Benign
0.13
T;T;T
Polyphen
0.0020
B;.;.
Vest4
0.26
MutPred
0.47
Loss of solvent accessibility (P = 0.002);.;.;
MVP
0.59
MPC
0.47
ClinPred
0.082
T
GERP RS
1.8
Varity_R
0.21
gMVP
0.69
Mutation Taster
=90/10
polymorphism

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: rs893985839; hg19: chr1-17320243; API