rs749085322

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3PP5

The NM_000053.4(ATP7B):​c.3505A>G​(p.Met1169Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000632 in 1,614,086 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000068 ( 0 hom. )

Consequence

ATP7B
NM_000053.4 missense

Scores

8
7
4

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:3U:3

Conservation

PhyloP100: 7.97
Variant links:
Genes affected
ATP7B (HGNC:870): (ATPase copper transporting beta) This gene is a member of the P-type cation transport ATPase family and encodes a protein with several membrane-spanning domains, an ATPase consensus sequence, a hinge domain, a phosphorylation site, and at least 2 putative copper-binding sites. This protein is a monomer, and functions as a copper-transporting ATPase which exports copper out of the cells, such as the efflux of hepatic copper into the bile. Alternate transcriptional splice variants, encoding different isoforms with distinct cellular localizations, have been characterized. Mutations in this gene have been associated with Wilson disease which is characterized by copper accumulation. [provided by RefSeq, Dec 2019]

Genome browser will be placed here

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, 0.837
PP5
Variant 13-51941132-T-C is Pathogenic according to our data. Variant chr13-51941132-T-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 210485.We mark this variant Likely_pathogenic, oryginal submissions are: {Likely_pathogenic=3, Uncertain_significance=2}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ATP7BNM_000053.4 linkc.3505A>G p.Met1169Val missense_variant Exon 16 of 21 ENST00000242839.10 NP_000044.2 P35670-1B7ZLR4A0A024RDX3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ATP7BENST00000242839.10 linkc.3505A>G p.Met1169Val missense_variant Exon 16 of 21 1 NM_000053.4 ENSP00000242839.5 P35670-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152196
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000401
AC:
10
AN:
249592
Hom.:
0
AF XY:
0.0000295
AC XY:
4
AN XY:
135410
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
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:
0.0000794
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000677
AC:
99
AN:
1461890
Hom.:
0
Cov.:
30
AF XY:
0.0000646
AC XY:
47
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
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:
0.0000863
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152196
Hom.:
0
Cov.:
31
AF XY:
0.0000403
AC XY:
3
AN XY:
74352
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000540
Hom.:
0
ExAC
AF:
0.0000248
AC:
3
EpiCase
AF:
0.000109
EpiControl
AF:
0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:3Uncertain:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Wilson disease Pathogenic:2Uncertain:3
Oct 28, 2014
Genetic Services Laboratory, University of Chicago
Significance: Likely pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Oct 30, 2023
Zotz-Klimas Genetics Lab, MVZ Zotz Klimas
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Dec 12, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces methionine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 1169 of the ATP7B protein (p.Met1169Val). This variant is present in population databases (rs749085322, gnomAD 0.008%). This missense change has been observed in individual(s) with Wilson disease (PMID: 7626145, 20517649, 35220961, 36096368). ClinVar contains an entry for this variant (Variation ID: 210485). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt ATP7B protein function with a positive predictive value of 80%. Experimental studies have shown that this missense change affects ATP7B function (PMID: 18203200). 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. -

Mar 01, 2024
Fulgent Genetics, Fulgent Genetics
Significance: Likely pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Sep 23, 2024
All of Us Research Program, National Institutes of Health
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This missense variant replaces methionine with valine at codon 1169 of the ATP7B protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function (internally defined REVEL score threshold >= 0.7, PMID: 27666373). Functional studies have shown that this variant causes a mild copper transport deficit (PMID: 18203200). This variant has been reported in individuals affected with Wilson disease (PMID: 18203200, 20517649, 36096368). This variant has been identified in 11/280976 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -

not provided Pathogenic:1
Feb 23, 2024
Mayo Clinic Laboratories, Mayo Clinic
Significance: Likely pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

PP3, PM2, PM3, PS3_moderate -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.24
BayesDel_addAF
Pathogenic
0.34
D
BayesDel_noAF
Pathogenic
0.44
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.85
D;D;.;.;.;.;.
Eigen
Uncertain
0.31
Eigen_PC
Uncertain
0.42
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.97
D;D;D;D;D;D;D
M_CAP
Pathogenic
0.57
D
MetaRNN
Pathogenic
0.84
D;D;D;D;D;D;D
MetaSVM
Pathogenic
0.89
D
MutationAssessor
Benign
0.050
N;.;.;.;.;.;.
PrimateAI
Uncertain
0.52
T
PROVEAN
Uncertain
-3.5
D;D;D;D;D;.;D
REVEL
Pathogenic
0.85
Sift
Uncertain
0.0020
D;D;D;D;D;.;D
Sift4G
Benign
0.12
T;T;T;T;D;T;T
Polyphen
0.81
P;P;D;B;D;B;D
Vest4
0.77
MutPred
0.49
Loss of helix (P = 0.0376);.;.;.;.;.;.;
MVP
0.97
MPC
0.38
ClinPred
0.54
D
GERP RS
5.0
Varity_R
0.81
gMVP
0.84

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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.

Other links and lift over

dbSNP: rs749085322; hg19: chr13-52515268; API