rs139289704

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_000053.4(ATP7B):​c.1426G>A​(p.Ala476Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000171 in 1,614,078 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00021 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00017 ( 0 hom. )

Consequence

ATP7B
NM_000053.4 missense

Scores

2
17

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:6

Conservation

PhyloP100: -0.549
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 Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.004098952).
BP6
Variant 13-51970609-C-T is Benign according to our data. Variant chr13-51970609-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 284672.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=6, Uncertain_significance=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ATP7BNM_000053.4 linkuse as main transcriptc.1426G>A p.Ala476Thr missense_variant 3/21 ENST00000242839.10 NP_000044.2 P35670-1B7ZLR4A0A024RDX3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ATP7BENST00000242839.10 linkuse as main transcriptc.1426G>A p.Ala476Thr missense_variant 3/211 NM_000053.4 ENSP00000242839.5 P35670-1

Frequencies

GnomAD3 genomes
AF:
0.000210
AC:
32
AN:
152072
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00598
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000521
AC:
130
AN:
249430
Hom.:
0
AF XY:
0.000429
AC XY:
58
AN XY:
135328
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00712
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000165
GnomAD4 exome
AF:
0.000167
AC:
244
AN:
1461888
Hom.:
0
Cov.:
30
AF XY:
0.000158
AC XY:
115
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00582
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.000132
GnomAD4 genome
AF:
0.000210
AC:
32
AN:
152190
Hom.:
1
Cov.:
32
AF XY:
0.000255
AC XY:
19
AN XY:
74396
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00599
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000274
Hom.:
0
Bravo
AF:
0.000397
ExAC
AF:
0.000438
AC:
53
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:6
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Wilson disease Uncertain:1Benign:3
Likely benign, criteria provided, single submitterclinical testingGenome-Nilou LabAug 10, 2021- -
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 29, 2024- -
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJul 10, 2018This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -
Likely benign, criteria provided, single submitterclinical testingColor Diagnostics, LLC DBA Color HealthSep 29, 2022- -
not specified Benign:2
Likely benign, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Nov 16, 2015- -
Likely benign, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpDec 15, 2017Variant summary: The c.1426G>A (p.Ala476Thr) in ATP7B gene is a missense variant involves a non-conserved nucleotide and 3/4 in silico tools used predict benign outcome. The variant is located outside of any known functional domain or repeat, however no functional studies confirming an effect of this change on the protein function were published at the time of evaluation. The variant is present in the control population dataset of gnomAD (0.00048; 133/277032 chrs tested), predominantly in individuals of East Asian descent (0.0069; 131/18868 chrs tested). The frequency of the variant in the East Asian subpopulation exceeds the maximal expected allele frequency for a disease causing allele in ATP7B gene (0.0054), suggesting that this variant may represent a rare ethnic polymorphism. The variant has been reported in at least one affected individual as well as in healthy controls, and is cited as Likely Benign by a reputable database/clinical laboratory. Taken together, the variant was classified as likely benign, until new information becomes available. -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxNov 11, 2020This variant is associated with the following publications: (PMID: 22995429, 29063292, 20465995, 27022412, 20045993, 28515472) -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.070
BayesDel_addAF
Benign
-0.34
T
BayesDel_noAF
Benign
-0.25
CADD
Benign
0.62
DANN
Benign
0.60
DEOGEN2
Benign
0.28
T;T;.;.;.;.
Eigen
Benign
-1.6
Eigen_PC
Benign
-1.7
FATHMM_MKL
Benign
0.014
N
LIST_S2
Benign
0.68
T;T;T;T;T;T
M_CAP
Uncertain
0.17
D
MetaRNN
Benign
0.0041
T;T;T;T;T;T
MetaSVM
Uncertain
0.049
D
MutationAssessor
Benign
0.34
N;.;N;.;.;.
PrimateAI
Benign
0.24
T
PROVEAN
Benign
-0.060
N;N;N;N;.;N
REVEL
Benign
0.18
Sift
Benign
0.67
T;T;T;T;.;T
Sift4G
Benign
0.67
T;T;T;T;T;T
Polyphen
0.0010
B;B;P;B;B;B
Vest4
0.021
MVP
0.74
MPC
0.058
ClinPred
0.0064
T
GERP RS
-7.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.028
gMVP
0.29

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

LitVar

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

Other links and lift over

dbSNP: rs139289704; hg19: chr13-52544745; API