Genetic Variant ATP7B:p.Gln1004Arg (chr13-51946333-T-C) – ACMG Classification: Likely_pathogenic (7 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM1PM2PM5PP2

The NM_000053.4(ATP7B):c.3011A>G(p.Gln1004Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000124 in 1,608,012 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. Q1004P) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

ATP7B
NM_000053.4 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 4.18

Publications

4 publications found

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]

ATP7B Gene-Disease associations (from GenCC):

Wilson disease
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Genomics England PanelApp, Orphanet, Labcorp Genetics (formerly Invitae)

ATP7B links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

PM1

In a hotspot region, there are 14 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 11 uncertain in NM_000053.4

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr13-51946333-T-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 157943.

PP2

Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 198 curated pathogenic missense variants (we use a threshold of 10). The gene has 32 curated benign missense variants. Gene score misZ: -0.88091 (below the threshold of 3.09). Trascript score misZ: 0.82063 (below the threshold of 3.09). GenCC associations: The gene is linked to Wilson disease.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000053.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
ATP7B	NM_000053.4	MANE Select	c.3011A>G	p.Gln1004Arg	missense	Exon 13 of 21	NP_000044.2
ATP7B	NM_001406511.1		c.3011A>G	p.Gln1004Arg	missense	Exon 14 of 22	NP_001393440.1
ATP7B	NM_001406512.1		c.3011A>G	p.Gln1004Arg	missense	Exon 14 of 22	NP_001393441.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
ATP7B	ENST00000242839.10	TSL:1 MANE Select	c.3011A>G	p.Gln1004Arg	missense	Exon 13 of 21	ENSP00000242839.5
ATP7B	ENST00000634844.1	TSL:1	c.2867A>G	p.Gln956Arg	missense	Exon 13 of 21	ENSP00000489398.1
ATP7B	ENST00000448424.7	TSL:1	c.2759A>G	p.Gln920Arg	missense	Exon 11 of 19	ENSP00000416738.3

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152250

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00

AC:

AN:

238686

AF XY:

0.00

Gnomad AFR exome

AF:

0.00

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.87e-7

AC:

AN:

1455762

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

723740

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33380

American (AMR)

AF:

0.00

AC:

AN:

43996

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26002

East Asian (EAS)

AF:

0.00

AC:

AN:

39556

South Asian (SAS)

AF:

0.00

AC:

AN:

85328

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52992

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4712

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1109696

Other (OTH)

AF:

0.0000166

AC:

AN:

60100

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152250

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74388

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41474

American (AMR)

AF:

0.00

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68046

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Wilson disease (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Pathogenic

0.24

BayesDel_noAF

Uncertain

0.10

CADD

Benign

(source)

DANN

Benign

0.97

DEOGEN2

Pathogenic

0.81

Eigen

Benign

-0.0081

Eigen_PC

Benign

0.064

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.87

M_CAP

Uncertain

0.26

MetaRNN

Uncertain

0.55

MetaSVM

Uncertain

0.27

MutationAssessor

Benign

-0.34

PhyloP100

4.2

PrimateAI

Uncertain

0.73

PROVEAN

Uncertain

-2.9

REVEL

Pathogenic

0.65

Sift

Benign

0.23

Sift4G

Benign

0.29

Polyphen

0.91

Vest4

0.49

MutPred

0.48

Gain of methylation at Q1004 (P = 0.0062)

MVP

0.94

MPC

0.077

ClinPred

0.86

GERP RS

5.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.46

gMVP

0.87

Mutation Taster

=27/73

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over