Genetic Variant ATP9B:p.Ala48Val (chr18-79096499-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_198531.5(ATP9B):c.143C>T(p.Ala48Val) variant causes a missense change. The variant allele was found at a frequency of 0.000341 in 1,613,830 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00036 ( 1 hom. )

Consequence

ATP9B
NM_198531.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.16

Variant links:

Genes affected

ATP9B (HGNC:13541): (ATPase phospholipid transporting 9B (putative)) Predicted to enable ATPase-coupled intramembrane lipid transporter activity. Predicted to be involved in endocytosis; phospholipid translocation; and retrograde vesicle-mediated transport, Golgi to endoplasmic reticulum. Located in perinuclear region of cytoplasm and trans-Golgi network. [provided by Alliance of Genome Resources, Apr 2022]

ATP9B links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.04473728).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ATP9B	NM_198531.5 link	c.143C>T	p.Ala48Val	missense_variant	Exon 2 of 30	ENST00000426216.6	NP_940933.3	O43861-1B3KSI8Q7Z3J4Q69YZ7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ATP9B	ENST00000426216.6 link	c.143C>T	p.Ala48Val	missense_variant	Exon 2 of 30	5	NM_198531.5	ENSP00000398076.2		O43861-1

Frequencies

GnomAD3 genomes

AF:

0.000151

AC:

AN:

152054

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00116

Gnomad SAS

AF:

0.000829

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00949

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000291

AC:

AN:

251184

Hom.:

AF XY:

0.000346

AC XY:

AN XY:

135750

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.0000290

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000870

Gnomad SAS exome

AF:

0.000980

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000185

Gnomad OTH exome

AF:

0.000653

GnomAD4 exome

AF:

0.000361

AC:

528

AN:

1461658

Hom.:

Cov.:

AF XY:

0.000421

AC XY:

306

AN XY:

727142

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.0000895

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00479

Gnomad4 SAS exome

AF:

0.00103

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000157

Gnomad4 OTH exome

AF:

0.000414

GnomAD4 genome

AF:

0.000151

AC:

AN:

152172

Hom.:

Cov.:

AF XY:

0.000188

AC XY:

AN XY:

74390

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00116

Gnomad4 SAS

AF:

0.00104

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000132

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000190

Hom.:

Bravo

AF:

0.0000907

ExAC

AF:

0.000296

AC:

Asia WGS

AF:

0.00115

AC:

AN:

3478

EpiCase

AF:

0.000218

EpiControl

AF:

0.000237

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 23, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.143C>T (p.A48V) alteration is located in exon 2 (coding exon 2) of the ATP9B gene. This alteration results from a C to T substitution at nucleotide position 143, causing the alanine (A) at amino acid position 48 to be replaced by a valine (V). 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

0.099

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.29

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.053

T;.;.

Eigen

Benign

0.076

Eigen_PC

Uncertain

0.25

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.96

D;D;D

M_CAP

Benign

0.018

MetaRNN

Benign

0.045

T;T;T

MetaSVM

Benign

-0.99

MutationAssessor

Benign

0.69

N;N;.

PrimateAI

Uncertain

0.69

PROVEAN

Benign

-0.60

N;N;.

REVEL

Benign

0.075

Sift

Benign

0.15

T;T;.

Sift4G

Benign

0.33

T;T;T

Polyphen

0.25

B;B;P

Vest4

0.40

MVP

0.75

MPC

0.29

ClinPred

0.022

GERP RS

5.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.082

gMVP

0.44

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.

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