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GeneBe

18-79096577-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_198531.5(ATP9B):c.221G>A(p.Arg74Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000155 in 1,614,054 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

ATP9B
NM_198531.5 missense

Scores

2
4
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.07
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ATP9BNM_198531.5 linkuse as main transcriptc.221G>A p.Arg74Gln missense_variant 2/30 ENST00000426216.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ATP9BENST00000426216.6 linkuse as main transcriptc.221G>A p.Arg74Gln missense_variant 2/305 NM_198531.5 A1O43861-1

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152148
Hom.:
0
Cov.:
32
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:
0.000770
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
GnomAD3 exomes
AF:
0.0000398
AC:
10
AN:
251312
Hom.:
0
AF XY:
0.0000368
AC XY:
5
AN XY:
135822
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000435
Gnomad SAS 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:
0.0000130
AC:
19
AN:
1461788
Hom.:
0
Cov.:
31
AF XY:
0.0000124
AC XY:
9
AN XY:
727196
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000353
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152266
Hom.:
0
Cov.:
32
AF XY:
0.0000672
AC XY:
5
AN XY:
74440
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000772
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000340
ExAC
AF:
0.0000247
AC:
3

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMay 22, 2023The c.221G>A (p.R74Q) alteration is located in exon 2 (coding exon 2) of the ATP9B gene. This alteration results from a G to A substitution at nucleotide position 221, causing the arginine (R) at amino acid position 74 to be replaced by a glutamine (Q). 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
0.098
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.21
Cadd
Uncertain
23
Dann
Uncertain
1.0
DEOGEN2
Benign
0.048
T;.;.;T
Eigen
Benign
-0.28
Eigen_PC
Benign
-0.28
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.99
D;D;D;D
M_CAP
Uncertain
0.089
D
MetaRNN
Uncertain
0.52
D;D;D;D
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
2.0
M;M;.;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Benign
0.47
T
PROVEAN
Benign
-0.35
N;N;.;N
REVEL
Uncertain
0.34
Sift
Benign
0.061
T;T;.;D
Sift4G
Benign
0.56
T;T;D;T
Polyphen
0.95
P;P;P;.
Vest4
0.81
MVP
0.76
MPC
0.28
ClinPred
0.20
T
GERP RS
4.2
Varity_R
0.038
gMVP
0.66

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: rs199859397; hg19: chr18-76856577; COSMIC: COSV100303706; COSMIC: COSV100303706; API