13-113658068-G-A

Variant summary

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

The NM_000705.4(ATP4B):​c.77C>T​(p.Thr26Met) variant causes a missense change. The variant allele was found at a frequency of 0.0000379 in 1,610,180 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000040 ( 0 hom. )

Consequence

ATP4B
NM_000705.4 missense

Scores

2
9
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.63
Variant links:
Genes affected
ATP4B (HGNC:820): (ATPase H+/K+ transporting subunit beta) The protein encoded by this gene belongs to a family of P-type cation-transporting ATPases. The gastric H+, K+-ATPase is a heterodimer consisting of a high molecular weight catalytic alpha subunit and a smaller but heavily glycosylated beta subunit. This enzyme is a proton pump that catalyzes the hydrolysis of ATP coupled with the exchange of H(+) and K(+) ions across the plasma membrane. It is also responsible for gastric acid secretion. This gene encodes the beta subunit of the gastric H+, K+-ATPase. [provided by RefSeq, Jul 2008]

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
ATP4BNM_000705.4 linkuse as main transcriptc.77C>T p.Thr26Met missense_variant 1/7 ENST00000335288.5
GRK1XM_047430493.1 linkuse as main transcriptc.-7+9824G>A intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ATP4BENST00000335288.5 linkuse as main transcriptc.77C>T p.Thr26Met missense_variant 1/71 NM_000705.4 P1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152162
Hom.:
0
Cov.:
34
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:
0.0000330
AC:
8
AN:
242786
Hom.:
0
AF XY:
0.0000530
AC XY:
7
AN XY:
132166
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000334
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000640
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000398
AC:
58
AN:
1458018
Hom.:
0
Cov.:
31
AF XY:
0.0000483
AC XY:
35
AN XY:
725102
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000583
Gnomad4 FIN exome
AF:
0.0000386
Gnomad4 NFE exome
AF:
0.0000387
Gnomad4 OTH exome
AF:
0.0000996
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152162
Hom.:
0
Cov.:
34
AF XY:
0.0000269
AC XY:
2
AN XY:
74324
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:
0.0000508
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000412
AC:
5

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 GeneticsDec 03, 2021The c.77C>T (p.T26M) alteration is located in exon 1 (coding exon 1) of the ATP4B gene. This alteration results from a C to T substitution at nucleotide position 77, causing the threonine (T) at amino acid position 26 to be replaced by a methionine (M). 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
0.29
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.27
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Benign
0.38
T
Eigen
Pathogenic
0.74
Eigen_PC
Uncertain
0.64
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Benign
0.82
T
M_CAP
Benign
0.023
T
MetaRNN
Uncertain
0.51
D
MetaSVM
Benign
-0.38
T
MutationAssessor
Pathogenic
3.6
H
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.59
T
PROVEAN
Uncertain
-4.2
D
REVEL
Uncertain
0.29
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0040
D
Polyphen
1.0
D
Vest4
0.48
MVP
0.68
MPC
0.47
ClinPred
0.99
D
GERP RS
4.4
Varity_R
0.46
gMVP
0.52

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: rs753438684; hg19: chr13-114312383; API