rs147576439

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6BP7

The NM_001692.4(ATP6V1B1):c.264G>A(p.Ala88=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00129 in 1,614,018 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00078 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0013 ( 1 hom. )

Consequence

ATP6V1B1
NM_001692.4 synonymous

Scores

Clinical Significance

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

Conservation

PhyloP100: -2.62

Variant links:

Genes affected

ATP6V1B1 (HGNC:853): (ATPase H+ transporting V1 subunit B1) This gene encodes a component of vacuolar ATPase (V-ATPase), a multisubunit enzyme that mediates acidification of eukaryotic intracellular organelles. V-ATPase dependent organelle acidification is necessary for such intracellular processes as protein sorting, zymogen activation, receptor-mediated endocytosis, and synaptic vesicle proton gradient generation. V-ATPase is composed of a cytosolic V1 domain and a transmembrane V0 domain. The V1 domain consists of three A and three B subunits, two G subunits plus the C, D, E, F, and H subunits. The V1 domain contains the ATP catalytic site. The V0 domain consists of five different subunits: a, c, c', c'', and d. Additional isoforms of many of the V1 and V0 subunit proteins are encoded by multiple genes or alternatively spliced transcript variants. This encoded protein is one of two V1 domain B subunit isoforms and is found in the kidney. Mutations in this gene cause distal renal tubular acidosis associated with sensorineural deafness. [provided by RefSeq, Jul 2008]

ATP6V1B1 links:

VAX2 (HGNC:12661): (ventral anterior homeobox 2) This gene encodes a homeobox protein and is almost exclusively expressed in the ventral portion of the retina during development. In mouse studies, this gene was found to be required for the correct formation of the optic fissure and other aspects of retinal development. [provided by RefSeq, Sep 2008]

VAX2 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 (BayesDel_noAF=-0.43).

BP6

Variant 2-70958135-G-A is Benign according to our data. Variant chr2-70958135-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 44226.We mark this variant Likely_benign, oryginal submissions are: {Benign=1, Likely_benign=4, Uncertain_significance=1}. Variant chr2-70958135-G-A is described in Lovd as [Likely_benign].

BP7

Synonymous conserved (PhyloP=-2.62 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ATP6V1B1	NM_001692.4 linkuse as main transcript	c.264G>A	p.Ala88=	synonymous_variant	3/14	ENST00000234396.10
ATP6V1B1	XM_011532907.3 linkuse as main transcript	c.384G>A	p.Ala128=	synonymous_variant	2/13

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ATP6V1B1	ENST00000234396.10 linkuse as main transcript	c.264G>A	p.Ala88=	synonymous_variant	3/14	1	NM_001692.4	P1

Frequencies

GnomAD3 genomes

AF:

0.000782

AC:

119

AN:

152174

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000314

Gnomad AMI

AF:

0.00110

Gnomad AMR

AF:

0.000327

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.000471

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00134

Gnomad OTH

AF:

0.000955

GnomAD3 exomes

AF:

0.000972

AC:

243

AN:

250008

Hom.:

AF XY:

0.00108

AC XY:

146

AN XY:

135180

show subpopulations

Gnomad AFR exome

AF:

0.000186

Gnomad AMR exome

AF:

0.000319

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.000589

Gnomad FIN exome

AF:

0.00107

Gnomad NFE exome

AF:

0.00161

Gnomad OTH exome

AF:

0.000820

GnomAD4 exome

AF:

0.00134

AC:

1965

AN:

1461726

Hom.:

Cov.:

AF XY:

0.00131

AC XY:

952

AN XY:

727150

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000335

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.000615

Gnomad4 FIN exome

AF:

0.000806

Gnomad4 NFE exome

AF:

0.00161

Gnomad4 OTH exome

AF:

0.000944

GnomAD4 genome

AF:

0.000781

AC:

119

AN:

152292

Hom.:

Cov.:

AF XY:

0.000564

AC XY:

AN XY:

74474

show subpopulations

Gnomad4 AFR

AF:

0.000313

Gnomad4 AMR

AF:

0.000327

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000415

Gnomad4 FIN

AF:

0.000471

Gnomad4 NFE

AF:

0.00134

Gnomad4 OTH

AF:

0.000945

Alfa

AF:

0.000914

Hom.:

Bravo

AF:

0.000793

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00115

EpiControl

AF:

0.00130

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:6

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Benign:3

Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Jul 24, 2020	- -
Benign, criteria provided, single submitter	clinical testing	Invitae	Jan 30, 2024	- -
Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Apr 01, 2023	ATP6V1B1: BP4, BP7 -

Renal tubular acidosis with progressive nerve deafness

Uncertain:1Benign:1

Likely benign, no assertion criteria provided	clinical testing	Natera, Inc.	Dec 17, 2019	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 13, 2018	This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Sep 03, 2015

p.Ala88Ala in exon 3 of ATP6V1B1: This variant is not expected to have clinical significance because it does not alter an amino acid residue, is not located wit hin the splice consensus sequence, and has been identified in 0.2% (123/64670) E uropean chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broad institute.org; dbSNP rs147576439). -

ATP6V1B1-related disorder

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Dec 23, 2021

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.43

Cadd

Benign

6.5

Dann

Benign

0.84

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