chr2-70935981-TG-C
Variant summary
Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong
The NM_001692.4(ATP6V1B1):c.27_28delinsC(p.Leu12SerfsTer8) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. P9P) has been classified as Benign.
Frequency
Genomes: not found (cov: 32)
Consequence
ATP6V1B1
NM_001692.4 frameshift
NM_001692.4 frameshift
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: -0.105
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]
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]
Genome browser will be placed here
ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 18 ACMG points.
PVS1
?
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. There are 79 pathogenic variants in the truncated region.
PM2
?
Very rare variant in population databases, with high coverage;
PP5
?
Variant 2-70935981-TG-C is Pathogenic according to our data. Variant chr2-70935981-TG-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 966396.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
ATP6V1B1 | NM_001692.4 | c.27_28delinsC | p.Leu12SerfsTer8 | frameshift_variant | 1/14 | ENST00000234396.10 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
ATP6V1B1 | ENST00000234396.10 | c.27_28delinsC | p.Leu12SerfsTer8 | frameshift_variant | 1/14 | 1 | NM_001692.4 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
We have no GnomAD4 exomes data on this position. Probably position not covered by the project.
GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
ClinVar
Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Renal tubular acidosis with progressive nerve deafness Pathogenic:2
Likely pathogenic, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Dec 22, 2021 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Revvity Omics, Revvity | Aug 21, 2020 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at