2-70943630-C-A

Variant names:

• chr2-70943630-C-A
• rs189104175
• NM_001692.4:c.119-28C>A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001692.4(ATP6V1B1):​c.119-28C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000023 in 1,605,632 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000024 (0 hom.)
• Consequence: ATP6V1B1 NM_001692.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.169
• Publications: 0 publications found

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]

ENSG00000258881 (HGNC:):

ATP6V1B1-AS1 (HGNC:51118): (ATP6V1B1 antisense RNA 1)

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]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (REVEL=0.159).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001692.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ATP6V1B1	NM_001692.4	MANE Select	c.119-28C>A		intron	N/A	NP_001683.2
	ATP6V1B1-AS1	NR_110273.1		n.524-1197G>T		intron	N/A
	ATP6V1B1-AS1	NR_110274.1		n.386-1197G>T		intron	N/A

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ATP6V1B1	ENST00000234396.10	TSL:1 MANE Select	c.119-28C>A		intron	N/A	ENSP00000234396.4	P15313
	ENSG00000258881	ENST00000606025.5	TSL:5	c.476-1197G>T		intron	N/A	ENSP00000475641.1	U3KQ87
	ATP6V1B1	ENST00000872157.1		c.119-28C>A		intron	N/A	ENSP00000542216.1

Frequencies

GnomAD3 genomes AF: 0.0000132 AC: 2 AN: 152026 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000242

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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000362 AC: 9 AN: 248722 AF XY: 0.0000372

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 FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000800

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000241 AC: 35 AN: 1453606 Hom.: 0 Cov.: 30 AF XY: 0.0000235 AC XY: 17 AN XY: 723402

African (AFR) AF: 0.00 AC: 0 AN: 33388

American (AMR) AF: 0.00 AC: 0 AN: 44658

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26064

East Asian (EAS) AF: 0.00 AC: 0 AN: 39628

South Asian (SAS) AF: 0.00 AC: 0 AN: 85980

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52914

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5754

European-Non Finnish (NFE) AF: 0.0000308 AC: 34 AN: 1105108

Other (OTH) AF: 0.0000166 AC: 1 AN: 60112

GnomAD4 genome AF: 0.0000132 AC: 2 AN: 152026 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 74238

African (AFR) AF: 0.0000242 AC: 1 AN: 41376

American (AMR) AF: 0.00 AC: 0 AN: 15286

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5180

South Asian (SAS) AF: 0.00 AC: 0 AN: 4834

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10618

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 67940

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000378

EpiCase AF: 0.00

EpiControl AF: 0.0000594

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.39
CADD	Benign	9.1
DANN	Benign	0.85
PhyloP100		0.17

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

Other links and lift over

dbSNP: rs189104175; hg19: chr2-71170760;