ATP6AP1

ATPase H+ transporting accessory protein 1 Q15904 VAS1_HUMAN
Protein Coding Chr X Xq28 Swiss-Prot reviewed Entrez 537
Mutations
244
CL 39 · Tissue 198
Samples
215
CL 39 · Tissue 172
Peptides
180
unique mutant peptides
Transcripts
3
isoforms mutated

Stats by Source

Total, split by cell line (COSMIC CL / DepMap / PubMed) vs tissue (COSMIC primary tissue)

How the counts split by source
Stats by Source

Total = all mutations for this gene across every source.

Cell line = COSMIC Cell Lines Project + DepMap + PubMed.

Tissue = COSMIC primary-tissue (patient tumour) samples.

Total can exceed cell line + tissue: COSMIC tissue-derived models sit only in global, and a peptide can be shared across both.

TotalCell lineTissue
Mutations24439198
Samples21539172
Peptides18026155

Function

ATP6AP1 · ATPase H+ transporting accessory protein 1

This gene encodes a component of a multisubunit enzyme that mediates acidification of eukaryotic intracellular organelles. Vacuolar ATPase (V-ATPase) is comprised of a cytosolic V1 (site of the ATP catalytic site) and a transmembrane V0 domain. V-ATPase dependent organelle acidification is necessary for such intracellular processes as protein sorting, zymogen activation, and receptor-mediated endocytosis. The encoded protein of this gene may assist in the V-ATPase-mediated acidification of neuroendocrine secretory granules. This protein may also play a role in early development. [provided by RefSeq, Aug 2013].

Isoforms & Proteins

3 transcripts · UniProt mapping is sequence-verified (AA-safe)

About the isoform mapping
Isoforms & Proteins

Each Ensembl transcript (ENST) this gene is mutated on, with its matched UniProt accession.

The mapping is sequence-verified: the UniProt sequence is identical to the transcript translation, so amino-acid positions line up exactly. A * marks an unreviewed (TrEMBL) entry.

Counts are mutations and unique mutant peptides on each transcript.

TranscriptUniProtMutationsPeptides
ENST00000369762 Q15904 234 174
ENST00000619046 A0A0C4DGX8* 9 7
ENST00000677342 A0A7I2YQA5* 1 1

Gene Properties

Type
Protein Coding
Chromosome
X
Cytoband
Xq28
Entrez ID
Aliases
16AATP6IP1ATP6S1Ac45CF2VATPS1

Recurrent Mutations

All 174 amino-acid changes on canonical ENST00000369762 · needle height = samples · drag the mini-map to zoom

What this lollipop shows
Recurrent Mutations

A lollipop / needle plot – the standard way to show recurrent mutations along a protein (as used by cBioPortal and MutationMapper).

X-axis = amino-acid position in the protein.

Needle height & head size = how often that exact amino-acid change was observed (its recurrence). Tall/large heads are mutational hotspots.

The most recurrent changes are labelled; hover any needle for the change, position and counts.

Mutation frequency across cancer types

% of samples with a missense/complex mutation in ATP6AP1 · cell line vs tissue

How this frequency is counted
Cancer-type mutation frequency

For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in ATP6AP1 – counted as distinct samples (a sample counts once no matter how many mutations it has).

Split into cell line and tissue; each cell shows mutated / total and the percentage. Cohorts with <20 samples are omitted. Ordered by combined frequency.

Cancer typeCell linesTissue samples
T-Lymphoblastic Leukemia
3/40 8%
0/0 0%
T-Cell Non-Hodgkins Lymphoma
1/26 4%
0/0 0%
Endometrial Carcinoma
0/42 0%
17/612 3%
Glioblastoma
1/98 1%
0/0 0%
Melanoma
3/210 1%
18/1899 1%
Colorectal Carcinoma
10/143 7%
20/3239 1%
Adrenocortical Carcinoma
0/3 0%
1/112 1%
Bladder Carcinoma
2/58 3%
6/956 1%
Cervical Carcinoma
0/35 0%
3/422 1%
Non-Cancerous
1/104 1%
5/830 1%
Non-Small Cell Lung Carcinoma
0/304 0%
10/1390 1%
Gastric Carcinoma
2/74 3%
9/1809 0%
Neuroendocrine Tumour
2/154 1%
2/577 0%
Ovarian Carcinoma
1/109 1%
5/998 0%
Other Sarcomas
0/69 0%
4/699 1%
Other Solid Cancers
2/94 2%
6/1515 0%
Rhabdomyosarcoma
0/33 0%
1/171 1%
Mesothelioma
1/62 2%
0/165 0%
Burkitts Lymphoma
0/32 0%
1/196 1%
Medulloblastoma
0/0 0%
2/450 0%
Thyroid Gland Carcinoma
0/45 0%
7/1592 0%
Biliary Tract Carcinoma
1/54 2%
3/950 0%
Small Cell Lung Carcinoma
0/9 0%
3/752 0%
B-Cell Non-Hodgkins Lymphoma
3/88 3%
7/2534 0%
Glioma
0/52 0%
8/2127 0%
Squamous Cell Lung Carcinoma
0/57 0%
3/810 0%
Hepatocellular Carcinoma
0/46 0%
8/2210 0%
Ewings Sarcoma
0/63 0%
1/262 0%
Other Blood Cancers
1/61 2%
7/2725 0%
Plasma Cell Myeloma
1/44 2%
0/305 0%

Mutation Distribution

Where ATP6AP1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in ATP6AP1 were found in each tissue, across the whole database.

Each bar is a tissue (cell-line and tissue names are merged to the standard tissue), split into cell line and tissue (patient tumour) contributions.

This shows the cancer-context where this gene is recurrently altered.

GTEx Expression

Median TPM across 54 healthy tissues

GTEx Portal ↗
About the expression data
GTEx Expression

Median gene expression (TPM) in normal, non-cancer human tissues from the GTEx project.

Useful for judging tumour specificity – a strong neoantigen target ideally comes from a gene with low expression in healthy tissues.

Scroll or drag the mini-axis below the chart to browse all tissues.

Mutations

All 244 mutations in ATP6AP1

About the mutation list
Mutations

Every mutation record for this gene, across all samples and sources.

The Sample column links to the cell line (cell-line samples) or the tissue type (tissue samples).

Use the Type / Source filters, the search box, and column sorting to explore; each CAN-IMMUNE ID opens the full mutation & peptide view.

IDSampleTranscriptAA Change CDSTypeSourceMutant PeptideWild-type Peptide