AP2A1

Adaptor related protein complex 2 subunit alpha 1 O95782 AP2A1_HUMAN
Protein Coding Chr 19 19q13.33 Swiss-Prot reviewed Entrez 160
Mutations
899
CL 168 · Tissue 710
Samples
455
CL 110 · Tissue 336
Peptides
346
unique mutant peptides
Transcripts
2
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
Mutations899168710
Samples455110336
Peptides34675277

Function

AP2A1 · Adaptor related protein complex 2 subunit alpha 1

This gene encodes the alpha 1 adaptin subunit of the adaptor protein 2 (AP-2) complex found in clathrin coated vesicles. The AP-2 complex is a heterotetramer consisting of two large adaptins (alpha or beta), a medium adaptin (mu), and a small adaptin (sigma). The complex is part of the protein coat on the cytoplasmic face of coated vesicles which links clathrin to receptors in vesicles. Alternative splicing of this gene results in two transcript variants encoding two different isoforms. A third transcript variant has been described, but its full length nature has not been determined. [provided by RefSeq, Jul 2008].

Isoforms & Proteins

2 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
ENST00000354293 O95782-2 482 331
ENST00000359032 O95782 417 311

Gene Properties

Type
Protein Coding
Chromosome
19
Cytoband
19q13.33
Entrez ID
Aliases
ADTAAAP2-ALPHACLAPA1

Recurrent Mutations

All 331 amino-acid changes on canonical ENST00000354293 · 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 AP2A1 · 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 AP2A1 – 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
Chronic Myelogenous Leukemia
4/25 16%
0/0 0%
T-Lymphoblastic Leukemia
5/40 12%
0/0 0%
Endometrial Carcinoma
8/42 19%
21/612 3%
Other Solid Cancers
5/94 5%
38/1515 3%
Cervical Carcinoma
4/35 11%
8/422 2%
Unknown
1/10 10%
0/29 0%
Gastric Carcinoma
7/74 9%
40/1809 2%
Acute Myeloid Leukemia
2/90 2%
0/0 0%
Colorectal Carcinoma
16/143 11%
48/3239 1%
Oral Cavity Carcinoma
1/54 2%
0/0 0%
Melanoma
4/210 2%
33/1899 2%
Germ Cell Tumour
1/25 4%
2/169 1%
Neuroendocrine Tumour
9/154 6%
2/577 0%
Non-Small Cell Lung Carcinoma
12/304 4%
7/1390 0%
Non-Cancerous
1/104 1%
9/830 1%
Squamous Cell Lung Carcinoma
1/57 2%
8/810 1%
Head and Neck Carcinoma
8/85 9%
9/1574 1%
Thyroid Gland Carcinoma
1/45 2%
14/1592 1%
Small Cell Lung Carcinoma
0/9 0%
6/752 1%
Other Sarcomas
1/69 1%
5/699 1%
Bladder Carcinoma
0/58 0%
7/956 1%
Hepatocellular Carcinoma
0/46 0%
14/2210 1%
Esophageal Carcinoma
0/23 0%
4/769 1%
Breast Carcinoma
2/144 1%
14/3264 0%
Esophageal Squamous Cell Carcinoma
1/51 2%
11/2550 0%
Kidney Carcinoma
0/85 0%
9/1862 0%
Medulloblastoma
0/0 0%
2/450 0%
Glioma
0/52 0%
9/2127 0%
Biliary Tract Carcinoma
0/54 0%
4/950 0%
Prostate Carcinoma
0/13 0%
8/2105 0%

Mutation Distribution

Where AP2A1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in AP2A1 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 899 mutations in AP2A1

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