Stats by Source
Total, split by cell line (COSMIC CL / DepMap / PubMed) vs tissue (COSMIC primary tissue)
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.
| Total | Cell line | Tissue | |
|---|---|---|---|
| Mutations | 2,539 | 257 | 2,260 |
| Samples | 622 | 107 | 509 |
| Peptides | 528 | 91 | 449 |
Function
AP3B2 · Adaptor related protein complex 3 subunit beta 2
Adaptor protein complex 3 (AP-3 complex) is a heterotrimeric protein complex involved in the formation of clathrin-coated synaptic vesicles. The protein encoded by this gene represents the beta subunit of the neuron-specific AP-3 complex and was first identified as the target antigen in human paraneoplastic neurologic disorders. The encoded subunit binds clathrin and is phosphorylated by a casein kinase-like protein, which mediates synaptic vesicle coat assembly. Defects in this gene are a cause of early-onset epileptic encephalopathy. [provided by RefSeq, Feb 2017].
Isoforms & Proteins
6 transcripts · UniProt mapping is sequence-verified (AA-safe)
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.
| Transcript | UniProt | Mutations | Peptides |
|---|---|---|---|
| ENST00000535359 | Q13367-4 | 679 | 475 |
| ENST00000642989 | A0A2R8Y2A8* | 576 | 414 |
| ENST00000535348 | Q13367-3 | 560 | 399 |
| ENST00000261722 | A0A5F9UJV3* | 444 | 322 |
| ENST00000668990 | Q13367 | 231 | 163 |
| ENST00000542200 | F5GYB0* | 49 | 40 |
Gene Properties
Recurrent Mutations
All 475 amino-acid changes on canonical ENST00000535359 · needle height = samples · drag the mini-map to zoom
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 AP3B2 · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in AP3B2 – 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 type | Cell lines | Tissue samples |
|---|---|---|
| T-Lymphoblastic Leukemia | 2/40 5% | 0/0 0% |
| Endometrial Carcinoma | 6/42 14% | 21/612 3% |
| Chronic Myelogenous Leukemia | 1/25 4% | 0/0 0% |
| Melanoma | 12/210 6% | 72/1899 4% |
| T-Cell Non-Hodgkins Lymphoma | 1/26 4% | 0/0 0% |
| Oral Cavity Carcinoma | 2/54 4% | 0/0 0% |
| Hodgkins Lymphoma | 3/16 19% | 2/122 2% |
| Gastric Carcinoma | 4/74 5% | 54/1809 3% |
| Unknown | 1/10 10% | 0/29 0% |
| Colorectal Carcinoma | 12/143 8% | 70/3239 2% |
| Non-Small Cell Lung Carcinoma | 14/304 5% | 25/1390 2% |
| Squamous Cell Lung Carcinoma | 3/57 5% | 16/810 2% |
| Glioblastoma | 2/98 2% | 0/0 0% |
| Other Solid Cancers | 1/94 1% | 29/1515 2% |
| Hepatocellular Carcinoma | 3/46 7% | 36/2210 2% |
| Bladder Carcinoma | 2/58 3% | 15/956 2% |
| Plasma Cell Myeloma | 1/44 2% | 4/305 1% |
| Esophageal Squamous Cell Carcinoma | 0/51 0% | 33/2550 1% |
| Neuroendocrine Tumour | 8/154 5% | 1/577 0% |
| Ovarian Carcinoma | 3/109 3% | 10/998 1% |
| Biliary Tract Carcinoma | 3/54 6% | 8/950 1% |
| Other Sarcomas | 2/69 3% | 6/699 1% |
| Head and Neck Carcinoma | 1/85 1% | 16/1574 1% |
| Ewings Sarcoma | 3/63 5% | 0/262 0% |
| Small Cell Lung Carcinoma | 0/9 0% | 7/752 1% |
| Mesothelioma | 2/62 3% | 0/165 0% |
| Cervical Carcinoma | 2/35 6% | 2/422 0% |
| Pancreatic Carcinoma | 0/89 0% | 13/1611 1% |
| Esophageal Carcinoma | 0/23 0% | 6/769 1% |
| Thyroid Gland Carcinoma | 0/45 0% | 11/1592 1% |
Mutation Distribution
Where AP3B2 is mutated · all tissues, split by cell line vs tissue
How many mutations in AP3B2 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
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 2,539 mutations in AP3B2
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.
| ID | Sample | Transcript | AA Change | CDS | Type | Source | Mutant Peptide | Wild-type Peptide |
|---|