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 | 2,342 | 281 | 2,037 |
| Samples | 518 | 97 | 411 |
| Peptides | 390 | 74 | 324 |
Function
PIK3R5 · Phosphoinositide-3-kinase regulatory subunit 5
Phosphatidylinositol 3-kinases (PI3Ks) phosphorylate the inositol ring of phosphatidylinositol at the 3-prime position, and play important roles in cell growth, proliferation, differentiation, motility, survival and intracellular trafficking. The PI3Ks are divided into three classes: I, II and III, and only the class I PI3Ks are involved in oncogenesis. This gene encodes the 101 kD regulatory subunit of the class I PI3K gamma complex, which is a dimeric enzyme, consisting of a 110 kD catalytic subunit gamma and a regulatory subunit of either 55, 87 or 101 kD. This protein recruits the catalytic subunit from the cytosol to the plasma membrane through high-affinity interaction with G-beta-gamma proteins. Multiple alternatively spliced transcript variants encoding two distinct isoforms have been found. [provided by RefSeq, Oct 2011].
Isoforms & Proteins
7 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.
Gene Properties
Recurrent Mutations
All 372 amino-acid changes on canonical ENST00000447110 · 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 PIK3R5 · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in PIK3R5 – 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 |
|---|---|---|
| Chronic Myelogenous Leukemia | 2/25 8% | 0/0 0% |
| T-Lymphoblastic Leukemia | 2/40 5% | 0/0 0% |
| Melanoma | 10/210 5% | 77/1899 4% |
| T-Cell Non-Hodgkins Lymphoma | 1/26 4% | 0/0 0% |
| Endometrial Carcinoma | 4/42 10% | 20/612 3% |
| Thymic Epithelial Tumor | 0/0 0% | 1/39 3% |
| Neuroendocrine Tumour | 11/154 7% | 4/577 1% |
| Glioblastoma | 2/98 2% | 0/0 0% |
| Non-Small Cell Lung Carcinoma | 10/304 3% | 24/1390 2% |
| Other Solid Cancers | 0/94 0% | 28/1515 2% |
| Colorectal Carcinoma | 16/143 11% | 42/3239 1% |
| Gastric Carcinoma | 1/74 1% | 31/1809 2% |
| Ovarian Carcinoma | 3/109 3% | 10/998 1% |
| Thyroid Gland Carcinoma | 0/45 0% | 19/1592 1% |
| Squamous Cell Lung Carcinoma | 0/57 0% | 10/810 1% |
| Head and Neck Carcinoma | 2/85 2% | 15/1574 1% |
| Glioma | 0/52 0% | 21/2127 1% |
| Osteosarcoma | 2/45 4% | 0/166 0% |
| Mesothelioma | 2/62 3% | 0/165 0% |
| Cervical Carcinoma | 1/35 3% | 3/422 1% |
| Kidney Carcinoma | 2/85 2% | 14/1862 1% |
| Small Cell Lung Carcinoma | 0/9 0% | 6/752 1% |
| Neuroblastoma | 4/87 5% | 7/1331 1% |
| Other Sarcomas | 0/69 0% | 6/699 1% |
| Pancreatic Carcinoma | 2/89 2% | 11/1611 1% |
| Non-Cancerous | 1/104 1% | 6/830 1% |
| Hodgkins Lymphoma | 0/16 0% | 1/122 1% |
| Biliary Tract Carcinoma | 0/54 0% | 7/950 1% |
| Hepatocellular Carcinoma | 0/46 0% | 14/2210 1% |
| Bladder Carcinoma | 2/58 3% | 4/956 0% |
Mutation Distribution
Where PIK3R5 is mutated · all tissues, split by cell line vs tissue
How many mutations in PIK3R5 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 2,342 mutations in PIK3R5
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 |
|---|