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 | 967 | 150 | 804 |
| Samples | 347 | 88 | 254 |
| Peptides | 263 | 38 | 234 |
Function
CLK2 · CDC like kinase 2
This gene encodes a dual specificity protein kinase that phosphorylates serine/threonine and tyrosine-containing substrates. Activity of this protein regulates serine- and arginine-rich (SR) proteins of the spliceosomal complex, thereby influencing alternative transcript splicing. Chromosomal translocations have been characterized between this locus and the PAFAH1B3 (platelet-activating factor acetylhydrolase 1b, catalytic subunit 3 (29kDa)) gene on chromosome 19, resulting in the production of a fusion protein. Note that this gene is distinct from the TELO2 gene (GeneID:9894), which shares the CLK2 alias, but encodes a protein that is involved in telomere length regulation. There is a pseudogene for this gene on chromosome 7. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2014].
Isoforms & Proteins
4 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 239 amino-acid changes on canonical ENST00000368361 · 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 CLK2 · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in CLK2 – 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 | 6/40 15% | 0/0 0% |
| Endometrial Carcinoma | 0/42 0% | 15/612 2% |
| Non-Small Cell Lung Carcinoma | 19/304 6% | 17/1390 1% |
| Glioblastoma | 2/98 2% | 0/0 0% |
| Melanoma | 12/210 6% | 27/1899 1% |
| Bladder Carcinoma | 3/58 5% | 15/956 2% |
| Colorectal Carcinoma | 12/143 8% | 44/3239 1% |
| Cervical Carcinoma | 0/35 0% | 7/422 2% |
| Hodgkins Lymphoma | 0/16 0% | 2/122 2% |
| Gastric Carcinoma | 6/74 8% | 19/1809 1% |
| Germ Cell Tumour | 0/25 0% | 2/169 1% |
| Rhabdomyosarcoma | 2/33 6% | 0/171 0% |
| Burkitts Lymphoma | 2/32 6% | 0/196 0% |
| Mesothelioma | 1/62 2% | 1/165 1% |
| Neuroendocrine Tumour | 4/154 3% | 2/577 0% |
| Hepatocellular Carcinoma | 0/46 0% | 18/2210 1% |
| Small Cell Lung Carcinoma | 0/9 0% | 6/752 1% |
| Head and Neck Carcinoma | 0/85 0% | 12/1574 1% |
| Ovarian Carcinoma | 3/109 3% | 5/998 0% |
| Other Solid Cancers | 3/94 3% | 8/1515 1% |
| Squamous Cell Lung Carcinoma | 2/57 4% | 3/810 0% |
| Breast Carcinoma | 2/144 1% | 12/3264 0% |
| Other Sarcomas | 1/69 1% | 2/699 0% |
| Esophageal Squamous Cell Carcinoma | 1/51 2% | 9/2550 0% |
| Non-Cancerous | 1/104 1% | 2/830 0% |
| Ewings Sarcoma | 0/63 0% | 1/262 0% |
| Glioma | 0/52 0% | 6/2127 0% |
| Pancreatic Carcinoma | 1/89 1% | 3/1611 0% |
| Thyroid Gland Carcinoma | 1/45 2% | 3/1592 0% |
| Biliary Tract Carcinoma | 0/54 0% | 2/950 0% |
Mutation Distribution
Where CLK2 is mutated · all tissues, split by cell line vs tissue
How many mutations in CLK2 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 967 mutations in CLK2
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 |
|---|