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 | 721 | 112 | 609 |
| Samples | 240 | 49 | 191 |
| Peptides | 187 | 35 | 162 |
Function
KLK8 · Kallikrein related peptidase 8
Kallikreins are a subgroup of serine proteases having diverse physiological functions. Growing evidence suggests that many kallikreins are implicated in carcinogenesis and some have potential as novel cancer and other disease biomarkers. This gene is one of the fifteen kallikrein subfamily members located in tandem in a gene cluster on chromosome 19. The encoded protein may be involved in proteolytic cascade in the skin and may serve as a biomarker for ovarian cancer. Alternate splicing of this gene results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2013].
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 154 amino-acid changes on canonical ENST00000391806 · 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 KLK8 · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in KLK8 – 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 | 3/40 8% | 0/0 0% |
| Chronic Myelogenous Leukemia | 1/25 4% | 0/0 0% |
| Endometrial Carcinoma | 2/42 5% | 19/612 3% |
| Glioblastoma | 2/98 2% | 0/0 0% |
| Oral Cavity Carcinoma | 1/54 2% | 0/0 0% |
| Melanoma | 4/210 2% | 34/1899 2% |
| Non-Small Cell Lung Carcinoma | 9/304 3% | 18/1390 1% |
| Burkitts Lymphoma | 3/32 9% | 0/196 0% |
| Squamous Cell Lung Carcinoma | 0/57 0% | 9/810 1% |
| Other Sarcomas | 0/69 0% | 7/699 1% |
| Meningioma | 0/3 0% | 2/252 1% |
| Gastrointestinal Stromal Tumour | 0/0 0% | 1/133 1% |
| Colorectal Carcinoma | 7/143 5% | 17/3239 1% |
| Neuroendocrine Tumour | 4/154 3% | 1/577 0% |
| Cervical Carcinoma | 0/35 0% | 3/422 1% |
| Esophageal Carcinoma | 0/23 0% | 5/769 1% |
| Other Solid Cancers | 0/94 0% | 10/1515 1% |
| Plasma Cell Myeloma | 0/44 0% | 2/305 1% |
| Ovarian Carcinoma | 2/109 2% | 4/998 0% |
| Gastric Carcinoma | 3/74 4% | 7/1809 0% |
| Small Cell Lung Carcinoma | 0/9 0% | 3/752 0% |
| Neuroblastoma | 2/87 2% | 3/1331 0% |
| Thyroid Gland Carcinoma | 0/45 0% | 5/1592 0% |
| Bladder Carcinoma | 0/58 0% | 3/956 0% |
| Breast Carcinoma | 2/144 1% | 8/3264 0% |
| Prostate Carcinoma | 0/13 0% | 6/2105 0% |
| Pancreatic Carcinoma | 1/89 1% | 3/1611 0% |
| Glioma | 0/52 0% | 5/2127 0% |
| Non-Cancerous | 0/104 0% | 2/830 0% |
| Biliary Tract Carcinoma | 0/54 0% | 2/950 0% |
Mutation Distribution
Where KLK8 is mutated · all tissues, split by cell line vs tissue
How many mutations in KLK8 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 47 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 721 mutations in KLK8
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 |
|---|