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 | 247 | 54 | 192 |
| Samples | 133 | 37 | 95 |
| Peptides | 87 | 22 | 69 |
Function
CLDN12 · Claudin 12
This gene encodes a member of the claudin family. Claudins are integral membrane proteins and components of tight junction strands. Tight junction strands serve as a physical barrier to prevent solutes and water from passing freely through the paracellular space between epithelial or endothelial cell sheets, and also play critical roles in maintaining cell polarity and signal transductions. This gene is expressed in the inner ear and bladder epithelium, and it is over-expressed in colorectal carcinomas. This protein and claudin 2 are critical for vitamin D-dependent Ca2+ absorption between enterocytes. Multiple alternatively spliced transcript variants encoding the same protein have been found.[provided by RefSeq, Sep 2011].
Isoforms & Proteins
3 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 80 amino-acid changes on canonical ENST00000394605 · 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 CLDN12 · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in CLDN12 – 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 | 1/40 2% | 0/0 0% |
| Endometrial Carcinoma | 3/42 7% | 7/612 1% |
| Adrenocortical Carcinoma | 0/3 0% | 1/112 1% |
| Squamous Cell Lung Carcinoma | 0/57 0% | 7/810 1% |
| Non-Small Cell Lung Carcinoma | 6/304 2% | 4/1390 0% |
| Gastric Carcinoma | 2/74 3% | 9/1809 0% |
| Colorectal Carcinoma | 6/143 4% | 13/3239 0% |
| Germ Cell Tumour | 0/25 0% | 1/169 1% |
| Non-Cancerous | 0/104 0% | 4/830 0% |
| Neuroendocrine Tumour | 2/154 1% | 1/577 0% |
| Glioma | 0/52 0% | 9/2127 0% |
| Breast Carcinoma | 9/144 6% | 5/3264 0% |
| Other Sarcomas | 0/69 0% | 3/699 0% |
| Melanoma | 2/210 1% | 6/1899 0% |
| Biliary Tract Carcinoma | 0/54 0% | 3/950 0% |
| Plasma Cell Myeloma | 1/44 2% | 0/305 0% |
| Hepatocellular Carcinoma | 0/46 0% | 6/2210 0% |
| Head and Neck Carcinoma | 1/85 1% | 3/1574 0% |
| Bladder Carcinoma | 0/58 0% | 2/956 0% |
| Esophageal Squamous Cell Carcinoma | 0/51 0% | 5/2550 0% |
| Small Cell Lung Carcinoma | 0/9 0% | 1/752 0% |
| Other Solid Cancers | 0/94 0% | 2/1515 0% |
| B-Lymphoblastic Leukemia | 3/55 5% | 0/2640 0% |
| Kidney Carcinoma | 0/85 0% | 2/1862 0% |
| Ovarian Carcinoma | 0/109 0% | 1/998 0% |
| Prostate Carcinoma | 0/13 0% | 1/2105 0% |
| Other Blood Cancers | 1/61 2% | 0/2725 0% |
Mutation Distribution
Where CLDN12 is mutated · all tissues, split by cell line vs tissue
How many mutations in CLDN12 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 247 mutations in CLDN12
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 |
|---|