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 | 2,559 | 192 | 2,352 |
| Samples | 578 | 77 | 492 |
| Peptides | 467 | 65 | 414 |
Function
CTBP2 · C-terminal binding protein 2
This gene produces alternative transcripts encoding two distinct proteins. One protein is a transcriptional repressor, while the other isoform is a major component of specialized synapses known as synaptic ribbons. Both proteins contain a NAD+ binding domain similar to NAD+-dependent 2-hydroxyacid dehydrogenases. A portion of the 3' untranslated region was used to map this gene to chromosome 21q21.3; however, it was noted that similar loci elsewhere in the genome are likely. Blast analysis shows that this gene is present on chromosome 10. Several transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Feb 2014].
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.
Gene Properties
Recurrent Mutations
All 408 amino-acid changes on canonical ENST00000309035 · 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 CTBP2 · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in CTBP2 – 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 | 4/40 10% | 0/0 0% |
| Acute Monocytic Leukemia | 0/1 0% | 2/25 8% |
| Endometrial Carcinoma | 6/42 14% | 21/612 3% |
| Chronic Myelogenous Leukemia | 1/25 4% | 0/0 0% |
| Gastrointestinal Stromal Tumour | 0/0 0% | 5/133 4% |
| Colorectal Carcinoma | 22/143 15% | 85/3239 3% |
| Melanoma | 0/210 0% | 50/1899 3% |
| Squamous Cell Lung Carcinoma | 0/57 0% | 18/810 2% |
| Bladder Carcinoma | 1/58 2% | 20/956 2% |
| Rhabdomyosarcoma | 0/33 0% | 4/171 2% |
| Oral Cavity Carcinoma | 1/54 2% | 0/0 0% |
| Gastric Carcinoma | 0/74 0% | 33/1809 2% |
| Hepatocellular Carcinoma | 0/46 0% | 35/2210 2% |
| Other Solid Cancers | 3/94 3% | 22/1515 1% |
| Thyroid Gland Carcinoma | 0/45 0% | 25/1592 2% |
| Cervical Carcinoma | 0/35 0% | 7/422 2% |
| Non-Small Cell Lung Carcinoma | 3/304 1% | 20/1390 1% |
| Mesothelioma | 1/62 2% | 2/165 1% |
| Other Sarcomas | 2/69 3% | 7/699 1% |
| Acute Myeloid Leukemia | 1/90 1% | 0/0 0% |
| Glioma | 0/52 0% | 24/2127 1% |
| Biliary Tract Carcinoma | 2/54 4% | 9/950 1% |
| Glioblastoma | 1/98 1% | 0/0 0% |
| Head and Neck Carcinoma | 0/85 0% | 16/1574 1% |
| Non-Cancerous | 1/104 1% | 8/830 1% |
| Osteosarcoma | 1/45 2% | 1/166 1% |
| Small Cell Lung Carcinoma | 0/9 0% | 7/752 1% |
| Ovarian Carcinoma | 4/109 4% | 6/998 1% |
| Hodgkins Lymphoma | 1/16 6% | 0/122 0% |
| Medulloblastoma | 0/0 0% | 3/450 1% |
Mutation Distribution
Where CTBP2 is mutated · all tissues, split by cell line vs tissue
How many mutations in CTBP2 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 2,559 mutations in CTBP2
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 |
|---|