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 | 88 | 15 | 69 |
| Samples | 71 | 15 | 53 |
| Peptides | 57 | 11 | 45 |
Function
CDKN2B · Cyclin dependent kinase inhibitor 2B
This gene lies adjacent to the tumor suppressor gene CDKN2A in a region that is frequently mutated and deleted in a wide variety of tumors. This gene encodes a cyclin-dependent kinase inhibitor, which forms a complex with CDK4 or CDK6, and prevents the activation of the CDK kinases, thus the encoded protein functions as a cell growth regulator that controls cell cycle G1 progression. The expression of this gene was found to be dramatically induced by TGF beta, which suggested its role in the TGF beta induced growth inhibition. Two alternatively spliced transcript variants of this gene, which encode distinct proteins, have been reported. [provided by RefSeq, Jul 2008].
Isoforms & Proteins
2 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 49 amino-acid changes on canonical ENST00000276925 · 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 CDKN2B · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in CDKN2B – 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 | 1/25 4% | 0/0 0% |
| Unknown | 1/10 10% | 0/29 0% |
| Endometrial Carcinoma | 2/42 5% | 2/612 0% |
| Germ Cell Tumour | 0/25 0% | 1/169 1% |
| Bladder Carcinoma | 0/58 0% | 5/956 1% |
| Cervical Carcinoma | 0/35 0% | 2/422 0% |
| Neuroendocrine Tumour | 0/154 0% | 3/577 1% |
| Thyroid Gland Carcinoma | 0/45 0% | 6/1592 0% |
| Colorectal Carcinoma | 2/143 1% | 9/3239 0% |
| Small Cell Lung Carcinoma | 0/9 0% | 2/752 0% |
| Head and Neck Carcinoma | 0/85 0% | 4/1574 0% |
| Gastric Carcinoma | 0/74 0% | 4/1809 0% |
| Melanoma | 1/210 0% | 3/1899 0% |
| Non-Small Cell Lung Carcinoma | 2/304 1% | 1/1390 0% |
| Ovarian Carcinoma | 1/109 1% | 1/998 0% |
| Hepatocellular Carcinoma | 1/46 2% | 3/2210 0% |
| Glioma | 0/52 0% | 3/2127 0% |
| Squamous Cell Lung Carcinoma | 0/57 0% | 1/810 0% |
| Pancreatic Carcinoma | 0/89 0% | 2/1611 0% |
| Other Solid Cancers | 0/94 0% | 2/1515 0% |
| Non-Cancerous | 1/104 1% | 0/830 0% |
| Breast Carcinoma | 3/144 2% | 0/3264 0% |
| B-Cell Non-Hodgkins Lymphoma | 0/88 0% | 1/2534 0% |
| Esophageal Squamous Cell Carcinoma | 0/51 0% | 1/2550 0% |
Mutation Distribution
Where CDKN2B is mutated · all tissues, split by cell line vs tissue
How many mutations in CDKN2B 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 88 mutations in CDKN2B
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 |
|---|