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 | 113 | 24 | 88 |
| Samples | 51 | 13 | 37 |
| Peptides | 39 | 7 | 32 |
Function
S100B · S100 calcium binding protein B
The protein encoded by this gene is a member of the S100 family of proteins containing 2 EF-hand calcium-binding motifs. S100 proteins are localized in the cytoplasm and/or nucleus of a wide range of cells, and involved in the regulation of a number of cellular processes such as cell cycle progression and differentiation. S100 genes include at least 13 members which are located as a cluster on chromosome 1q21; however, this gene is located at 21q22.3. This protein may function in Neurite extension, proliferation of melanoma cells, stimulation of Ca2+ fluxes, inhibition of PKC-mediated phosphorylation, astrocytosis and axonal proliferation, and inhibition of microtubule assembly. Chromosomal rearrangements and altered expression of this gene have been implicated in several neurological, neoplastic, and other types of diseases, including Alzheimer's disease, Down's syndrome, epilepsy, amyotrophic lateral sclerosis, melanoma, and type I diabetes. [provided by RefSeq, Jul 2008].
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 29 amino-acid changes on canonical ENST00000291700 · 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 S100B · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in S100B – 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 | 2/40 5% | 0/0 0% |
| Meningioma | 0/3 0% | 2/252 1% |
| Endometrial Carcinoma | 0/42 0% | 5/612 1% |
| Ewings Sarcoma | 2/63 3% | 0/262 0% |
| Neuroendocrine Tumour | 2/154 1% | 1/577 0% |
| Non-Small Cell Lung Carcinoma | 5/304 2% | 2/1390 0% |
| Colorectal Carcinoma | 0/143 0% | 8/3239 0% |
| Esophageal Squamous Cell Carcinoma | 0/51 0% | 6/2550 0% |
| Cervical Carcinoma | 0/35 0% | 1/422 0% |
| Other Solid Cancers | 0/94 0% | 3/1515 0% |
| Squamous Cell Lung Carcinoma | 0/57 0% | 1/810 0% |
| Biliary Tract Carcinoma | 0/54 0% | 1/950 0% |
| Melanoma | 0/210 0% | 2/1899 0% |
| Ovarian Carcinoma | 0/109 0% | 1/998 0% |
| B-Lymphoblastic Leukemia | 2/55 4% | 0/2640 0% |
| Head and Neck Carcinoma | 0/85 0% | 1/1574 0% |
| Breast Carcinoma | 0/144 0% | 2/3264 0% |
| Glioma | 0/52 0% | 1/2127 0% |
| Gastric Carcinoma | 0/74 0% | 1/1809 0% |
Mutation Distribution
Where S100B is mutated · all tissues, split by cell line vs tissue
How many mutations in S100B 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 113 mutations in S100B
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 |
|---|