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 | 242 | 36 | 204 |
| Samples | 70 | 14 | 54 |
| Peptides | 68 | 14 | 57 |
Function
SNAP23 · Synaptosome associated protein 23
Specificity of vesicular transport is regulated, in part, by the interaction of a vesicle-associated membrane protein termed synaptobrevin/VAMP with a target compartment membrane protein termed syntaxin. These proteins, together with SNAP25 (synaptosome-associated protein of 25 kDa), form a complex which serves as a binding site for the general membrane fusion machinery. Synaptobrevin/VAMP and syntaxin are believed to be involved in vesicular transport in most, if not all cells, while SNAP25 is present almost exclusively in the brain, suggesting that a ubiquitously expressed homolog of SNAP25 exists to facilitate transport vesicle/target membrane fusion in other tissues. The protein encoded by this gene is structurally and functionally similar to SNAP25 and binds tightly to multiple syntaxins and synaptobrevins/VAMPs. It is an essential component of the high affinity receptor for the general membrane fusion machinery and is an important regulator of transport vesicle docking and fusion. Two alternative transcript variants encoding different protein isoforms have been described for this gene. [provided by RefSeq, Jul 2008].
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 47 amino-acid changes on canonical ENST00000249647 · 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 SNAP23 · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in SNAP23 – 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 |
|---|---|---|
| Endometrial Carcinoma | 0/42 0% | 6/612 1% |
| Ewings Sarcoma | 1/63 2% | 1/262 0% |
| Germ Cell Tumour | 0/25 0% | 1/169 1% |
| Gastric Carcinoma | 1/74 1% | 7/1809 0% |
| Bladder Carcinoma | 0/58 0% | 4/956 0% |
| Colorectal Carcinoma | 6/143 4% | 5/3239 0% |
| Other Solid Cancers | 0/94 0% | 4/1515 0% |
| Breast Carcinoma | 2/144 1% | 6/3264 0% |
| Squamous Cell Lung Carcinoma | 0/57 0% | 2/810 0% |
| Cervical Carcinoma | 0/35 0% | 1/422 0% |
| Kidney Carcinoma | 1/85 1% | 3/1862 0% |
| Esophageal Squamous Cell Carcinoma | 0/51 0% | 5/2550 0% |
| Melanoma | 0/210 0% | 4/1899 0% |
| Esophageal Carcinoma | 0/23 0% | 1/769 0% |
| Head and Neck Carcinoma | 0/85 0% | 2/1574 0% |
| Non-Small Cell Lung Carcinoma | 0/304 0% | 2/1390 0% |
| Ovarian Carcinoma | 0/109 0% | 1/998 0% |
| Prostate Carcinoma | 1/13 8% | 0/2105 0% |
| Glioma | 0/52 0% | 1/2127 0% |
| B-Cell Non-Hodgkins Lymphoma | 1/88 1% | 0/2534 0% |
| B-Lymphoblastic Leukemia | 1/55 2% | 0/2640 0% |
Mutation Distribution
Where SNAP23 is mutated · all tissues, split by cell line vs tissue
How many mutations in SNAP23 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 242 mutations in SNAP23
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 |
|---|