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 | 2,390 | 290 | 2,075 |
| Samples | 328 | 73 | 251 |
| Peptides | 228 | 44 | 195 |
Function
SNRPN · Small nuclear ribonucleoprotein polypeptide N
This gene is located within the Prader-Willi Syndrome critical region on chromosome 15 and is imprinted and expressed from the paternal allele. It encodes a component of the small nuclear ribonucleoprotein complex, which functions in pre-mRNA processing and may contribute to tissue-specific alternative splicing. Alternative promoter use and alternative splicing result in a multitude of transcript variants encoding the same protein. Transcript variants that initiate at the CpG island-associated imprinting center may be bicistronic and also encode the SNRPN upstream reading frame protein (SNURF) from an upstream open reading frame. In addition, long spliced transcripts for small nucleolar RNA host gene 14 (SNHG14) may originate from the promoters at this locus and share exons with this gene. Alterations in this region are associated with parental imprint switch failure, which may cause Angelman syndrome or Prader-Willi syndrome. [provided by RefSeq, Mar 2017].
Isoforms & Proteins
8 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 220 amino-acid changes on canonical ENST00000390687 · 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 SNRPN · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in SNRPN – 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 | 3/40 8% | 0/0 0% |
| Non-Small Cell Lung Carcinoma | 22/304 7% | 22/1390 2% |
| Melanoma | 5/210 2% | 39/1899 2% |
| Endometrial Carcinoma | 2/42 5% | 11/612 2% |
| Squamous Cell Lung Carcinoma | 6/57 11% | 9/810 1% |
| Other Solid Cancers | 1/94 1% | 24/1515 2% |
| Gastric Carcinoma | 0/74 0% | 24/1809 1% |
| Colorectal Carcinoma | 11/143 8% | 31/3239 1% |
| Plasma Cell Myeloma | 2/44 5% | 2/305 1% |
| Non-Cancerous | 2/104 2% | 6/830 1% |
| Small Cell Lung Carcinoma | 0/9 0% | 6/752 1% |
| Esophageal Carcinoma | 0/23 0% | 6/769 1% |
| Biliary Tract Carcinoma | 1/54 2% | 6/950 1% |
| Bladder Carcinoma | 2/58 3% | 4/956 0% |
| Hepatocellular Carcinoma | 0/46 0% | 12/2210 1% |
| Other Sarcomas | 0/69 0% | 4/699 1% |
| Head and Neck Carcinoma | 3/85 4% | 5/1574 0% |
| Medulloblastoma | 0/0 0% | 2/450 0% |
| Neuroendocrine Tumour | 0/154 0% | 3/577 1% |
| Thyroid Gland Carcinoma | 0/45 0% | 5/1592 0% |
| Esophageal Squamous Cell Carcinoma | 4/51 8% | 4/2550 0% |
| Glioma | 2/52 4% | 4/2127 0% |
| Ovarian Carcinoma | 0/109 0% | 3/998 0% |
| Breast Carcinoma | 0/144 0% | 9/3264 0% |
| Kidney Carcinoma | 2/85 2% | 3/1862 0% |
| Pancreatic Carcinoma | 2/89 2% | 2/1611 0% |
| Cervical Carcinoma | 0/35 0% | 1/422 0% |
| Neuroblastoma | 3/87 3% | 0/1331 0% |
| B-Lymphoblastic Leukemia | 0/55 0% | 3/2640 0% |
| B-Cell Non-Hodgkins Lymphoma | 0/88 0% | 3/2534 0% |
Mutation Distribution
Where SNRPN is mutated · all tissues, split by cell line vs tissue
How many mutations in SNRPN 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 2,390 mutations in SNRPN
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 |
|---|