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 | 2,759 | 255 | 2,490 |
| Samples | 224 | 35 | 188 |
| Peptides | 258 | 48 | 219 |
Function
ASAH1 · N-acylsphingosine amidohydrolase 1
This gene encodes a member of the acid ceramidase family of proteins. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed. Processing of this preproprotein generates alpha and beta subunits that heterodimerize to form the mature lysosomal enzyme, which catalyzes the degradation of ceramide into sphingosine and free fatty acid. This enzyme is overexpressed in multiple human cancers and may play a role in cancer progression. Mutations in this gene are associated with the lysosomal storage disorder, Farber lipogranulomatosis, and a neuromuscular disorder, spinal muscular atrophy with progressive myoclonic epilepsy. [provided by RefSeq, Oct 2015].
Isoforms & Proteins
19 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.
| Transcript | UniProt | Mutations | Peptides |
|---|---|---|---|
| ENST00000637790 | Q13510 | 198 | 137 |
| ENST00000381733 | Q13510-2 | 190 | 132 |
| ENST00000637991 | A0A1B0GTZ5* | 182 | 126 |
| ENST00000637636 | A0A1B0GUH5* | 180 | 126 |
| ENST00000314146 | Q13510-3 | 179 | 121 |
| ENST00000636171 | A0A1B0GTM3* | 174 | 122 |
| ENST00000636577 | A0A1B0GUA4* | 174 | 122 |
| ENST00000637528 | A0A1B0GW68* | 173 | 121 |
| ENST00000520781 | E7EMM4* | 172 | 120 |
| ENST00000636691 | A0A1B0GUE3* | 163 | 112 |
| ENST00000637922 | A0A1B0GUE3* | 163 | 112 |
| ENST00000636455 | A0A1B0GVG2* | 158 | 109 |
| ENST00000636997 | A0A1B0GUG1* | 153 | 113 |
| ENST00000636128 | A0A1B0GTP7* | 140 | 91 |
| ENST00000636537 | A0A1B0GU06* | 86 | 52 |
| ENST00000637638 | A0A1B0GW48* | 80 | 48 |
| ENST00000637561 | A0A1B0GVJ1* | 76 | 46 |
| ENST00000636269 | A0A1B0GVA3* | 59 | 32 |
| ENST00000637872 | A0A1B0GVA3* | 59 | 32 |
Gene Properties
Recurrent Mutations
All 137 amino-acid changes on canonical ENST00000637790 · 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 ASAH1 · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in ASAH1 – 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 |
|---|---|---|
| Gastrointestinal Stromal Tumour | 0/0 0% | 6/133 5% |
| Chronic Myelogenous Leukemia | 1/25 4% | 0/0 0% |
| T-Cell Non-Hodgkins Lymphoma | 1/26 4% | 0/0 0% |
| Endometrial Carcinoma | 0/42 0% | 10/612 2% |
| Cervical Carcinoma | 0/35 0% | 5/422 1% |
| Melanoma | 1/210 0% | 21/1899 1% |
| Esophageal Carcinoma | 0/23 0% | 8/769 1% |
| Bladder Carcinoma | 0/58 0% | 9/956 1% |
| Burkitts Lymphoma | 0/32 0% | 2/196 1% |
| Non-Small Cell Lung Carcinoma | 4/304 1% | 10/1390 1% |
| Gastric Carcinoma | 3/74 4% | 11/1809 1% |
| Colorectal Carcinoma | 6/143 4% | 19/3239 1% |
| Hodgkins Lymphoma | 0/16 0% | 1/122 1% |
| Other Sarcomas | 1/69 1% | 4/699 1% |
| Ewings Sarcoma | 2/63 3% | 0/262 0% |
| Thyroid Gland Carcinoma | 1/45 2% | 9/1592 1% |
| Squamous Cell Lung Carcinoma | 0/57 0% | 5/810 1% |
| Other Solid Cancers | 1/94 1% | 8/1515 1% |
| Ovarian Carcinoma | 3/109 3% | 3/998 0% |
| Germ Cell Tumour | 1/25 4% | 0/169 0% |
| Rhabdomyosarcoma | 1/33 3% | 0/171 0% |
| Mesothelioma | 1/62 2% | 0/165 0% |
| Non-Cancerous | 0/104 0% | 4/830 0% |
| Biliary Tract Carcinoma | 0/54 0% | 4/950 0% |
| Hepatocellular Carcinoma | 0/46 0% | 9/2210 0% |
| Meningioma | 1/3 33% | 0/252 0% |
| Small Cell Lung Carcinoma | 0/9 0% | 3/752 0% |
| Glioma | 1/52 2% | 7/2127 0% |
| Other Blood Cancers | 3/61 5% | 5/2725 0% |
| Head and Neck Carcinoma | 0/85 0% | 4/1574 0% |
Mutation Distribution
Where ASAH1 is mutated · all tissues, split by cell line vs tissue
How many mutations in ASAH1 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 2,759 mutations in ASAH1
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 |
|---|