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 | 345 | 31 | 304 |
| Samples | 183 | 21 | 156 |
| Peptides | 117 | 15 | 101 |
Function
HLA-DRA · Major histocompatibility complex, class II, DR alpha
HLA-DRA is one of the HLA class II alpha chain paralogues. This class II molecule is a heterodimer consisting of an alpha and a beta chain, both anchored in the membrane. This molecule is expressed on the surface of various antigen presenting cells such as B lymphocytes, dendritic cells, and monocytes/macrophages, and plays a central role in the immune system and response by presenting peptides derived from extracellular proteins, in particular, pathogen-derived peptides to T cells. The alpha chain is approximately 33-35 kDa and its gene contains 5 exons. Exon 1 encodes the leader peptide, exons 2 and 3 encode the two extracellular domains, and exon 4 encodes the transmembrane domain and the cytoplasmic tail. DRA does not have polymorphisms in the peptide binding part and acts as the sole alpha chain for DRB1, DRB3, DRB4 and DRB5. [provided by RefSeq, Aug 2020].
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 110 amino-acid changes on canonical ENST00000395388 · 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 HLA-DRA · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in HLA-DRA – 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 | 2/25 8% | 0/0 0% |
| Oral Cavity Carcinoma | 2/54 4% | 0/0 0% |
| Unknown | 0/10 0% | 1/29 3% |
| Hodgkins Lymphoma | 0/16 0% | 3/122 2% |
| Glioblastoma | 2/98 2% | 0/0 0% |
| Melanoma | 1/210 0% | 33/1899 2% |
| Other Solid Cancers | 1/94 1% | 22/1515 1% |
| Endometrial Carcinoma | 2/42 5% | 4/612 1% |
| Gastric Carcinoma | 0/74 0% | 15/1809 1% |
| Bladder Carcinoma | 0/58 0% | 7/956 1% |
| Squamous Cell Lung Carcinoma | 0/57 0% | 5/810 1% |
| Colorectal Carcinoma | 1/143 1% | 18/3239 1% |
| Esophageal Carcinoma | 0/23 0% | 4/769 1% |
| Rhabdomyosarcoma | 1/33 3% | 0/171 0% |
| Non-Small Cell Lung Carcinoma | 5/304 2% | 3/1390 0% |
| Cervical Carcinoma | 0/35 0% | 2/422 0% |
| Prostate Carcinoma | 0/13 0% | 9/2105 0% |
| Meningioma | 0/3 0% | 1/252 0% |
| Pancreatic Carcinoma | 0/89 0% | 6/1611 0% |
| Ewings Sarcoma | 1/63 2% | 0/262 0% |
| Ovarian Carcinoma | 1/109 1% | 2/998 0% |
| Small Cell Lung Carcinoma | 0/9 0% | 2/752 0% |
| Thyroid Gland Carcinoma | 0/45 0% | 4/1592 0% |
| Glioma | 0/52 0% | 5/2127 0% |
| Biliary Tract Carcinoma | 0/54 0% | 2/950 0% |
| Neuroendocrine Tumour | 0/154 0% | 1/577 0% |
| Head and Neck Carcinoma | 0/85 0% | 2/1574 0% |
| B-Cell Non-Hodgkins Lymphoma | 0/88 0% | 3/2534 0% |
| Non-Cancerous | 0/104 0% | 1/830 0% |
| Breast Carcinoma | 0/144 0% | 3/3264 0% |
Mutation Distribution
Where HLA-DRA is mutated · all tissues, split by cell line vs tissue
How many mutations in HLA-DRA 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 345 mutations in HLA-DRA
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 |
|---|