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 | 742 | 143 | 580 |
| Samples | 618 | 124 | 480 |
| Peptides | 531 | 102 | 433 |
Function
HDAC4 · Histone deacetylase 4
Histones play a critical role in transcriptional regulation, cell cycle progression, and developmental events. Histone acetylation/deacetylation alters chromosome structure and affects transcription factor access to DNA. The protein encoded by this gene belongs to class II of the histone deacetylase/acuc/apha family. It possesses histone deacetylase activity and represses transcription when tethered to a promoter. This protein does not bind DNA directly, but through transcription factors MEF2C and MEF2D. It seems to interact in a multiprotein complex with RbAp48 and HDAC3. [provided by RefSeq, Jul 2008].
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.
| Transcript | UniProt | Mutations | Peptides |
|---|---|---|---|
| ENST00000345617 | P56524 | 623 | 468 |
| ENST00000543185 | A0A7I2SVS4* | 119 | 101 |
Gene Properties
Recurrent Mutations
All 468 amino-acid changes on canonical ENST00000345617 · 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 HDAC4 · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in HDAC4 – 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-Cell Non-Hodgkins Lymphoma | 3/26 12% | 0/0 0% |
| Chronic Myelogenous Leukemia | 2/25 8% | 0/0 0% |
| Endometrial Carcinoma | 8/42 19% | 36/612 6% |
| Melanoma | 13/210 6% | 56/1899 3% |
| Gastric Carcinoma | 7/74 9% | 49/1809 3% |
| Colorectal Carcinoma | 22/143 15% | 68/3239 2% |
| Non-Small Cell Lung Carcinoma | 12/304 4% | 30/1390 2% |
| Acute Myeloid Leukemia | 2/90 2% | 0/0 0% |
| Neuroendocrine Tumour | 9/154 6% | 7/577 1% |
| Other Solid Cancers | 3/94 3% | 32/1515 2% |
| Squamous Cell Lung Carcinoma | 1/57 2% | 16/810 2% |
| Cervical Carcinoma | 2/35 6% | 6/422 1% |
| Hodgkins Lymphoma | 2/16 12% | 0/122 0% |
| Thyroid Gland Carcinoma | 0/45 0% | 22/1592 1% |
| Bladder Carcinoma | 1/58 2% | 11/956 1% |
| Other Sarcomas | 1/69 1% | 8/699 1% |
| Glioblastoma | 1/98 1% | 0/0 0% |
| Biliary Tract Carcinoma | 0/54 0% | 10/950 1% |
| Ovarian Carcinoma | 4/109 4% | 7/998 1% |
| Hepatocellular Carcinoma | 1/46 2% | 21/2210 1% |
| Osteosarcoma | 2/45 4% | 0/166 0% |
| Head and Neck Carcinoma | 2/85 2% | 13/1574 1% |
| Esophageal Carcinoma | 1/23 4% | 6/769 1% |
| Small Cell Lung Carcinoma | 0/9 0% | 6/752 1% |
| Gastrointestinal Stromal Tumour | 0/0 0% | 1/133 1% |
| Esophageal Squamous Cell Carcinoma | 2/51 4% | 16/2550 1% |
| Glioma | 1/52 2% | 13/2127 1% |
| Ewings Sarcoma | 1/63 2% | 1/262 0% |
| Plasma Cell Myeloma | 2/44 5% | 0/305 0% |
| Breast Carcinoma | 4/144 3% | 15/3264 0% |
Mutation Distribution
Where HDAC4 is mutated · all tissues, split by cell line vs tissue
How many mutations in HDAC4 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 742 mutations in HDAC4
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 |
|---|