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 | 180 | 21 | 147 |
| Samples | 62 | 10 | 51 |
| Peptides | 47 | 7 | 38 |
Function
PTRH2 · Peptidyl-tRNA hydrolase 2
The protein encoded by this gene is a mitochondrial protein with two putative domains, an N-terminal mitochondrial localization sequence, and a UPF0099 domain. In vitro assays suggest that this protein possesses peptidyl-tRNA hydrolase activity, to release the peptidyl moiety from tRNA, thereby preventing the accumulation of dissociated peptidyl-tRNA that could reduce the efficiency of translation. This protein also plays a role regulating cell survival and death. It promotes survival as part of an integrin-signaling pathway for cells attached to the extracellular matrix (ECM), but also promotes apoptosis in cells that have lost their attachment to the ECM, a process called anoikos. After loss of cell attachment to the ECM, this protein is phosphorylated, is released from the mitochondria into the cytosol, and promotes caspase-independent apoptosis through interactions with transcriptional regulators. This gene has been implicated in the development and progression of tumors, and mutations in this gene have been associated with an infantile multisystem neurologic, endocrine, and pancreatic disease (INMEPD) characterized by intellectual disability, postnatal microcephaly, progressive cerebellar atrophy, hearing impairment, polyneuropathy, failure to thrive, and organ fibrosis with exocrine pancreas insufficiency (PMID: 25574476). Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Mar 2015].
Isoforms & Proteins
3 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 42 amino-acid changes on canonical ENST00000393038 · 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 PTRH2 · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in PTRH2 – 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 | 2/40 5% | 0/0 0% |
| Mesothelioma | 0/62 0% | 2/165 1% |
| Endometrial Carcinoma | 1/42 2% | 4/612 1% |
| Meningioma | 1/3 33% | 0/252 0% |
| Melanoma | 0/210 0% | 8/1899 0% |
| Colorectal Carcinoma | 4/143 3% | 8/3239 0% |
| Plasma Cell Myeloma | 0/44 0% | 1/305 0% |
| Esophageal Squamous Cell Carcinoma | 0/51 0% | 7/2550 0% |
| Gastric Carcinoma | 0/74 0% | 5/1809 0% |
| Esophageal Carcinoma | 0/23 0% | 2/769 0% |
| Biliary Tract Carcinoma | 0/54 0% | 2/950 0% |
| Pancreatic Carcinoma | 2/89 2% | 1/1611 0% |
| Hepatocellular Carcinoma | 0/46 0% | 3/2210 0% |
| Head and Neck Carcinoma | 0/85 0% | 2/1574 0% |
| Non-Cancerous | 0/104 0% | 1/830 0% |
| Bladder Carcinoma | 0/58 0% | 1/956 0% |
| Ovarian Carcinoma | 0/109 0% | 1/998 0% |
| Prostate Carcinoma | 0/13 0% | 1/2105 0% |
| Glioma | 0/52 0% | 1/2127 0% |
| B-Lymphoblastic Leukemia | 0/55 0% | 1/2640 0% |
| Breast Carcinoma | 0/144 0% | 1/3264 0% |
Mutation Distribution
Where PTRH2 is mutated · all tissues, split by cell line vs tissue
How many mutations in PTRH2 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 180 mutations in PTRH2
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 |
|---|