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 | 1,431 | 219 | 1,192 |
| Samples | 1,178 | 195 | 968 |
| Peptides | 885 | 135 | 784 |
Function
PPP1R3A · Protein phosphatase 1 regulatory subunit 3A
The glycogen-associated form of protein phosphatase-1 (PP1) derived from skeletal muscle is a heterodimer composed of a 37-kD catalytic subunit and a 124-kD targeting and regulatory subunit. This gene encodes the regulatory subunit which binds to muscle glycogen with high affinity, thereby enhancing dephosphorylation of glycogen-bound substrates for PP1 such as glycogen synthase and glycogen phosphorylase kinase. [provided by RefSeq, Jul 2008].
Isoforms & Proteins
1 transcript · 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 |
|---|---|---|---|
| ENST00000284601 | Q16821 | 1,431 | 885 |
Gene Properties
Recurrent Mutations
All 884 amino-acid changes on canonical ENST00000284601 · 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 PPP1R3A · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in PPP1R3A – 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 | 4/25 16% | 0/0 0% |
| Melanoma | 26/210 12% | 216/1899 11% |
| Oral Cavity Carcinoma | 5/54 9% | 0/0 0% |
| Endometrial Carcinoma | 8/42 19% | 50/612 8% |
| Non-Small Cell Lung Carcinoma | 31/304 10% | 76/1390 5% |
| Squamous Cell Lung Carcinoma | 3/57 5% | 41/810 5% |
| Other Solid Cancers | 5/94 5% | 74/1515 5% |
| Gastrointestinal Stromal Tumour | 0/0 0% | 6/133 5% |
| Gastric Carcinoma | 4/74 5% | 74/1809 4% |
| Colorectal Carcinoma | 18/143 13% | 99/3239 3% |
| Esophageal Carcinoma | 0/23 0% | 26/769 3% |
| Ovarian Carcinoma | 11/109 10% | 22/998 2% |
| Plasma Cell Myeloma | 4/44 9% | 6/305 2% |
| Bladder Carcinoma | 3/58 5% | 24/956 3% |
| Unknown | 1/10 10% | 0/29 0% |
| Rhabdomyosarcoma | 1/33 3% | 4/171 2% |
| Neuroendocrine Tumour | 11/154 7% | 6/577 1% |
| Small Cell Lung Carcinoma | 1/9 11% | 16/752 2% |
| Hodgkins Lymphoma | 2/16 12% | 1/122 1% |
| Cervical Carcinoma | 3/35 9% | 5/422 1% |
| Glioma | 1/52 2% | 33/2127 2% |
| Germ Cell Tumour | 2/25 8% | 1/169 1% |
| Head and Neck Carcinoma | 3/85 4% | 21/1574 1% |
| Other Sarcomas | 5/69 7% | 6/699 1% |
| Pheochromocytoma and Paraganglioma | 0/0 0% | 1/71 1% |
| Esophageal Squamous Cell Carcinoma | 3/51 6% | 33/2550 1% |
| Hepatocellular Carcinoma | 3/46 7% | 27/2210 1% |
| Breast Carcinoma | 13/144 9% | 26/3264 1% |
| Pancreatic Carcinoma | 5/89 6% | 14/1611 1% |
| Acute Myeloid Leukemia | 1/90 1% | 0/0 0% |
Mutation Distribution
Where PPP1R3A is mutated · all tissues, split by cell line vs tissue
How many mutations in PPP1R3A 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 17 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 1,431 mutations in PPP1R3A
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 |
|---|