| Function | Antiproliferative and proapoptotic protein involved in cell stress response which acts as a dual regulator of transcription and autophagy. Acts as a positive regulator of autophagy. In response to cellular stress or activation of autophagy, relocates to autophagosomes where it interacts with autophagosome-associated proteins GABARAP, GABARAPL1/L2, MAP1LC3A/B/C and regulates autophagy. Acts as an antioxidant and plays a major role in p53/TP53-driven oxidative stress response. Possesses both a p53/TP53-independent intracellular reactive oxygen species (ROS) regulatory function and a p53/TP53-dependent transcription regulatory function. Positively regulates p53/TP53 and p73/TP73 and stimulates their capacity to induce apoptosis and regulate cell cycle. In response to double-strand DNA breaks, promotes p53/TP53 phosphorylation on 'Ser-46' and subsequent apoptosis. Acts as a tumor suppressor by inducing cell death by an autophagy and caspase-dependent mechanism. Can reduce cell migration by regulating the expression of SPARC. |
| Protein Name | Tumor Protein P53-Inducible Nuclear Protein 1Stress-Induced ProteinP53-Dependent Damage-Inducible Nuclear Protein 1P53dinp1 |
| Database Links | Reactome: R-HSA-6803204Reactome: R-HSA-6804756 |
| Cellular Localisation | CytoplasmCytosolNucleusPml BodyCytoplasmic VesicleAutophagosomeShuttles Between The Nucleus And The CytoplasmDepending On Cellular Stress ConditionsAnd Re-Localizes To Autophagosomes On Autophagy Activation |
| Alternative Protein Names | Tumor Protein P53-Inducible Nuclear Protein 1 proteinStress-Induced Protein proteinP53-Dependent Damage-Inducible Nuclear Protein 1 proteinP53dinp1 proteinTP53INP1 proteinP53DINP1 proteinSIP protein |
Information sourced from Uniprot.org
