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Research Article Open access CC BY 3.0

TRAP1 is a Novel Interaction Partner of PML, Localized with PML in Nuclear Bodies and Relocating with PML to the Cytoplasm Following Stress

E. W. Stratford, O. Myklebost

Annual Research & Review in Biology · pp. 3026–3036 · Published 31 May 2014

10.9734/ARRB/2014/8998

Abstract

Aims: The aim of the study was to identify a novel interaction partner of PML and to study the localization of the novel protein complex in cells. Study Design: Isolation of PML and interacting protein complexes by co-immunoprecipitation using a PML antibody and subsequent mass spectrometry analyses. Place and Duration of Study: Department of Medical and Molecular Genetics, Guy’s Hospital, London between 2002 and 2005 and Cancer Stem Cell Innovation Centre and Department of Tumor Biology, Norwegian Radium Hospital, Oslo between 2011-2014. Methodology: Interacting proteins of PML were isolated from K562 cell lysates by large scale co-immunoprecipitation and mass spectrometry. The complex formation was confirmed by standard co-immunoprecipitations and confocal microscopy. The cellular localization of the protein complex was further studied by confocal microscopy in different cell types and following exposure to stress. Results: We have identified tumor necrosis factor receptor protein 1 (TRAP1) as an interacting partner of PML. A fraction of TRAP1 is localized to PML nuclear bodies (NBs) in human cancerous cells and normal mouse embryonic fibroblasts, indicating conservation across species. PML and TRAP1 are both implicated in regulation of cell death and survival, with PML acting as an inducer of apoptosis and TRAP1 as protector from cell death. Exposure to stress, results in relocation of TRAP1 - PML from NBs to cytoplasmic punctate structures, indicating a role for this complex in stress-response. Conclusion: TRAP1 and PML interact in normal and cancerous cells. The complex may play a role in stress response.

TRAP-1 PML NBs nuclear bodies mass spectrometry.

References (28)

  1. 1 Targeting the dynamic HSP90 complex in cancer [DOI]
  2. 2 Pml Is Critical for Nd10 Formation and Recruits the Pml-Interacting Protein Daxx to This Nuclear Structure When Modified by Sumo-1 [DOI]
  3. 3 PINK1 Protects against Oxidative Stress by Phosphorylating Mitochondrial Chaperone TRAP1 [DOI]
  4. 4 Regulation of proliferation, survival and apoptosis by members of the TNF superfamily [DOI]
  5. 5 Pml is essential for multiple apoptotic pathways [DOI]
  6. 6 PML Regulates Apoptosis at Endoplasmic Reticulum by Modulating Calcium Release [DOI]
  7. 7 The hsp90-related Protein TRAP1 Is a Mitochondrial Protein with Distinct Functional Properties [DOI]
  8. 8 Cytoplasmic PML function in TGF-β signalling [DOI]
  9. 9 Pondering the Promyelocytic Leukemia Protein (PML) Puzzle: Possible Functions for PML Nuclear Bodies [DOI]
  10. 10 Identification of a Protein with Homology to hsp90 That Binds the Type 1 Tumor Necrosis Factor Receptor [DOI]
  11. 11 Heat Shock Protein 75 (TRAP1) Antagonizes Reactive Oxygen Species Generation and Protects Cells from Granzyme M-mediated Apoptosis [DOI]
  12. 12 TRAP-1, the mitochondrial Hsp90 [DOI]
  13. 13 Tumor necrosis factor-associated protein 1 (TRAP-1) protects cells from oxidative stress and apoptosis [DOI]
  14. 14 Regulation of apoptosis by PML and the PML-NBs [DOI]
  15. 15 TRAP1, a novel mitochondrial chaperone responsible for multi-drug resistance and protection from apoptotis in human colorectal carcinoma cells [DOI]
  16. 16 Cytoprotective Mitochondrial Chaperone TRAP-1 As a Novel Molecular Target in Localized and Metastatic Prostate Cancer [DOI]
  17. 17 PIC 1, a novel ubiquitin-like protein which interacts with the PML component of a multiprotein complex that is disrupted in acute promyelocytic leukaemia.
  18. 18 A New Member of the hsp90 Family of Molecular Chaperones Interacts with the Retinoblastoma Protein during Mitosis and after Heat Shock [DOI]
  19. 19 The molecular pathogenesis of acute promyelocytic leukaemia: implications for the clinical management of the disease [DOI]
  20. 20 Involvement of Tumor Necrosis Factor Receptor-associated Protein 1 (TRAP1) in Apoptosis Induced by β-Hydroxyisovalerylshikonin [DOI]
  21. 21 Size, position and dynamic behavior of PML nuclear bodies following cell stress as a paradigm for supramolecular trafficking and assembly [DOI]
  22. 22 Immunoelectron Microscopy Provides Evidence That Tumor Necrosis Factor Receptor-Associated Protein 1 (TRAP-1) Is a Mitochondrial Protein Which also Localizes at Specific Extramitochondrial Sites [DOI]
  23. 23 TRAP1 and the proteasome regulatory particle TBP7/Rpt3 interact in the endoplasmic reticulum and control cellular ubiquitination of specific mitochondrial proteins [DOI]
  24. 24 The nuclear bodies inside out: PML conquers the cytoplasm [DOI]
  25. 25 A Role for Cytoplasmic PML in Cellular Resistance to Viral Infection [DOI]
  26. 26 Nuclear domain 10 (ND10) associated proteins are also present in nuclear bodies and redistribute to hundreds of nuclear sites after stress [DOI]
  27. 27 Characterization of a new monoclonal antibody (PG-M3) directed against the aminoterminal portion of the PML gene product: immunocytochemical evidence for high expression of PML proteins on activated macrophages, endothelial cells, and epithelia [DOI]
  28. 28 The puzzling multiple lives of PML and its role in the genesis of cancer [DOI]

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