The resurrection of the PIDDosome - emerging roles in the DNA-damage response and centrosome surveillance
Autor: | Valentina C. Sladky, Fabian Schuler, Luca L. Fava, Andreas Villunger |
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Rok vydání: | 2017 |
Předmět: |
0301 basic medicine
RFC5 Death Domain Receptor Signaling Adaptor Proteins DNA damage Apoptosis Plasma protein binding Biology Polyploidy 03 medical and health sciences RIPK1 chemistry.chemical_compound IKBKG Animals Humans Death domain Genetics Centrosome Caspase 2 CRADD Signaling Adaptor Protein Cell Differentiation Cell Biology Cell biology 030104 developmental biology chemistry Multiprotein Complexes Nucleophosmin DNA DNA Damage |
Zdroj: | Journal of cell science. 130(22) |
ISSN: | 1477-9137 |
Popis: | The PIDDosome is often used as the alias for a multi-protein complex that includes the p53-induced death domain protein 1 (PIDD1), the bipartite linker protein CRADD (also known as RAIDD) and the pro-form of an endopeptidase belonging to the caspase family, i.e. caspase-2. Yet, PIDD1 variants can also interact with a number of other proteins that include RIPK1 (also known as RIP1) and IKBKG (also known as NEMO), PCNA and RFC5, as well as nucleolar components such as NPM1 or NCL. This promiscuity in protein binding is facilitated mainly by autoprocessing of the full-length protein into various fragments that contain different structural domains. As a result, multiple responses can be mediated by protein complexes that contain a PIDD1 domain. This suggests that PIDD1 acts as an integrator for multiple types of stress that need instant attention. Examples are various types of DNA lesion but also the presence of extra centrosomes that can foster aneuploidy and, ultimately, promote DNA damage. Here, we review the role of PIDD1 in response to DNA damage and also highlight novel functions of PIDD1, such as in centrosome surveillance and scheduled polyploidisation as part of a cellular differentiation program during organogenesis. |
Databáze: | OpenAIRE |
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