PIDD1 in cell cycle control, sterile inflammation and cell death
- PMID: 35343572
- PMCID: PMC9162469
- DOI: 10.1042/BST20211186
PIDD1 in cell cycle control, sterile inflammation and cell death
Abstract
The death fold domain-containing protein PIDD1 has recently attracted renewed attention as a regulator of the orphan cell death-related protease, Caspase-2. Caspase-2 can activate p53 to promote cell cycle arrest in response to centrosome aberrations, and its activation requires formation of the PIDDosome multi-protein complex containing multimers of PIDD1 and the adapter RAIDD/CRADD at its core. However, PIDD1 appears to be able to engage with multiple client proteins to promote an even broader range of biological responses, such as NF-κB activation, translesion DNA synthesis or cell death. PIDD1 shows features of inteins, a class of self-cleaving proteins, to create different polypeptides from a common precursor protein that allow it to serve these diverse functions. This review summarizes structural information and molecular features as well as recent experimental advances that highlight the potential pathophysiological roles of this unique death fold protein to highlight its drug-target potential.
Keywords: caspases; cell cycle; cell death; p53.
© 2022 The Author(s).
Conflict of interest statement
The authors declare that there are no competing interests associated with the manuscript.
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