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Cell Div. 2015 Jun 20;10:4. doi: 10.1186/s13008-015-0010-1. eCollection 2015.

Sumo and the cellular stress response.

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Institute for Microbiology, Oslo University Hospital, Sognsvannsveien 20N-0027, Oslo, Norway.


The ubiquitin family member Sumo has important functions in many cellular processes including DNA repair, transcription and cell division. Numerous studies have shown that Sumo is essential for maintaining cell homeostasis when the cell encounters endogenous or environmental stress, such as osmotic stress, hypoxia, heat shock, genotoxic stress, and nutrient stress. Regulation of transcription is a key component of the Sumo stress response, and multiple mechanisms have been described by which Sumo can regulate transcription. Although many individual substrates have been described that are sumoylated during the Sumo stress response, an emerging concept is modification of entire complexes or pathways by Sumo. This review focuses on the function and regulation of Sumo during the stress response.


DNA damage response; ER stress; Nutrient stress; SIMs; Stress response; Sumo; Transcription; Viral infections

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