Chromatin remodeler Isw1 prevents export of maturing ribonucleoprotein particles. Here, the authors show that Isw1 inhibits the Unfolded Protein Response (UPR) from the nucleus by binding and restricting export of the mRNA encoding the main effector of UPR, thereby tuning adaptation to ER stress.
- Laura Matabishi-Bibi
- Drice Challal
- Anna Babour