The interdomain helix between the kinase and RNase domains of IRE1α transmits the conformational change that underlies ER stress-induced activation.
D. Ricci, S. Tutton, I. Marrocco, M. Ying, D. Blumenthal, D. Eletto, J. Vargas, S. Boyle, H. Fazelinia, J. C. Paton, A. W. Paton, C.-H. A. Tang, C.-C. A. Hu, T. Gidalevitz, Y. Argon
This study identifies the interdomain helix between IRE1α kinase and RNase domains as critical for transmitting conformational changes during ER stress, revealing its role in regulating oligomerization, RNase activity, and kinase function.
bioRxiv · Jan 14, 2020 · PreprintBiochemistry