Article
Temperature-Sensitive Substrate and Product Binding Underlie Temperature-Compensated Phosphorylation in the Clock.
Molecular cell - 7 Sept 2017
Shinohara Yuta, Koyama Yohei M, Ukai-Tadenuma Maki, Hirokawa Takatsugu, Kikuchi Masaki, Yamada Rikuhiro G, Ukai Hideki, Fujishima Hiroshi, Umehara Takashi, Tainaka Kazuki, Ueda Hiroki R
Abstract excerpt
Temperature compensation is a striking feature of the circadian clock. Here we investigate biochemical mechanisms underlying temperature-compensated, CKIδ-dependent multi-site phosphorylation in mammals. We identify two mechanisms for temperature-insensitive phosphorylation at higher temperature: lower substrate affinity to CKIδ-ATP complex and higher product affinity to CKIδ-ADP complex. Inhibitor screening of...
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