Dynamic anticipation by Cdk2/Cyclin A-bound p27 mediates signal integration in cell cycle regulation

oleh: Maksym Tsytlonok, Hugo Sanabria, Yuefeng Wang, Suren Felekyan, Katherina Hemmen, Aaron H. Phillips, Mi-Kyung Yun, M. Brett Waddell, Cheon-Gil Park, Sivaraja Vaithiyalingam, Luigi Iconaru, Stephen W. White, Peter Tompa, Claus A. M. Seidel, Richard Kriwacki

Format: Article
Diterbitkan: Nature Portfolio 2019-04-01

Deskripsi

The cyclin-dependent kinase (Cdk) inhibitor p27Kip1 (p27) folds upon binding to Cdk/cyclin complexes and during cell cycle progression p27 becomes phosphorylated, which triggers its ubiquitination and degradation. Here the authors use an integrated approach and show that Cdk2/cyclin A-bound p27 samples lowly-populated conformations that dynamically anticipate the sequential steps of the signaling cascade.