By distributing regulation to both the GTPase and downstream kinases, the Mitotic Exit Network creates a single signal from spatial and temporal inputs.
Emily F Ruff, Joseph M Muretta ... Nicholas M Levinson
Phosphorylation of Aurora A does not trigger a population shift to the active state as previously thought, but instead switches the kinase on by tuning the structure and dynamics of a dynamically sampled subpopulation.
Building on previous work (Booth et al, 2014), we show how two mitotic phosphatases are formed, how they are regulated by opposing kinases during the cell cycle and reveal a novel opportunity for the development of cancer therapeutics.
Bert van de Kooij, Pau Creixell ... Michael B Yaffe
The human NimA-related kinases (Neks) recognize divergent substrate motifs, and include Nek10 as a dual-specificity serine/tyrosine kinase, and Nek6, Nek7 and Nek9 as amplifiers of the Plk1 phospho-motif.
The microtubule organizing potential of the centrosome is inactivated in a stepwise process through phosphatase activity and mechanical disruption to remove an aging matrix of proteins.