The Cook lab studies the major transitions in the cell division cycle and how perturbations in cell cycle control affect genome stability. We have particular interest in mechanisms that control protein abundance and localization at transitions into and out of S phase (DNA replication phase) and into an out of quiescence. We use a variety of molecular biology, cell biology, biochemical, and genetic techniques to manipulate and evaluate human cells as they proliferate or exit the cell cycle. We collaborate with colleagues interested in the interface of cell cycle control with developmental biology, signal transduction, DNA damage responses, and oncogenesis.