Journal
CELL DIVISION
Volume 1, Issue -, Pages -Publisher
BMC
DOI: 10.1186/1747-1028-1-25
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Funding
- Belgian Federation against Cancer
- Communaute francaise de Belgique - Actions de Recherches Concertees
- Belgian Fund for Scientific Medical Research (FRSM)
- National Fund for Scientific Research (FNRS, Belgium)
- Televie
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Cyclin-dependent kinase (CDK)4 is a master integrator that couples mitogenic and antimitogenic extracellular signals with the cell cycle. It is also crucial for many oncogenic transformation processes. In this overview, we address various molecular features of CDK4 activation that are critical but remain poorly known or debated, including the regulation of its association with D-type cyclins, its subcellular location, its activating Thr172-phosphorylation and the roles of Cip/Kip CDK inhibitors in these processes. We have recently identified the T-loop phosphorylation of CDK4, but not of CDK6, as a determining target for cell cycle control by extracellular factors, indicating that CDK4-activating kinase(s) might have to be reconsidered.
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