Regulation and function of the protein tyrosine phosphatase TCPTP in mitosis

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The cell cycle is a universal process by which cells reproduce and it underlies the growth and development of all living organisms. The most important events of the cell cycle concern the replication of chromosomal DNA during S phase and the separation of replicated DNA into progeny cells at mitosis. Mitosis is morphologically the most dynamic phase of the cell cycle and involves the precise coordination of many processes that are governed by reversible protein phosphorylation. Protein phosphatases play an important role in reversible protein phosphorylation and they are essential for mitosis. This grant proposal is focused on understanding the regulation and function of protein phosphatases in mitosis. Our studies will provide novel insight into processes mediating mitosis and may lead to the development of alternative strategies for treating cancer.