Crystallization and preliminary X-ray diffraction studies on the human Plk1 Polo-box domain in complex with an unphosphorylated and a phosphorylated target peptide from Cdc25C.

Abstract excerpt

Polo-like kinase (Plk1) is crucial for cell-cycle progression via mitosis. Members of the Polo-like kinase family are characterized by the presence of a C-terminal domain termed the Polo-box domain (PBD) in addition to the N-terminal kinase domain. The PBD of Plk1 was cloned and overexpressed in Escherichia coli. Crystallization experiments of the protein in complex with an unphosphorylated and a phosphorylated...

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