Author: ["Robert Habedanck","York-Dieter Stierhof","Christopher J. Wilkinson","Erich A. Nigg"]
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Abstract
The human Polo-like kinase 1 (PLK1) and its functional homologues that are present in other eukaryotes have multiple, crucial roles in meiotic and mitotic cell division1,2. By contrast, the functions of other mammalian Polo family members remain largely unknown. Plk4 is the most structurally divergent Polo family member; it is maximally expressed in actively dividing tissues and is essential for mouse embryonic development3. Here, we identify Plk4 as a key regulator of centriole duplication. Both gain- and loss-of-function experiments demonstrate that Plk4 is required — in cooperation with Cdk2, CP110 and Hs-SAS6 — for the precise reproduction of centrosomes during the cell cycle. These findings provide an attractive explanation for the crucial function of Plk4 in cell proliferation and have implications for the role of Polo kinases in tumorigenesis.Cite this article
Habedanck, R., Stierhof, YD., Wilkinson, C. et al. The Polo kinase Plk4 functions in centriole duplication. Nat Cell Biol 7, 1140–1146 (2005). https://doi.org/10.1038/ncb1320 