Polo boxes form a single functional domain that mediates interactions with multiple proteins in fission yeast polo kinase.

Abstract excerpt

Polo kinases play multiple roles in cell cycle regulation in eukaryotic cells. In addition to the kinase domain, conservation at the primary sequence level is also found in the non-catalytic region mainly in three blocks, namely the polo boxes. Although several studies have implicated the polo boxes in protein localisation, no systematic study to elucidate the roles of individual polo boxes has been carried out....

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