Fig. 7 | Nature Communications

Fig. 7

From: Coupling of Polo kinase activation to nuclear localization by a bifunctional NLS is required during mitotic entry

Fig. 7

Spatiotemporal model for the coordination of mitotic entry. At the G2/M transition, activated Polo translocates to the nucleus and phosphorylates Cdc25. Cdc25 starts to relocalize to the cytoplasm during prophase where it begins to activate Cdk1 (1). In the nucleus, Cyclin B-Cdk1 reinforces Polo-dependent relocalization of Cdc25 (2). This positive feedback mechanism accelerates the generation of fully active Cyclin B-Cdk1 (3) allowing chromosome condensation and lamina disassembly at mitotic entry

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