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Letter

Nature Cell Biology 9, 106–112 (1 January 2007) | doi:10.1038/ncb1523

Cdk and APC activities limit the spindle-stabilizing function of Fin1 to anaphase

Erika L. Woodbury & David O. Morgan

The fidelity of chromosome segregation depends on proper regulation of mitotic spindle behaviour. In anaphase, spindle stability is promoted by the dephosphorylation of cyclin-dependent kinase (Cdk) substrates, which results from Cdk inactivation and phosphatase activation.