Vázquez-Novelle MD, Sansregret L, Dick AE, Smith CA, McAinsh AD, Gerlich DW, Petronczki M.

Curr Biol. 2014 Mar 17;24(6):638-45. doi:10.1016/j.cub.2014.01.034

Cdk1 inactivation terminates mitotic checkpoint surveillance and stabilizes kinetochore attachments in anaphase

Three states for the cell cycle's checkpoints: engaged, satisfied, and disabled. Degradation of Cyclin B1 disables the mitotic checkpoint surveillance.