Comment on

• Greatwall phosphorylates an inhibitor of protein phosphatase 2A that is essential for mitosis.

  Mochida S, Maslen SL, Skehel M, Hunt T. Mochida S, et al. Science. 2010 Dec 17;330(6011):1670-3. doi: 10.1126/science.1195689. Science. 2010. PMID: 21164013
• The substrate of Greatwall kinase, Arpp19, controls mitosis by inhibiting protein phosphatase 2A.

  Gharbi-Ayachi A, Labbé JC, Burgess A, Vigneron S, Strub JM, Brioudes E, Van-Dorsselaer A, Castro A, Lorca T. Gharbi-Ayachi A, et al. Science. 2010 Dec 17;330(6011):1673-7. doi: 10.1126/science.1197048. Science. 2010. PMID: 21164014