Abstract: A method of identifying a compound which modulates the interaction between a PP1c and a regulatory subunit thereof, the method comprising determining whether a compound enhances or disrupts the interaction between (a) a PP1c or a fragment, variant, derivative or fusion thereof or a fusion of a fragment, variant or derivative and (b) a regulatory subunit which is able to bind to PP1c or a PP1c-binding fragment, variant, derivative or fusion of the subunit or a fusion of the fragment, variant or derivative. A method of affecting cellular metabolism or function, the method comprising administering to a cell (a) a compound which modulates the interaction between a PP1c and a regulatory subunit thereof or (b) a compound which mimics the effect of a regulatory subunit of PP1c or (c) a peptide capable of binding a PP1c and which affects the ability of PP1c to bind to a particular target and/or affects the regulation of PP1c activity, or a functional equivalent thereof.

Abstract: Disclosed are crystallisable mutants of protein kinase B/Akt, crystals of these mutants, and X-ray coordinate data for the crystals. Methods of use of the coordinate data for identification of modulators of protein kinase activity and for structural analysis of other protein kinases are provided. Also provided are methods of activating protein kinases, in particular AGC kinases, using peptide or non-peptide mimetics of sequences from protein kinase B/Akt, or other AGC protein kinases such as PRK2.

Abstract: Disclosed are mutants of protein kinase B/Akt which can be crystallised in an enzymatically active conformation, crystals of these mutants and X-ray coordinate data for the crystals. Also disclosed are methods of using the coordinate data provided for identification of modulators of protein kinase activity and for structural analysis of other protein kinases, in particular AGC kinases.