We aim to both understand and ultimately control the process of cell growth. We are identifying the key proteins that regulate how and when cells divide. We are particularly interested in the arrangement of proteins within cells; just as the placement of gears within an engine is critical for its function, so it is in cells. Many proteins do different things in different places and by repositioning proteins, cells can change their function. We rearrange proteins within cells to determine their function at a specific location and can drag them to new locations within the cell to change the way that they grow. In this way we aim to understand how cells normally regulate their growth and identify ways to modify this.