In this model the values of "free CDK" (Id: x2), "cdc25_P" (x4) "Wee1_P" (Id: y5) and "APC" (Id: y6) are assigned using the parameters describing the total concentrations totcdk (Id: c)), totcdc5, totwee1 and totAPC. So if you want to change the levels of these proteins, you need to change the value...