From 2007.igem.org

The varying system parameters are K1, K2, K3 which represents the strength of the interaction beetween PHO80PHO85, PHO8, PHO4. The following pictures show PHO8/PHO80PHO85. Different working conditions are simulated: this is done using different values for SA and SB, which represent the level of oleic acid concentration. For each working condition two parameters are varied in the range [0 1].