Figure 3
From: Incremental and unifying modelling formalism for biological interaction networks
A small interaction network representing the chemical species CI and the (regulatory) site named OR 1. Left. The influence ICR links the affinity labeled OR of species CI with the site OR 1, and the influence IRC links the site OR 1 and the species CI. In the λ switch, the regulatory site OR 1 corresponds to the regulatory region in the DNA molecule coding for the protein CI. Thus, CI can influence the regulatory site OR 1, and the activity of CI can be regulated through the regulatory site OR 1. Right. The corresponding relation indicating the biologically observed states of the network.