One unifying aspect of these methods is that we are expecting extracellular interactions to be very weak, and so we purposefully increase
binding avidity when performing our receptor interaction screens experiments by oligomerising the protein probes.
By examining a number of receptor systems (see figure), the researchers demonstrated that receptor system response can be characterized as being either
avidity - controlled, which depends primarily on ligand capture efficiency; consumption - controlled, where the ability to internalize surface -
bound ligand is the primary control parameter; and dual - sensitive, in which both the
avidity and consumption parameters are important.