Figure 2Figure 2: Presentation of ligands by the receptor
Step 1: The Frazzled receptor manifested by the transverse nerve recognizes Netrin, and causes axonal elongation.
Step 2: During that time, Frazzled captures Netrin and reorganizes its distribution.
Step 3: Next, Frazzled presents Netrin to another cell (dMP2), and carries out the guidance of the longitudinal axon, which is the next patterning.