FIGURE 5.

A model for strigolactone reception. A model for the reception and signal transduction of the SL signal by the α/β hydrolase DAD2 is shown. DAD2 binds and reacts with SL, changing conformation to form DAD2*. DAD2* interacts with the F-box protein PhMAX2A and the other partners of the SCF^MAX2 complex. Target protein(s) are recognized by the DAD2-SCF^MAX2 complex and ubiquitinated. DAD2* hydrolyses SL, releasing the products of hydrolysis. DAD2 disengages from the SCF^MAX2 complex returning to its original conformation allowing it respond to fresh SL signal.