Fig. 6.
Schematic diagram of the mechanism by which srGAP1 mediating the tumor-suppressive activity of Slit2 in CRC. Slit2 inhibits CRC cell migration through the srGAP1-Cdc42 axis, and USP33 is required for the inhibitory function of Slit2-Robo1 by deubiquitinating and stabilizing Robo1 as well as taking part in the redistribution of Robo1 to the plasma membrane stimulated by Slit2