Figure 4. An intact GATOR1 is necessary for mTORC1 inhibition upon amino acid starvation.
a. Three loops in the SABA domain of Depdc5 mediate the Depdc5-Nprl2 interaction. Loops A, B, and C are colored in red, orange, and blue, respectively. b. Compound mutant of loop A and loop B in Depdc5 disrupts GATOR1 assembly. c. Expression of Dedpc5 mutant that prevents GATOR1 assembly does not restore normal mTORC1 signaling in cells lacking Depdc5. Data (b & c) are the representatives of two independent experiments.