Mutations in DEPDC5 and NPRL3 subunits of GATOR1, a modulator of mechanistic target of rapamycin (mTOR), are linked to malformations of cortical development (MCD).
As DEPDC5 is a negative regulator of the mammalian target of rapamycin (mTOR) pathway, it is likely that some patients with DEPDC5 mutations may have malformations of cortical development akin to the two-hit hypothesis suggested in tuberous sclerosis.