Human DEPTOR/DEPDC6 Antibody

DEPDC6 (DEP domain-containing protein 6; also DEPTOR) is a 47-48 kDa DEP (Disheveled/Egl10/Pleckstrin) domain-containing protein found in a wide variety of cells. It is a component of the IGF/Ins activated mTOR complexes 1 and 2 (TORC1 and 2) that promote S6K1 and Akt phosphorylation, respectively. Within TORC1, DEPDC6 acts as a natural inhibitor of mTOR kinase, suppressing S6K1 activity. Conversely, this inhibition of mTOR promotes TORC2 activation and Akt activity. In general, a decline in DEPDC6 activity promotes both an increase in cell size and lifespan. Human DEPDC6 is 409 amino acids (aa) in length. It is acetylated on Met1, contains two DEP domains (aa 36-119 and 145-219), and ends with a mTOR-interacting PDZ domain (aa 330-407). There are at least 13 utilized Ser/Thr phosphorylation sites. Although no splice variants have been reported, the highly orthologous mouse form of DEPDC6 does show a 34 aa substitution for the C-terminal 42 aa, suggesting that this splicing event may occur in human. Over aa 31-158, human DEPDC6 shares 98% aa sequence identity with mouse DEPDC6.