NIH 3T3 cell (mouse embryonic fibroblast line) stained for Actin (green) and DNA (blue). PLoS Biology February 2009|Volume 7|Issue 2| e1000038 Active-Site Inhibitors of mTOR Target Rapamycin-Resistant Outputs of mTORC1 and mTORC2 Morris E. Feldman, Beth Apsel, Aino Uotila, Robbie Loewith, Zachary A. Knight, Davide Ruggero, Kevan M. Shokat