Department of Molecular and Cellular Biology, College of Biological Sciences, University of California, Davis, CA 95616, USA. tpowers@ucdavis.edu
In a recent issue of Cell Metabolism, Porstmann et al. (2008) demonstrate that fatty acid biosynthesis, under the transcriptional control of SREBP1, is regulated by the rapamycin-sensitive mTOR signaling network, thus expanding the scope of biosynthetic processes integrated by mTOR.