Contents

21 April 2009
Vol 2, Issue 67

About The Cover

Cover image expansion

COVER This week, Science Signaling publishes a Focus Issue on mTOR that features a collection of Perspectives and a Podcast that discuss how new pharmacological agents and knockdown of mTOR complex (mTORC)–specific subunits are providing new insights into physiological roles for mTOR signaling. The image shows the first mTOR inhibitor--rapamycin bound to FKBP-12 (PDB: 1fkb). [Image: Christopher Bickel, AAAS]