MOL 40923 1 Ligand-directed signaling: 50 ways to find a lover Martin C. Michel and Astrid E. Alewijnse Dept. Pharmacology & Pharmacotherapy, Academic Medical Center, University of Amsterdam Molecular Pharmacology Fast Forward. Published on August 23, 2007 as doi:10.1124/mol.107.040923 Copyright 2007 by the American Society for Pharmacology and Experimental Therapeutics. This article has not been copyedited and formatted. The final version may differ from this version. Molecular Pharmacology Fast Forward. Published on August 23, 2007 as DOI: 10.1124/mol.107.040923 at ASPET Journals on January 6, 2022 molpharm.aspetjournals.org Downloaded from