• Call for Social Sciences Papers
  • Science Sessions: The PNAS Podcast Program
April 26, 2011; 108 (17)

Cover image

Cover image expansion

Cover image: Pictured is an abstract illustration of the chemical processes that occur during organic synthesis. Square tiles represent organic fragments that join together to create new compounds. The image depicts the insertion of a synthetic structure into a biological environment, such as the interactions of small synthetic molecules with their macromolecular protein targets. As described in the special feature, organic synthesis joins together small organic fragments in novel ways that are transforming the discovery of molecular probes and drugs. See the introductory perspective by Stuart L. Schreiber for the Organic Synthesis Toward Small-Molecule Probes and Drugs Special Feature on pages 6699–6702. Image courtesy of artist Daniel Kohn (Broad Institute, Cambridge, MA).

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