Affiliation: | 1. Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA 02138, USA;2. Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts, Avenue 68-680, Cambridge, MA 02139, USA;3. Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA;4. Howard Hughes Medical Institute, Massachusetts Institute of Technology, Cambridge, MA 02139, USA;5. Center for Environmental Health Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA;1. Molecular Catalysis, Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstr. 4, D-85747 Garching bei München, Germany;2. Chair of Inorganic and Metal-Organic Chemistry, Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstr. 4, D-85747 Garching bei München, Germany;3. DSM Nutritional Products, Research and Development, P.O. Box 2676, CH-4002 Basel, Switzerland |