1. Department
of Chemistry, The Scripps Research Institute, Jupiter, Florida 33458, United States
2. Department
of Biosciences, Rice University, Houston, Texas 77005, United States
3. Midwest
Center for Structural Genomics and Structural Biology Center, Biosciences
Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
4. Department
of Molecular Therapeutics, The Scripps Research Institute, Jupiter, Florida 33458, United States
5. Natural
Products Library Initiative, The Scripps Research Institute, Jupiter, Florida 33458, United States