1. Research Collaboratory for Structural Bioinformatics Protein Data Bank, Rutgers, the State University of New Jersey, Piscataway, New Jersey 08854, USA
2. Rutgers Cancer Institute of New Jersey, Rutgers, the State University of New Jersey, New Brunswick, New Jersey 08903, USA
3. Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, California 92037, USA