1. Gordon Life Science Institute, San Diego, California 92130, Tianjin Institute of Bioinformatics and Drug Discovery (TIBDD), Tianjin, China, Bioinformatics Research Centre, Donghua University, Shanghai 200050, China, Shanghai Research Centre of Biotechnology, Chinese Academy of Sciences, Shanghai, China, and Biomolecular Sciences Department, University of Manchester Institute of Science & Technology, P.O. Box 88, Manchester, M60 1QD, U.K.