1. Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand
2. Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
3. Research Center of Nano Science and Technology, Shanghai University, No. 99, Shangda Road, P.O. Box 111, Baoshan district, Shanghai 200444, People’s Republic of China
4. Program in Bioinformatics and Computational Biology, Graduated School, Chulalongkorn University, Bangkok 10330, Thailand
5. Center of Excellence in Structural and Computational Biology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand