1. Institut de Química Computacional i Catàlisi and Departament de Química Universitat de Girona C/M. Aurèlia Capmany, 69 17003 Girona Spain
2. Division of Chemistry and Chemical Engineering California Institute of Technology 1200 E California Blvd. Pasadena CA 91125 USA
3. National Institute of Biological Sciences Beijing 102206 China
4. Innovative Genomics Institute University of California Berkeley CA USA