1. Departments of Chemistry and
Molecular and Experimental Medicine and the Skaggs Institute for Chemical
Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United
States
2. Instituto de Bioquímica
Médica, Programa de Biologia Estrutural, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-590,
Brazil