1. Institut de Pharmacologie Moléculaire et Cellulaire Centre National de la Recherche Scientifique Unité Mixte de Recherche 6097 and Université de Nice-Sophia Antipolis (M.D., G.A.R., M.A., J.D.M., V.V., P.B., E.L.), 06560 Valbonne, France;
2. Department of Molecular and Integrative Physiology (T.K., L.L.H.), University of Kansas Medical Center, Kansas City, Kansas 66160;
3. Department of Oncology (L.R.C.), Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, D.C. 20007;
4. Department of Biochemistry (G.P.Z.), St. Jude Children’s Research Hospital, Memphis, Tennessee 38105;
5. Instituto de Pesquisa Pelé Pequeno Principe and Centro de Genética Molecular e Pesquisa do Câncer em Criançcas (B.C.F.), 80.050-110 Curitiba, Paraná, Brazil