[1] Austrian Acad Sci, CeMM Res Ctr Mol Med, A-1090 Vienna, Austria
[2] Univ Toronto, Struct Genom Consortium, Toronto, ON M5G 1L7, Canada
[3] Univ Toronto, Donnelly Ctr, Toronto, ON M5S 3E1, Canada
[4] Univ Bern, NCCR TransCure, Inst Biochem & Mol Med, CH-3012 Bern, Switzerland
[5] Univ Bern, NCCR TransCure, Swiss Natl Ctr Competence Res, CH-3012 Bern, Switzerland
[6] Univ Toronto, Dept Biochem, Toronto, ON M5S 1A8, Canada
[7] Pfizer Worldwide Res & Dev, Worldwide Med Chem, Cambridge, MA 02139 USA
[8] Med Univ Vienna, Ctr Physiol & Pharmacol, A-1090 Vienna, Austria