[1] Toronto Gen Hosp, Toronto Gen Res Inst, Ctr Mol Design & Performulat, Toronto, ON M5G 2C4, Canada
[2] Margaret Hosp, Ontario Canc Inst, Div Canc Genom & Proteom, Toronto, ON M5G 2M9, Canada
[3] Univ Toronto, Dept Med Biophys, Toronto, ON M5S 1A8, Canada
[4] Univ Toronto, Dept Biochem, Toronto, ON M5S 1A8, Canada
[5] Univ Toronto, Dept Mol & Med Genet, Toronto, ON M5S 1A8, Canada
[6] Univ Toronto, McLaughlin Ctr Mol Med, Toronto, ON, Canada
[7] Univ N Carolina, Dept Chem & Biochem, Greensboro, NC 27412 USA