[1] Harvard Univ, Dept Chem & Chem Biol, Cambridge, MA 02138 USA
[2] Broad Inst, Ctr Sci Therapeut, Cambridge, MA 02142 USA
[3] Harvard Univ, Dept Mol & Cellular Biol, Cambridge, MA 02138 USA
[4] Massachusetts Gen Hosp, Ctr Computat & Integrat Biol, Boston, MA 02114 USA
[5] Massachusetts Gen Hosp, Ctr Study Inflammatory Bowel Dis, Boston, MA 02114 USA
[6] Broad Inst, Program Med & Populat Genet, Cambridge, MA 02142 USA
[7] Broad Inst, Howard Hughes Med Inst, Cambridge, MA 02142 USA