1. Janssen Pharmaceutica NV, Janssen Pharmaceutical Companies of Johnson & Johnson, Turnhoutseweg 30, 2340 Beerse, Belgium
2. Department of Biochemistry and Cell Biology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire 03755, United States
3. Department of Molecular Biosciences, The University of Texas at Austin, Austin, Texas 78712, United States