1. Duke University 1 Department of Biology , , Box 90338, Durham, NC 27708 , USA
2. Duke University Medical Center 2 Department of Cell Biology , , Durham, NC 27708 , USA
3. Princeton University 3 Department of Molecular Biology , , Princeton, NJ 08544 , USA
4. Howard Hughes Medical Institute, Princeton University 4 , Princeton, NJ 08544 , USA
5. Stony Brook University 5 Department of Biochemistry and Cell Biology , , Stony Brook, NY 11794 , USA
6. Yale School of Medicine 6 Department of Neuroscience , , New Haven, CT 06510 , USA
7. University of North Carolina at Chapel Hill 7 Department of Biology , , Chapel Hill, NC 27599 , USA
8. University of Virginia 8 Department of Biology , , Charlottesville, VA 29903 , USA
9. University of Virginia School of Medicine 9 Department of Cell Biology , , Charlottesville, VA 29904 , USA