1. Department of Biophysics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
2. Department of Pathology and Cell Biology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA.
3. Center for Alzheimer’s and Neurodegenerative Diseases, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
4. Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
5. Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.