1. *Department of Cell Biology,
2. Graduate Program in Biochemistry, Cell, and Developmental Biology,
3. College of Health and Human Sciences, Georgia State University, Atlanta, GA 30302;
4. Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA 30322;
5. Department of Human Genetics, University of California, Los Angeles, CA 90095; and
6. Cambridge Institute for Medical Research, Cambridge CB2 2XY, United Kingdom
7. **Center for Neurodegenerative Disease, and