1. Pierre and Marie Curie University-Paris 6; Research Center of the Institute for Brain and Spinal Cord, National Institute of Health and Medical Research; Paris
2. UF Neurobiology-Neuropathology; Institute of Biology in Health; Angers
3. Laboratory of Enzymology and Structural Biochemistry; National Center for Scientific Research; Gif-sur-Yvette
4. University of Angers, National Center for Scientific Research, National Institute of Health and Medical Research and Neurology Service, National Reference Center for Neurogenetic Diseases, Angers University Hospital Center; Angers; France