1Laboratory of Neuronal Cytoskeleton Protein Regulatory Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA, E-mail: panth@ninds.nih.gov
3Neurobiology Program, Department of Biochemistry, Yong Loo Lin School of Medicine, 11 Medical Drive, Singapore 117597, Singapore, E-mail: panth@ninds.nih.gov