1. Institute of Neuroscience and Key Laboratory of Neurobiology, Shanghai Institutes for Biological SciencesChinese Academy of Sciences, Shanghai 200031, Peoples's Republic of China
2. Division of Neurobiology, Department of Molecular and Cell Biology, University of CaliforniaBerkeley, CA 94720-3200, USA
3. State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of SciencesBeijing 100101, Peoples's Republic of China