1. National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, P.R. China
2. College of Life Sciences, University of Chinese Academy of Sciences, Beijing, P.R. China
3. National Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, P.R. China
4. Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, Worcester, MA, USA