1 National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.
2 College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
3 National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China. zhengli@ibp.ac.cn.
4 National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China. xutao@ibp.ac.cn.
5 College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China. xutao@ibp.ac.cn.