1. State Key Laboratory of Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, School of Life Sciences, Peking University , Beijing 100871, China
2. Department of Structural Molecular Biology, Max Planck Institute of Biochemistry , Am Klopferspitz 18, 82152 Martinsried, Germany
3. Department of Cellular Biochemistry, Max Planck Institute of Biochemistry , Am Klopferspitz 18, 82152 Martinsried, Germany
4. CryoEM Technology, Max Planck Institute of Biochemistry , Am Klopferspitz 18, 82152 Martinsried, Germany
5. Changping Laboratory , Beijing, China