1 Laboratory of Receptor Structure and Signaling, The HIT Center for Life Sciences, Harbin Institute of Technology, Harbin, China.
2 Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan.
3 State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute of Chinese Academy of Agricultural Sciences, Harbin, China.
4 The HIT cryo-EM facility, Harbin Institute of Technology, Harbin, China.
5 HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, China.
6 Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan. iaska@tohoku.ac.jp.
7 Laboratory of Receptor Structure and Signaling, The HIT Center for Life Sciences, Harbin Institute of Technology, Harbin, China. ajian.he@hit.edu.cn.