1. Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
2. Key Laboratory of Protein and Peptide Pharmaceuticals, CAS Center for Excellence in Biomacromolecules, Chinese Academy of Sciences-University of Tokyo Joint Laboratory of Structural Virology and Immunology, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
3. Department of Immunobiology and Yale Cancer Center, Yale University School of Medicine, New Haven, CT, USA
4. College of Life Science and Bioengineering, Beijing Jiaotong University, Beijing, China