1 Key Laboratory for Molecular Enzymology and Engineering, The Ministry of Education, Collage of Life Science, Jilin University, Changchun 130012, PR China.
2 CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, National Center for Nanoscience and Technology of China, Beijing 100190, PR China.
3 Key Laboratory for Molecular Enzymology and Engineering, The Ministry of Education, Collage of Life Science, Jilin University, Changchun 130012, PR China. Electronic address: [email protected].
4 Key Laboratory for Molecular Enzymology and Engineering, The Ministry of Education, Collage of Life Science, Jilin University, Changchun 130012, PR China; National Engineering Laboratory for AIDS Vaccine, Jilin University, Changchun 130012, PR China.