1. Section of Transcription & Gene Regulation, The Hormel Institute, University of Minnesota , Austin , MN 55912 , USA
2. State Key Laboratory of Virology, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences , Wuhan 430071 , China
3. University of Chinese Academy of Sciences , Beijing 100049 , China
4. Roy J. Carver Department of Biochemistry, Biophysics and Molecular Biology, Iowa State University , Ames , IA 50011 , USA
5. Hubei JiangXia Laboratory , Wuhan 430071 , China