Key Laboratory of RNA Biology, Institute of Biophysics and University of the Chinese Academy of Sciences, Beijing, China.|Core Facility for Protein Research and the Key Laboratory of RNA Biology, Institute of Biophysics Chinese Academy of Sciences, Beijing, China.|Key Laboratory of RNA Biology, Institute of Biophysics and University of the Chinese Academy of Sciences, Beijing, China.|Key Laboratory of RNA Biology, Institute of Biophysics and University of the Chinese Academy of Sciences, Beijing, China.|Key Laboratory of RNA Biology, Institute of Biophysics Chinese Academy of Sciences, Beijing, China.|Core Facility for Protein Research and the Key Laboratory of RNA Biology, Institute of Biophysics Chinese Academy of Sciences, Beijing, China.|Key Laboratory of RNA Biology, Institute of Biophysics Chinese Academy of Sciences, Beijing, China.|Key Laboratory of RNA Biology, Institute of Biophysics Chinese Academy of Sciences, Beijing, China.|Key Laboratory of RNA Biology, Institute of Biophysics Chinese Academy of Sciences, Beijing, China.|Key Laboratory of the Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.|Key Laboratory of RNA Biology, Institute of Biophysics and University of the Chinese Academy of Sciences, Beijing, China.|Key Laboratory of RNA Biology, Institute of Biophysics and University of the Chinese Academy of Sciences, Beijing, China.