1. Graduate Program in Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China.
2. Tsinghua-Peking Center for Life Sciences, Beijing 100084, China.
3. School of Life Sciences, Tsinghua University, Beijing 100084, China.
4. National Institute of Biological Sciences, No. 7 Science Park Road, Beijing 102206, China.
5. School of Life Science, Nanjing University, Nanjing 210093, China.
6. Department of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
7. Beijing NMR Center, Peking University, Beijing 100871, China.
8. College of Life Sciences, Peking University, Beijing 100871, China.
9. State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China.