1. Zhongnan Hospital, Wuhan University, 169 Donghu Road, Wuhan 430071, China
2. Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, 185 Donghu Road, Wuhan 430071, China
3. Department of Biological Engineering, Massachusetts Institute of Technology, 77 Masschusetts Avenue, Cambridge, Massachusetts, USA