1. State Key Laboratory of Bioactive Substance and Function of Natural Medicines CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs NHC Key Laboratory of Biosynthesis of Natural Products Institute of Materia Medica Chinese Academy of Medical Sciences and Peking Union Medical College 1 Xian Nong Tan Street Beijing 100050 People's Republic of China
2. Institute of Medicinal Biotechnology Chinese Academy of Medical Sciences and Peking Union Medical College 1 Tian Tan Xi Li Beijing 100050 People's Republic of China