1. State Key Laboratory of Bioactive Substance & Function of Natural Medicines, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, People’s Republic of China
2. State Key Laboratory of Toxicology & Medical Countermeasures, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, People’s Republic of China
3. Department of Microbiology, College of Life Sciences, Nankai University, Tianjin 300071, People’s Republic of China