1. Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, People’s Republic of China
2. Division of Pharmaceutical Sciences, University of Wisconsin—Madison, Madison, Wisconsin 53705, United States
3. Hunan Engineering Research Center of Combinatorial Biosynthesis and Natural Product Drug Discovery, Changsha, Hunan 410329, People’s Republic of China
4. Institute of Biochemistry I/ZAFES, Faculty of Medicine, Goethe-University Frankfurt, 60590 Frankfurt, Germany