1. MOE International Joint Research Laboratory on Synthetic Biology and Medicines, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, P. R. China
2. Center for Micro-Engineered Materials, Department of Chemical and Biological Engineering, The University of New Mexico, Albuquerque, New Mexico 87131, United States
3. Department of Internal Medicine, Molecular Medicine, The University of New Mexico, Albuquerque, New Mexico 87131, United States