1. Department of Life Sciences and Medicine University of Science and Technology of China Hefei 230022 China
2. Tianjin Institute of Industrial Biotechnology Chinese Academy of Sciences 32 West 7th Avenue, Tianjin Airport Economic Area Tianjin 300308 People's Republic of China
3. University of Chinese Academy of Sciences 19A Yuquan Road, Shijingshan District Beijing 100049 People's Republic of China