Acknowledgements
We thank members of Pilong Li’s lab for helpful discussions and kindly
provision of plasmids. We also thank Dr. Peng Li for his team and lab
training and members of iGEM Tsinghua team (2018) for their guidance in
brainstorming. This work was supported by Tsinghua University Initiative
Scientific Research Program, Tsinghua Xuetang Program, and Student
Research Training Program. This research was also financially supported
by grants from the Ministry of Science and Technology of China (Grant
No. 2018YFA0900200), National Natural Science Foundation of China (Grant
No. 31961133019; No. 21761132013; No. 31870859), and Center of Life
Sciences of Tsinghua-Peking University.