对可转化人工染色体(TAC)pYLTAC747NH/sacB文库载体DNA的制备条件进行了较系统的摸索和研究。结果表明,该文库载体经碱裂解法提取、QIAGEN Plasmid Mini kit纯化后,可获得较纯净的载体DNA。对其闭环载体DNA分别用不同酶量的Hind III酶...对可转化人工染色体(TAC)pYLTAC747NH/sacB文库载体DNA的制备条件进行了较系统的摸索和研究。结果表明,该文库载体经碱裂解法提取、QIAGEN Plasmid Mini kit纯化后,可获得较纯净的载体DNA。对其闭环载体DNA分别用不同酶量的Hind III酶切处理,经琼脂糖凝胶电泳检测得出其最佳Hind III完全酶切条件为2 U Hind III/μg闭环载体DNA、37℃酶切30 min;分别用0.5 MBU和1 MBU HK脱磷酶/μg对其线性载体DNA进行脱磷处理,经电泳和载体自连产物电转化检测表明其适宜的完全脱磷条件为1 MBU HK脱磷酶/μg线性载体DNA,30℃脱磷1 h;将所制备的线性载体DNA与λDNA/Hind III酶切片段进行连接,连接产物转化频率较高,其电转化大肠杆菌DH10B感受态细胞频率可达到9.6×108。展开更多
CO2 is not only the most important greenhouse gas but also an important resource of elemental carbon and oxygen.From the perspective of resource and energy strategy,the conversion of CO2 to chemicals driven by renewab...CO2 is not only the most important greenhouse gas but also an important resource of elemental carbon and oxygen.From the perspective of resource and energy strategy,the conversion of CO2 to chemicals driven by renewable energy is of significance,since it can not only reduce carbon emission by the utilization of CO2 as feedstock but also store low-grade renewable energy as high energy density chemical energy.Although studies on photoelectrocatalytic reduction of CO2 using renewable energy are increasing,artificial bioconversion of CO2 as an important novel pathway to synthesize chemicals has attracted more and more attention.By simulating the natural photosynthesis process of plants and microorganisms,the artificial bioconversion of CO2 can efficiently synthesize chemicals via a designed and constructed artificial photosynthesis system.This review focuses on the recent advancements in artificial bioreduction of CO2,including the key techniques,and artificial biosynthesis of compounds with different carbon numbers.On the basis of the aforementioned discussions,we present the prospects for further development of artificial bioconversion of CO2 to chemicals.展开更多
文摘对可转化人工染色体(TAC)pYLTAC747NH/sacB文库载体DNA的制备条件进行了较系统的摸索和研究。结果表明,该文库载体经碱裂解法提取、QIAGEN Plasmid Mini kit纯化后,可获得较纯净的载体DNA。对其闭环载体DNA分别用不同酶量的Hind III酶切处理,经琼脂糖凝胶电泳检测得出其最佳Hind III完全酶切条件为2 U Hind III/μg闭环载体DNA、37℃酶切30 min;分别用0.5 MBU和1 MBU HK脱磷酶/μg对其线性载体DNA进行脱磷处理,经电泳和载体自连产物电转化检测表明其适宜的完全脱磷条件为1 MBU HK脱磷酶/μg线性载体DNA,30℃脱磷1 h;将所制备的线性载体DNA与λDNA/Hind III酶切片段进行连接,连接产物转化频率较高,其电转化大肠杆菌DH10B感受态细胞频率可达到9.6×108。
基金supported by the National Natural Science Foundation of China (91745114, 21802160)the National Key R&D Program of China (2016YFA0202800)+2 种基金Shanghai Sailing Program (18YF1425700)Shanghai Advanced Research Institute Innovation Research Program (Y756812ZZ1(172002),Y756803ZZ1(171003))the support from the Hundred Talents Program of the Chinese Academy of Sciences~~
文摘CO2 is not only the most important greenhouse gas but also an important resource of elemental carbon and oxygen.From the perspective of resource and energy strategy,the conversion of CO2 to chemicals driven by renewable energy is of significance,since it can not only reduce carbon emission by the utilization of CO2 as feedstock but also store low-grade renewable energy as high energy density chemical energy.Although studies on photoelectrocatalytic reduction of CO2 using renewable energy are increasing,artificial bioconversion of CO2 as an important novel pathway to synthesize chemicals has attracted more and more attention.By simulating the natural photosynthesis process of plants and microorganisms,the artificial bioconversion of CO2 can efficiently synthesize chemicals via a designed and constructed artificial photosynthesis system.This review focuses on the recent advancements in artificial bioreduction of CO2,including the key techniques,and artificial biosynthesis of compounds with different carbon numbers.On the basis of the aforementioned discussions,we present the prospects for further development of artificial bioconversion of CO2 to chemicals.
