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- W3002004172 abstract "Malaria is a worldwide epidemic that extensively endangers health of human beings. Before artemisinin was developed to treat with malaria, about 400 million person-time of malaria infections and at least 1 million deaths from malaria were reported in the world every year. Thus malaria has been listed as one of the world's three major death diseases by the WHO. The discovery of artemisinin by Chinese scientists created a novel therapy approach to treat with malaria effectively. Amorpha-4,11-diene oxidase is a plant cytochrome P450 enzymes, i.e. CYP71AV1, which catalyzes each of the three oxidation steps from amorpha-4,11-diene to form artemisinic acid, the intermediate of artemisinin. CYP71AV1 is the key enzyme in artemisinin biosynthesis. By constructing the prokaryotic expression vector pCWOri(+)-CYP71AV1, functional expression and purification of complementary CYP71AV1 were performed. The enzyme activity was monitored by CO differential spectrum assay and the heme-based activity analysis. The preliminary crystallization condition was obtained by crystallization screening. These studies provide basis for resolving the crystal structure of CYP71AV1 and for producing artemisinin in large scale through biosynthetic biology approach, and will provide references for over expression, purification and crystallization of other plant P450 enzymes." @default.
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- W3002004172 date "2018-08-01" @default.
- W3002004172 modified "2023-09-23" @default.
- W3002004172 title "[Prokaryotic expression， purification and crystallization of CYP71AV1, key enzyme in artemisinin biosynthesis]." @default.
- W3002004172 doi "https://doi.org/10.19540/j.cnki.cjcmm.20180522.002" @default.
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