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| Content Provider | PubMed Central |
|---|---|
| Author | Su, Ping Tong, Yuru Cheng, Qiqing Hu, Yating Zhang, Meng Yang, Jian Teng, Zhongqiu Gao, Wei Huang, Luqi |
| Copyright Year | 2016 |
| Abstract | Salvia miltiorrhiza Bunge is highly valued in traditional Chinese medicine for its roots and rhizomes. Its bioactive diterpenoid tanshinones have been reported to have many pharmaceutical activities, including antibacterial, anti-inflammatory, and anticancer properties. Previous studies found four different diterpenoid biosynthetic pathways from the universal diterpenoid precursor (E,E,E)-geranylgeranyl diphosphate (GGPP) in S. miltiorrhiza. Here, we describe the functional characterization of ent-copalyl diphosphate synthase (SmCPS ent ), kaurene synthase (SmKS) and kaurene oxidase (SmKO) in the gibberellin (GA) biosynthetic pathway. SmCPS ent catalyzes the cyclization of GGPP to ent-copalyl diphosphate (ent-CPP), which is converted to ent-kaurene by SmKS. Then, SmKO catalyzes the three-step oxidation of ent-kaurene to ent-kaurenoic acid. Our results show that the fused enzyme SmKS-SmCPS ent increases ent-kaurene production by several fold compared with separate expression of SmCPS ent and SmKS in yeast strains. In this study, we clarify the GA biosynthetic pathway from GGPP to ent-kaurenoic acid and provide a foundation for further characterization of the subsequent enzymes involved in this pathway. These insights may allow for better growth and the improved accumulation of bioactive tanshinones in S. miltiorrhiza through the regulation of the expression of these genes during developmental processes. |
| Related Links | http://dx.doi.org/10.1038/srep23057 |
| Starting Page | 23057 |
| File Format | |
| ISSN | 20452322 |
| e-ISSN | 20452322 |
| Journal | Scientific Reports |
| Volume Number | 6 |
| Language | English |
| Publisher | Nature Publishing Group |
| Publisher Date | 2016-03-01 |
| Access Restriction | Open |
| Rights Holder | Nature Publishing Group |
| Subject Keyword | Science and technology Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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