| Autor: |
Weishan, Wang, Shanshan, Li, Zilong, Li, Jingyu, Zhang, Keqiang, Fan, Gaoyi, Tan, Guomin, Ai, Sin Man, Lam, Guanghou, Shui, Zhiheng, Yang, Hongzhong, Lu, Pinjiao, Jin, Yihong, Li, Xiangyin, Chen, Xuekui, Xia, Xueting, Liu, H Kathleen, Dannelly, Chen, Yang, Yi, Yang, Siliang, Zhang, Gil, Alterovitz, Wensheng, Xiang, Lixin, Zhang |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
Nature biotechnology. 38(1) |
| ISSN: |
1546-1696 |
| Popis: |
Pharmaceutically important polyketides such as avermectin are mainly produced as secondary metabolites during the stationary phase of growth of Streptomyces species in fermenters. The source of intracellular metabolites that are funneled into polyketide biosynthesis has proven elusive. We applied multi-omics to reveal that intracellular triacylglycerols (TAGs), which accumulates in primary metabolism, are degraded during stationary phase. This process could channel carbon flux from both intracellular TAGs and extracellular substrates into polyketide biosynthesis. We devised a strategy named 'dynamic degradation of TAG' (ddTAG) to mobilize the TAG pool and increase polyketide biosynthesis. Using ddTAG we increased the titers of actinorhodin, jadomycin B, oxytetracycline and avermectin B |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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