分析和工程mollemycin A的生物合成途径,以提高其生产
Shixue Jin1, Huixue Chen1, Jun Zhang2
1School of Pharmacy, Fudan University, Shanghai, 201203, China.
Synthetic and systems biotechnology
|April 12, 2024
概括
抗疟疾化合物莫莱米辛A (MOMA) 的生物合成基因集群已被确定. 通过中介优化,产量增加了44%,使用协同突变菌株进一步增加了2.6倍.
科学领域:
- 发现海洋天然产品的发现.
- 开发抗菌药物 开发抗菌药物
- 合成生物学和代谢工程合成生物学和代谢工程
背景情况:
- 莫莱米辛A (MOMA) 是一种具有强大的抗疟疾活性的海洋衍生型甘氨基-六合--多基基.
- MOMA对药物敏感性和多药耐药性疟疾寄生虫均显示出有效性.
- 化学修改MOMA具有挑战性,野生类型的生产标位较低,阻碍了模拟开发.
研究的目的:
- 为了识别和描述MOMA生物合成基因集群.
- 为了阐明MOMA的复杂生物合成途径.
- 通过媒介优化和基因工程来增强MOMA的生产.
主要方法:
- 在 *Streptomyces* sp. 中的MOMA生物合成基因集群的识别和表征.
- 优化发酵媒介组成,以提高MOMA产量.
- 对 *Streptomyces* 菌株进行基因操作,包括基因删除 (*momB3*) 和过度表达 (*momB2*),以创建一个协同突变.
主要成果:
- 确定了MOMA生物合成基因集群,并提出了其途径.
- 中等优化使MOMA产量增加了44% (0.9到1.3毫克/升).
- 一种协同突变菌株实现了MOMA产量的2.6倍增长 (1.3至3.4毫克/升).
结论:
- 这项研究提供了MOMA生物合成基因集群的第一个特征.
- 这些发现使MOMA生物合成和创建多种类型的类似物的进一步调查成为可能.
- 开发的战略为MOMA及其衍生品的可持续和经济生产提供了途径.
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