使用合理的代谢工程策略优化了康卡纳米辛的生产
Filipa Pereira1, Morgan McCauley1, Katherine Lev1
1Life Sciences Institute, University of Michigan, Ann Arbor, MI, 48109, USA.
Metabolic engineering
|November 24, 2024
概括
通过优化调节基因和发酵,工程化Streptomyces菌株显著提高了用于药物开发的康卡纳胺素生产. 这克服了低产量,使得进一步研究这些强大的 plecomacrolide 抑制剂成为可能.
科学领域:
- 生物技术是生物技术.
- 微生物工程 微生物工程
- 自然产品的合成自然产品的合成
背景情况:
- 普莱科马克罗利德,像康卡纳米辛一样,抑制真空类型的ATPase,并显示出治疗的前景.
- 目前的康卡纳米辛生产依赖于微生物发酵,但产量有限.
- 低度阻碍了药物开发和结构-活性关系研究.
研究的目的:
- 开发工程化Streptomyces菌株,以增强康卡纳米辛AC的生产.
- 为了克服用于药物开发的康卡纳米辛产量的瓶.
- 建立一个平台,对康卡纳胺素类似物进行强有力的过度生产.
主要方法:
- 通过过度表达调节基因 (内源性和异源性) 改造的Streptomyces菌株.
- 优化的发酵介质组成.
- 在各种Streptomyces物种中测试了异质基因过度表达.
主要成果:
- 工程化S. eitanensis取得了创纪录的标位: >900 mg/L的康卡纳米辛A和300 mg/L的康卡纳米辛B.
- 调节基因的过度表达增加了在测试的菌株中康卡纳素A的产生.
- 确认了康卡纳米辛生物合成基因集群的身份.
结论:
- 菌株工程和发酵优化使康卡纳胺氨酸模拟产品的生产得以稳定.
- 便于获得复杂的 plecomacrolides 用于药物化学.
- 建立了一个多功能平台,用于过度生产康卡纳胺类似物.
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