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工程学Streptomyces coelicolor用于异质表达的类蛋白GE2270A-A警告故事

Francesco Del Carratore^1,2, Erik K R Hanko², Kamila Schmidt^2,3

¹Department of Biochemistry, Cell, and Systems Biology, Institute of Integrative, Systems and Molecular Biology, University of Liverpool, Liverpool L69 3BX, UK.

Journal of industrial microbiology & biotechnology

|July 18, 2025

概括

在Streptomyces coelicolor中GE2270A硫类抗生素的异质表达通过基因集群工程提高了产量. 然而,产量水平仍然低于其他宿主,这凸显了宿主选择的重要性.

科学领域:

微生物学微生物学
生物技术是生物技术.
合成生物学合成生物学

背景情况:

硫化物GE2270A是一种临床意义上的抗生素,是由Planobispora rosea生产的.
对P. rosea的基因操纵具有挑战性,需要异质表达以提高产量.
通过异质表达优化GE2270A的产生对其治疗潜力至关重要.

研究的目的:

通过在Streptomyces coelicolor M1146.6中异质地表达其生物合成基因集群 (BGC) 来增强GE2270A的产生.
调查BGC数据驱动的理性工程对GE2270A产量的影响.
将生产水平与自然生产者和替代宿主进行比较.

主要方法:

在Streptomyces coelicolor M1146.6中GE2270A BGC的异质表达.
BGC的数据驱动理性工程,包括对关键生物合成和调控基因的放大.
多组学数据分析,以了解代谢概况,并确定影响生物合成的因素.

主要成果:

在工程化S. coelicolor菌株中,GE2270A的统计显著提高了产量.
尽管进行了工程工作,但生产水平比自然生产者低12倍,比Nonomuraea ATCC 39727.低50倍.
多基因组数据表明PbtX在GE2270A生物合成中的作用,并揭示了菌株之间的代谢差异.

结论:

虽然像S. coelicolor这样的基因易受宿主对BGC探索有价值,但宿主选择显著影响可实现的产量.
BGC的理性工程可以增加产量,但在优化自然或替代宿主的产量匹配方面仍然存在挑战.
对宿主特异性因素和代谢调节的进一步研究是必要的,以最大限度地提高像GE2270A.A.这样的类蛋白的异质生产.

关键词:

这种菌种是Streptomyces coelicoloror.GE2270A GE2270A 是一个非常好的电池.代谢工程是代谢工程.合成生物学合成生物学这是一种 thiopeptide.

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