通过促进器工程调整蛋白质表达的调整
Taresh P Khobragade1, Pritam Giri1, Hyungdon Yun2
1Department of Systems Biotechnology, Konkuk University, Seoul, South Korea.
Methods in molecular biology (Clifton, N.J.)
|July 27, 2024
概括
对关键酶 (Est PS和TAIC) 的促进剂强度的优化显著提高了西塔利普丁中间体的产量. 这种工程表达系统提高了这一关键制药前体的产量.
科学领域:
- 生物技术是生物技术.
- 酶工程是什么? 酶工程是什么?
- 代谢工程是代谢工程.
背景情况:
- 促使者调节基因转录,和工程他们允许控制的蛋白质表达.
- 西塔格利普丁中间体的合成涉及两个酶:来自Pseudomonas stutzeri (Est PS) 的雌激酶和来自Ilumatobacter coccineus (TAIC) 的转胺酶.
- 优化酶表达水平对于最大限度地生产有价值的化学中间体至关重要.
研究的目的:
- 为了优化Est PS的表达水平,以增强西塔利普丁中间产量.
- 设计一个T7促进器库,用于Est PS.的可定位表达.
- 调查Est PS促进剂强度对TAIC和整体产品收益率的共同表达的影响.
主要方法:
- 在pET15b载体内为Est PS基因构建了一系列具有不同强度的T7促进体.
- 利用共同表达的全细胞来确定表达酶的比例.
- 系统地改变了Est PS的促进剂强度,从100%降至10%.
主要成果:
- 减少Est PS促进剂强度导致Est PS表达水平相应下降.
- 相反,Est PS表达的减少导致TAIC表达水平的增加.
- 与未经优化表达相比,具有优化酶表达的工程系统产生了更高量的西塔利普丁中间体.
结论:
- 微调促进剂强度是优化代谢途径中的酶表达比率的有效策略.
- 开发的促进体工程方法成功地增强了格利普丁中间体的生产.
- 这项研究为提高制药合成生物催化工艺效率提供了一种有价值的方法.
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