相关实验视频

Updated: Jul 2, 2026

Expression of Recombinant Proteins in the Methylotrophic Yeast Pichia pastoris

Expression of Recombinant Proteins in the Methylotrophic Yeast Pichia pastoris

Published on: February 25, 2010

在Pichia pastoris中使用多种策略,高效地表达和分泌人类酶

Yasen Wang¹, Buqing Wang¹, Yahui Gao²

¹Key Laboratory of Carbohydrate Chemistry and Biotechnology, School of Biotechnology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu, China.

Biotechnology journal

|July 20, 2023

概括

这项研究使用多种策略增强了Pichia pastoris中的人类酶 (hLYZ) 生产. 优化发酵实现了hLYZ活性显著增加,为其工业应用提供了具有成本效益的方法.

科学领域:

生物技术是生物技术.
蛋白质工程是指蛋白质工程.
微生物发酵微生物发酵

背景情况:

人类酶 (hLYZ) 是一种有价值的抗菌剂,在食品和药品中具有广泛的应用.
有限的自然资源阻碍了工业规模的hLYZ生产.

研究的目的:

开发一种高效且具有成本效益的方法,用于在Pichia pastoris.中表达和分泌人类酶 (hLYZ).
为工业应用显著提高重组hLYZ的产量和活性.

主要方法:

使用Pichia pastoris作为用于重组蛋白质生产的宿主.
应用了多种策略,包括G418硫酸盐选,信号序列优化,VPS10中断,以及陪伴者/转录因子的共同表达.
优化发酵介质 (RDMY) 和大规模生产的条件.

主要成果:

在震动瓶中达到81,600±5230U/mL的最大细胞外hLYZ活性,比原始菌株增加了五倍.
在使用RDMY介质的5L发酵器中进一步优化生产,达到352,000±16,696.5U/mL的最高hLYZ活性.
显示了酶活性和生产产量的显著改善.

结论:

在Pichia pastoris.中开发了一种高效和具有成本效益的方法,用于在Pichia pastoris.中生产人类酶 (hLYZ).
已建立的方法可以广泛应用于生产其他重组蛋白质.
这项研究解决了为工业需求采购hLYZ的局限性.

关键词:

这就是Pichia pastoris.陪伴者是指一个陪伴者.人类溶解酶人类溶解酶转录因子是一种转录因子.真空分类受体的真空分类受体

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