在减少甲醇消耗条件下,使用Ogataea minuta酒精氧化酶缺乏菌株开发蛋白质生产系统
Masashi Tsuda1, Yuki Nakatani1, Baba Satoshi2
1Bioprocess Technology Research Laboratories 1, Daiichi Sankyo Co., Ltd., Chiyoda, Gunma, Japan.
Bioscience, biotechnology, and biochemistry
|November 15, 2024
概括
这项研究描述了甲基转化酵母中用于蛋白质生产的酒精氧化酶1 (AOX1) 促进剂. 研究人员开发了一种减少甲醇使用的方法,提高了异质蛋白质生产的工业可行性.
科学领域:
- 生物技术是生物技术.
- 微生物工程 微生物工程
- 工业微生物学 工业微生物学
背景情况:
- 甲基营养酵母,如Ogataea minuta,是异质蛋白质生产的有价值的主体.
- 酒精氧化酶1 (AOX1) 促进剂很强,可以诱导甲醇,但甲醇存在工业风险.
- 减少对甲醇的依赖对于具有成本效益和安全的工业规模发酵至关重要.
研究的目的:
- 在降低甲醇条件下的AOX1促进剂诱导的特征.
- 在O. minuta.中开发一个更安全,更具工业可行性的蛋白质生产系统.
- 为了比较甲醇诱导和解压条件的AOX1促进剂活性.
主要方法:
- 产生了一种缺少氧化酶醇 (Δaox) 的O. minuta菌株.
- 使用混合料发酵条件在发酵器中.
- 在甲醇诱导和脱压下比较AOX1促进剂活性.
主要成果:
- 在低甲醇条件下,实现了与野生类型菌株相比的异质蛋白质生产.
- 证明了使用 Δaox 菌株用于控制的 AOX1 促进体诱导的可行性.
- 建立了一种适用于工业规模应用的培养工艺,使用减少的甲醇.
结论:
- 开发的系统可以在O. minuta中高效地产生异质蛋白质,并且大大减少了甲醇.
- 这种方法提高了用于生物制造的甲基营养酵母的工业适用性.
- 在各种条件下对AOX1促进体活性进行表征是优化发酵过程的关键.
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