在克拉米多马那斯 (Chlamydomonas reinhardtii) 中复合三重拉特罗斯波鲁林的表达和表征
Bin Xue1,2, Yang-Yang Li3, Bei-Feng-Chu Zheng3
1College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310032, Zhejiang, China.
Probiotics and antimicrobial proteins
|March 25, 2025
概括
拉特罗斯波林 (LS) 是一种广泛的抗微生物,在克拉米多莫纳斯 (Chlamydomonas reinhardtii) 中成功产生. 这种工程在各种条件下保持其抗菌活性,并显示出作为安全抗菌剂的潜力.
科学领域:
- 微生物学 微生物学
- 生物技术是生物技术.
- 生物化学 生物化学
背景情况:
- 抗微生物 (AMP) 对于对抗细菌感染至关重要.
- 来自Brevibacillus sp.的细菌素Laterosporulin (LS) 具有广泛的活性,但其生产水平较低.
- 有限的LS表达阻碍了其治疗和食品保存应用.
研究的目的:
- 开发一种增强生产拉特罗斯波林 (LS) 的方法.
- 评估工程 LS 的抗菌疗效和稳定性.
- 评估工程 LS 对于潜在应用的安全概况.
主要方法:
- 设计了一个三重 (3×LS) 与C端标签 (HA和6×His).
- 在Chlamydomonas reinhardtii中实现了3×LS-HA-6×His的异质表达.
- 净化并描述表达的的抗菌活性,稳定性和安全性.
主要成果:
- 在 Chlamydomonas reinhardtii 中成功表达和净化了3×LS-HA-6×His.
- 改造后的LS表现出广泛的抗菌活性,对抗阳性和阴性细菌.
- 该在广泛的温度和pH值范围内表现出稳定性,对蛋白酶的耐药性,以及非血溶性/非细胞毒性.
结论:
- 克拉米多莫纳斯 (Chlamydomonas reinhardtii) 是一个可行的宿主,可以生产生物活性和生物安全的拉特罗斯波鲁林.
- 工程化LS显示出作为替代抗微生物战略的巨大潜力.
- 这项研究为LS的大规模生产和应用提供了基础.
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