一种生物技术方法,用于生产新的蛋白质生物塑料
Francesca De Marchis1, Tania Vanzolini2, Elisa Maricchiolo2
1Institute of Biosciences and Bioresources, Division of Perugia, National Research Council, Perugia, Italy.
Biotechnology journal
|October 6, 2023
概括
这项研究利用两种基于细胞的策略将常见的豆蛋白 (phaseolin) 改造成生物聚合物. 大肠杆菌产生了优异的产量,证明了创新的生物材料和药物载体应用的潜力.
科学领域:
- 生物技术是生物技术.
- 生物材料科学 生物材料科学
- 蛋白质工程是指蛋白质工程.
背景情况:
- 生物聚合物生产正在转向可持续的基于细胞的生物技术.
- 植物,藻类和细菌为生物聚合物合成提供环保平台.
- 工程蛋白质为先进生物材料开发提供了新的机会.
研究的目的:
- 开发用于从工程常见豆相 (PHSL) 生产生物聚合物的策略.
- 为了比较跨塑性烟草和大肠杆菌中的生物聚合物产量.
- 探索工程生物聚合物作为生物材料和药物载体的潜力.
主要方法:
- 工程法索林 (PHSL) 与氨酸残留物 (PHSL*) 进行二硫化物交叉连接.
- 在跨细胞体烟草甲状腺体和大肠杆菌纳入体中表达PHSL* (ΔPHSL*).
- 氧化 ΔPHSL* 以诱导二硫化物交叉连接和通过醇组进行 PEGylation.
主要成果:
- 超塑性烟草通过链间的二硫化物桥梁产生线性生物聚合物.
- 大肠杆菌在纳入体中产生了ΔPHSL*,形成高分子质量的聚合物.
- 大肠杆菌产生的工程PHSL比烟草多300倍,具有特定地点PEGylation的潜力.
结论:
- 在大肠杆菌中表达的ΔPHSL*是一种有前途的创新生物聚合物.
- ΔPHSL* 的二硫化物交叉连接为生物材料硬化提供了化学交叉连接剂的替代方案.
- 工程蛋白的功能支持其在基于蛋白质的药物输送系统中使用.
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