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用非自然氨基酸功能化的温度响应性二块的自组合

Rotem Azulay¹, Daniela S Strugach¹, Miriam Amiram¹

¹Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel.

Protein science : a publication of the Protein Society

|December 26, 2023

概括

将非天然的氨基酸纳入蛋白质聚合物中,可以产生多样化的纳米结构. 这些基于蛋白质的新型组件可以封装药物,显示出先进生物材料的潜力.

科学领域:

生物材料科学生物材料科学
聚合物化学聚合物化学
蛋白质工程是指蛋白质工程.

背景情况:

基于蛋白质的聚合物,如树脂类多 (RLPs) 和弹性类多 (ELPs),对温度有反应.
加入非自然氨基酸 (uaAs) 扩大了蛋白质聚合物的化学多样性和功能.
之前的研究表明,UAA改变了RLP和ELP的特性.

研究的目的:

为了研究芳香UAA对RLP-ELP双块共聚物自组装的影响.
探索模块化阶段过渡行为和由此产生的纳米形态.
评估这些新型蛋白质组件的药物封装能力.

主要方法:

通过单个DNA模板合成RLP-ELP双块共聚合物,并添加了芳香UAA.
通过使用先进的成像技术,特征性自组装成各种纳米结构 (,囊泡).
评估了多克索鲁比辛封装效率及其对uAA身份和纳米结构形态学的依赖.

主要成果:

芳香性UAAs成功地纳入RLP-ELP双块,导致各种自组装形态.
阶段过渡行为和组装成球形/圆柱形和囊泡是通过UAA整合来调节的.
一些结构表现出温度响应的形状变化行为.
药物封装效率因UAA类型和纳米结构形态而异,表明可调节的药物输送潜力.

结论:

通过将uaAs多处结合到温度敏感的两性蛋白质双块共聚合物中,提供了一个多功能平台.
这种方法使自组装纳米结构的精确功能化和调整成为可能,用于诸如药物输送等应用.
该研究强调了UAA修饰蛋白质聚合物的潜力,用于先进生物材料的开发.

关键词:

类似于弹性质的聚类.遗传密码扩张扩张类似于树脂的聚类.自动组装的自动组装机不自然的氨基酸非天然的氨基酸.

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