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侧链化学规范电荷的层次顺序-互补β片合组装

Renjie Liu¹, Xin Dong², Dillon T Seroski¹

¹J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL-32611, USA.

Angewandte Chemie (International ed. in English)

|November 6, 2023

概括

设计可以自组装成功能性材料. 在CATCH类对中充电的侧链化学控制着分层组合到微球或凝中,使功能材料的发展成为可能.

科学领域:

生物材料科学生物材料科学
类化学类化学
超分子化学超分子化学

背景情况:

大自然利用蛋白质自我组装来制造功能性材料,但在环境条件下设计类似的组件具有挑战性.
了解序列和电荷如何影响自我组装对于创造新型生物材料至关重要.

研究的目的:

研究充电侧链化学对CATCH类对的等级组合的影响.
在生理条件下从设计中探索有序结构 (微球,凝) 的形成.
为了证明将功能纳入自我组装的结构的潜力.

主要方法:

使用了一个带电补充的β片形成的家族 (CATCH(X+/Y-)) 与不同的带电氨基酸.
在生理学pH值和水溶液中的离子强度下研究了联合组装.
使用各种分析技术,描述了自我组装的形态学和动力学.
纳入绿色光蛋白融合以评估功能整合.

主要成果:

CATCH ((6K+/6D-) 对以度依赖的方式形成了富含β片的微球和凝,具有微米尺度的板状形态.
对充电残留物 (D到E,K到R) 和终端氨基酸的修改破坏了层次秩序,并增加了纤维的扭曲或联合组装动力学.
活跃的CATCH ((6K+) -绿色光蛋白融合成功地被纳入自组装结构中,表明了功能潜力.

结论:

带电侧链化学显著决定了CATCH的分层联合组装成有序结构.
特定的序列和电荷模式对于实现所需的形态学,如微球和凝至关重要.
将功能性蛋白质纳入这些自我组装的材料的能力为开发先进生物材料开辟了道路.

关键词:

纳米纤维纳米纤维是一种这是一种类.自动组装自动组装超分子生物材料超分子生物材料

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