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设计ADDobody蛋白质支架,用于生成高度的ADDomer超级结合剂

Dora Buzas¹, Huan Sun¹, Christine Toelzer²

¹School of Biochemistry, University of Bristol, University Walk, Bristol BS8 1TD, UK; Max Planck Bristol Centre for Minimal Biology, Cantock's Close, Bristol BS8 1TS, UK.

Structure (London, England : 1993)

|January 10, 2024

概括

从腺病毒纳米颗粒中获得的工程ADDobodies提供了热稳定,高产量的蛋白质结合剂. 这些可以形成多价值纳米颗粒,具有用于先进的治疗应用的皮科莫尔性.

科学领域:

生物技术是生物技术.
纳米技术纳米技术
结构生物学结构生物学

背景情况:

腺病毒衍生纳米粒子 (ADDomers) 是热稳定的,简化了治疗药物的冷链要求.
基蛋白 (PBP) 是ADDomers的核心组成部分.
扩展ADDomer应用需要模块化蛋白质组件.

研究的目的:

从ADDomers中制造出新的模块化蛋白质组件.
开发一个平台来选择使用这些组件的高亲和度结合剂.
为了创建多价值纳米粒子与增强的目标狂热度.

主要方法:

基因工程将PBP冠和多元化领域分开,创建ADDobodies.
在大肠杆菌中单体ADDobodies的表达.
核糖体显示器用于选择特定的结合剂.
选择的ADDobodies与PBP域的再组合,形成奇美拉纳米粒子.
用于结构验证的X射线晶体学和冷电子显微镜.

主要成果:

在高产量表达的工程单体,热稳定的ADDobodies.
使用核糖体显示器成功选择具有高丰富因子的特定结合剂.
通过将ADDobodies与PBP域重新组装而创建了奇美拉纳米粒子.
通过冷EM证实了奇梅拉结构及其60个结合点.
实现了超高的,对目标的皮科莫尔贪.

结论:

ADDobodies为粘合剂选择提供了一个多功能,热稳定的平台.
奇美拉纳米粒子表现出显著增强的目标结合力.
这个平台可以开发基于ADDomer的先进纳米疗法.

关键词:

AD AD 很好的人在ADDomer纳米粒子超级粘合剂中.蛋白质工程是一种蛋白质工程.替代性脚手架是一种替代性的脚手架.核糖体显示选择选择的选择

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