Using Magnets and Flexible 3D-Printed Structures to Illustrate Protein (Un)folding

Using Magnets and Flexible 3D-Printed Structures to Illustrate Protein (Un)folding
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使用磁铁和灵活的 3D 打印结构来说明蛋白质(解)折叠

DOI:
10.1021/acs.jchemed.2c00231
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发表时间:
2022
影响因子:
3
通讯作者:
Saitis, Florin
Saitis, Florin
中科院分区:
化学2区
文献类型:
--
作者:
Popa, Ionel;Saitis, Florin

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蛋白质是我们体内的“神奇”工人,因为它们完成了大部分细胞功能。在这里,我们报告了一种新的方法来教授蛋白质折叠和展开,使用磁铁和灵活的3D打印蛋白质结构。为了说明这个物理过程,我们使用了为白板设计的彩色圆形磁铁,通过回形针连接。然后使用标准和柔性材料3D打印了几种蛋白质结构。然后通过将开槽砝码添加到由三个实验组成的设置中来研究蛋白质在力作用下的展开:一个简单的弹簧,一个与密封注射器串联的弹簧(代表缓冲器),以及一个与打印的蛋白质结构串联的弹簧。这里展示的所有实验都是由威斯康星州─密尔沃基大学组织的。这里提出的方法补充了使用其他技术来了解蛋白质折叠,并构成了一种新的方式来解释如何机械unfoldingin vivorelates到一个增益的功能。
Proteins are “magical” workers inside our body, as they accomplish most of the cellular functions. Here we report on a novel approach to teach protein folding and unfolding, using magnets and flexible 3D-printed protein structures. To illustrate this physical process, we used colored circular magnets designed for whiteboards, connected through paper clips. Several protein structures were then 3D-printed, using both standard and flexible materials. Protein unfolding under force was then investigated by adding slotted weights to a setup consisting of three experiments: a simple spring, a spring in series with a sealed syringe (representing a dashpot), and a spring in series with a printed protein structure. All of the experiments shown here were done as part of the event, organized by the University of Wisconsin─Milwaukee. The approach presented here complements the use of other techniques to learn about protein folding and constitutes a novel way to explain how mechanical unfoldingin vivorelates to a gain-of-function.
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