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调整复杂的协细胞人工细胞中的阴性聚合物功能,以优化酶活性

Alexander B Cook¹, Bruno Delgado Gonzalez², Jan C M van Hest^1,3

¹Bio-Organic Chemistry, Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven 5600 MB, Netherlands.

Biomacromolecules

|December 8, 2023

概括

复杂的协体,模仿细胞结构,表明较低的阴离子电荷密度提高了人造细胞内的蛋白质流动性和酶活性. 这一发现有助于协同研究应用.

科学领域:

生物仿真材料科学生物仿真材料科学
聚合物化学聚合物化学
细胞生物物理学细胞生物物理学

背景情况:

复杂的协生物作为模仿活细胞结构的多功能平台.
细胞和人造系统内的大分子拥挤的凝聚物可以调节酶活性.
电荷相互作用的具体影响,特别是阴离子电荷,对同体内的酶活性仍未得到充分研究.

研究的目的:

研究氨基功能聚合物中氨基类型和电荷密度对同性质的影响.
探索这些聚合物的对协体形成,稳定性,蛋白质分离和酶功能的影响.
了解共聚细胞人工细胞内的不同电荷密度如何影响酶活性和蛋白质的移动性.

主要方法:

通过使用AEAM,DMAEMA,IPMAm和TMAEMA等单体的RAFT聚合合成氨基功能聚合物的合成.
使用合成的多聚和一种阳离子粉酶衍生物,形成膜化复杂的协化人造细胞.
与聚合物电荷密度相关的协体形成,稳定性,蛋白质分割和酶活性的分析.

主要成果:

带有电荷密度降低的聚合物导致协体凝聚体内的蛋白质流动性增加.
研究人员发现,在由电荷密度较低的聚合物形成的同胞体中,酶活性更高.
氨基的类型及其相关的电荷密度显著影响了同体的特征和封装的酶性能.

结论:

凝聚性人造细胞中减少的阴离子电荷密度促进了蛋白质的移动性,并增强了酶的功能.
这些发现为设计特定应用的基于共的人工细胞提供了关键的见解.
这项研究指导着用于感知,催化和治疗配方的协细胞人工细胞的开发.

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