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氨酸对蛋白质界面行为的影响

Peyman Dastyar¹, Harsa Mitra¹, Caitlin V Wood²

¹School of Mechanical Engineering, Purdue University, 585 Purdue Mall, West Lafayette, 47907, IN, United States of America.

Journal of colloid and interface science

|January 28, 2026

概括

氨酸减弱了流体-流体界面上的蛋白质-蛋白质相互作用,减少了聚合. 这种氨基酸是氨基酸.

科学领域:

生物化学生物化学
物理化学物理化学
制药科学制药科学

背景情况:

流体-流体界面上的蛋白质吸附会导致形状变化和聚合.
众所周知,氨酸可以减少蛋白质与蛋白质的相互作用和配方粘度.
氨酸的表面活性特性表明,它有可能缓解界面聚合.

研究的目的:

调查L-氨酸可以限制流体-流体界面上的蛋白质聚合的假设.
描述带有和没有L-氨酸的治疗蛋白质的界面类型.
评估L-氨酸对蛋白质界面行为和稳定性的影响.

主要方法:

对Etanercept (Enbrel),免疫球蛋白G1 (IgG1) 和牛血清白蛋白 (BSA) 的界面类风湿学测量 (线性和非线性疗法).
在各种蛋白质度中,测试了含有和不含L-氨酸化物的配方.
进行了z-电位测量,以将静电特性与风湿学结果相关联.

主要成果:

氨酸一般削弱了蛋白质与蛋白质之间的相互作用,其影响因蛋白质类型和度而异.
恩布雷尔和BSA显示,与氨酸的界面粘弹性变化很小,特别是在较低度和老化过程中.
在氨酸的存在下,IgG1在界面行为中表现出更明显的度依赖差异.

结论:

氨酸可以减弱流体-流体界面上的蛋白质-蛋白质相互作用,从而减少聚合.
氨酸在稳定蛋白质配方中的有效性取决于特定的蛋白质及其度.
这些发现支持生物制药配方的合理设计,其中包括氨基酸以提高稳定性.

关键词:

聚合是一种聚合.氨基酸是氨基酸中的一种.阿尔吉尼因 (Arginine) 是一种素.聚变蛋白质的融合蛋白质是如何形成的接口类风湿学接口类风湿学蛋白质吸附是一种蛋白质吸附.蛋白质与蛋白质的相互作用

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