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优化了NEDD8蛋白质表达,柱上重新折叠和净化策略

Shalu Yadav¹, Neeraj Kumar Fauzdar¹, Yashwant Kumar Yadav¹

¹Department of Biotechnology, School of Life Sciences, Central University of Rajasthan, NH-8, Bandar Sindri, Dist. Ajmer-305817, Kishangarh, Rajasthan, India.

Protein and peptide letters

|January 27, 2026

概括

一种新的在柱上重新折叠的方法改善了神经前体细胞表达,发育下调8 (NEDD8) 的净化. 这种技术提高了产量和重新折叠效率,与传统的尿基策略相比,对于这种关键的泛胺类修饰剂来说.

科学领域:

生物化学生物化学
分子生物学分子生物学
蛋白质化学蛋白质化学

背景情况:

乌比基及其家族蛋白质具有高度溶解性,并且能够很好地进行重组表达.
神经前体细胞表达,发育向下调节8 (NEDD8),一种类似于ubiquitin的修饰剂,与ubiquitin具有结构和功能上的相似性.
NEDD8对于细胞循环调节,胚胎发育和DNA修复至关重要,但重组表达通常会导致不溶性纳入体,阻碍净化.

研究的目的:

开发一种高效和高产的方法来净化复合神经前体细胞表达,发育下调8 (NEDD8).
为了克服与传统净化策略相关的挑战,这些净化策略产生少量的功能性蛋白质.

主要方法:

使用6xHis标签,采用了简化在列上重新折叠的策略.
亲和色谱被用于最初的捕获和重新折叠.
进行了尺寸排除色谱,以随后净化重新折叠的蛋白质.

主要成果:

在列上的重新折叠方法显著提高了神经前体细胞表达,发育向下调节8 (NEDD8) 净化的产量和效率.
通过核磁共振 (NMR) 和循环二重化 (CD) 光谱学证实了净化NEDD8的结构完整性和正确折叠.
这种方法消除了透析相关的损失,产生生物相关的,折叠良好的蛋白质.

结论:

开发的在柱上重新折叠的方法提供了一个优越的替代传统的尿素为基础的策略神经前体细胞表达,发育下调8 (NEDD8) 净化.
该方法产生了适当折叠和功能蛋白质,通过生物物理技术验证.
虽然对于小蛋白质有效,但这种在柱上重新折叠技术的更广泛适用性可能需要具体情况的优化.

关键词:

电磁盘光谱学CD光谱学 DNA受损. 发生DNA损伤.在NEDD8中,它是NEDD8.核磁共振光谱法 (NMR) 是一种光谱法.乌比奎丁是一种存在的药物.重复折叠重新折叠的情况

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