使用固定金属亲和染色学 (IMAC) 净化聚胺标记蛋白质
Sinéad T Loughran1, Ronan T Bree2, Dermot Walls3
1Department of Life and Health Sciences, School of Health and Science, Dundalk Institute of Technology, Dundalk, Louth, Ireland. sinead.loughran@dkit.ie.
Methods in molecular biology (Clifton, N.J.)
|August 30, 2023
概括
使用聚胺标签 (His标签) 和固定金属亲和色谱 (IMAC) 净化重组蛋白质. 这种方法在原生或变质条件下有效地从大肠杆菌中分离出高度净化的His标记蛋白质.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 蛋白质净化 蛋白质净化
背景情况:
- 聚胺标记 (His-tagging) 是用于重组蛋白净化的一种广泛采用的技术.
- 他的标签通过固定金属亲和力色谱 (IMAC) 促进蛋白质的分离.
研究的目的:
- 描述从大肠杆菌中净化His标记蛋白质的高效程序.
- 详细说明IMAC的应用,使用绑定-洗-解脱策略.
主要方法:
- 工程重组DNA添加His标签到目标蛋白质.
- 使用固定金属亲和色谱 (IMAC) 进行蛋白质净化.
- 实施对HIS标记蛋白质的绑定-冲洗-逃离策略.
主要成果:
- 成功分离了高度净化的His标记的标蛋白.
- 演示有效的净化程序.
- 该方法适用于原生条件和变质条件的适应性.
结论:
- 他的标记与IMAC相结合,为重组蛋白净化提供了一种多功能和高效的方法.
- 描述的程序允许从大肠杆菌中高纯度地分离His标记蛋白质.
- 该协议在原生条件和变质条件下都有效,提高了其适用性.
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