A bioreactor for in-cell protein NMR.

A bioreactor for in-cell protein NMR.
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DOI:
10.1016/j.jmr.2009.10.008
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发表时间:
2010-02
期刊:
Journal of magnetic resonance (San Diego, Calif. : 1997)
影响因子:
--
通讯作者:
Pielak GJ
Pielak GJ
中科院分区:
其他
文献类型:
--
作者:
Sharaf NG;Barnes CO;Charlton LM;Young GB;Pielak GJ

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细胞内部是一个复杂的环境,在体外研究蛋白质和其他分子时很难模拟。我们开发了一种设备和系统,为涉及活细胞的核磁共振(NMR)实验提供受控环境。我们的设备包括两个主要部分,NMR检测区域和循环系统。来自装置底部的培养基流将藻酸盐包封的细胞推入循环室中。在腔室中,氧气和营养物的交换发生在培养基和包封的细胞之间。当介质流停止时,包封的细胞回落到NMR检测区域,并且可以获取光谱。我们利用生物反应器研究了天然无序蛋白α-突触核蛋白在大肠杆菌细胞内的表达。
The inside of the cell is a complex environment that is difficult to simulate when studying proteins and other molecules in vitro. We have developed a device and system that provides a controlled environment for Nuclear Magnetic Resonance (NMR) experiments involving living cells. Our device comprises two main parts, an NMR detection region and a circulation system. The flow of medium from the bottom of the device pushes alginate encapsulated cells into the circulation chamber. In the chamber, the exchange of oxygen and nutrients occurs between the media and the encapsulated cells. When the media flow is stopped, the encapsulated cells fall back into the NMR detection region, and spectra can be acquired. We have utilized the bioreactor to study the expression of the natively disordered protein α-synuclein, inside Escherichia coli cells.
DOI: 10.1021/ja049977k
发表时间: 2004-06-09
影响因子: 15
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