A general protocol for the crystallization of membrane proteins for X-ray structural investigation.

A general protocol for the crystallization of membrane proteins for X-ray structural investigation.
复制标题

DOI:
10.1038/nprot.2009.27
复制
发表时间:
2009
期刊:
影响因子:
14.8
通讯作者:
--
中科院分区:
生物学1区
文献类型:
--
作者:

文献摘要

参考文献

被引文献

相似文献

蛋白质晶体学用于生成蛋白质分子的原子分辨率结构。这些结构提供了蛋白质与底物或效应器(包括DNA、RNA、辅因子或其他小分子、离子和其他蛋白质)的生物学功能、机制和相互作用的信息。该技术可应用于驻留在细胞膜上的膜蛋白。为了实现这一点,膜蛋白首先需要异种表达或从天然来源纯化。蛋白质必须用温和的清洁剂从脂质膜中提取出来,并纯化成稳定、均匀的群体,然后可以结晶。蛋白质晶体然后用于x射线衍射,以产生所需膜蛋白目标的原子分辨率结构。下面,我们提出了衍射质量膜蛋白晶体生长的一般方案。蛋白质结晶的过程是高度可变的,在某些情况下,获得衍射质量的晶体可能需要数周、数月甚至数年。
Protein crystallography is used to generate atomic resolution structures of protein molecules. These structures provide information about biological function, mechanism and interaction of a protein with substrates or effectors including DNA, RNA, cofactors or other small molecules, ions and other proteins. This technique can be applied to membrane proteins resident in the membranes of cells. To accomplish this, membrane proteins first need to be either heterologously expressed or purified from a native source. The protein has to be extracted from the lipid membrane with a mild detergent and purified to a stable, homogeneous population that may then be crystallized. Protein crystals are then used for X-ray diffraction to yield atomic resolution structures of the desired membrane protein target. Below, we present a general protocol for the growth of diffraction quality membrane protein crystals. The process of protein crystallization is highly variable, and obtaining diffraction quality crystals can require weeks to months or even years in some cases.
DOI: 10.1126/science.280.5360.69
发表时间: 1998-04-03
期刊: SCIENCE
影响因子: 56.9
作者:
Doyle, DA;Cabral, JM;MacKinnon, R
通讯作者: MacKinnon, R
DOI: 10.1016/s0167-7799(97)01155-4
发表时间: 1998-02-01
影响因子: 17.3
作者:
Hannig, G;Makrides, SC
通讯作者: Makrides, SC
DOI: 10.1016/s0021-9673(01)90388-7
发表时间: 1985-01-01
期刊: JOURNAL OF CHROMATOGRAPHY
影响因子: --
作者:
HEMDAN, ES;PORATH, J
通讯作者: PORATH, J
DOI: 10.1007/bf02150674
发表时间: 1996-02-01
影响因子: 3
作者:
Garavito, RM;Picot, D;Loll, PJ
通讯作者: Loll, PJ
DOI: 10.1128/jb.177.14.4121-4130.1995
发表时间: 1995-07-01
影响因子: 3.2
作者:
GUZMAN, LM;BELIN, D;BECKWITH, J
通讯作者: BECKWITH, J