The effect of Al3+ on the physical properties of membrane lipids in Thermoplasmaacidophilum
The effect of Al3+ on the physical properties of membrane lipids in Thermoplasmaacidophilum
复制标题
Al3对嗜酸热原体膜脂物理性质的影响
DOI：
10.1016/0006-291x(78)90274-7
复制
发表时间：
1978
影响因子：
3.1
通讯作者：
A. Haug
中科院分区：
文献类型：
--
作者：
R. Vierstra;A. Haug
摘要利用电子顺磁共振波谱技术研究了pH> 2时，Al 3+对嗜酸热浆菌膜脂流动性的影响。Al 3+改变脂质流动性的能力随pH值的增加而增强（从3到5）。在pH 4时，10− 2 M的Al 3+使较低的脂质相变增加了39° C，并且在AlCl 3浓度低至10− 5 M时观察到可检测的变化。Al 3+提高T.嗜酸菌是迄今报道的任何阳离子/脂质相互作用中最大的。
Abstract Using Electron Paramagnetic Resonance Spectroscopy, Al 3+ was shown to produce a dramatic decrease of membrane lipid fluidity on the microorganism Thermoplasma acidophilum at a pH> 2. The ability of Al 3+ to alter lipid fluidity was enhanced with increasing pH (from 3 to 5). At pH 4, 10− 2 M Al 3+ increased the lower lipid phase transition by 39° C, and a detectable change was observed with AlCl 3 concentrations as low as 10− 5 M. The ability of Al 3+ to increase the lower lipid phase transition temperature of T. acidophilum is the largest of any cation/lipid interaction yet reported.