PHASE BEHAVIOR AND INTERACTIONS OF THE MEMBRANE-PROTEIN BACTERIORHODOPSIN
PHASE BEHAVIOR AND INTERACTIONS OF THE MEMBRANE-PROTEIN BACTERIORHODOPSIN
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膜蛋白细菌视紫红质的相行为和相互作用
DOI：
10.1103/physrevlett.82.3184
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发表时间：
1999
影响因子：
8.6
通讯作者：
C. Safinya
中科院分区：
文献类型：
--
作者：
I. Koltover;J. Raedler;T. Salditt;K. Rothschild;C. Safinya
我们提出了一个同步加速器x射线衍射研究的膜蛋白细菌视紫红质的二维晶体阵列的堆栈熔化。两个不同的制度已被发现作为膜间距离d的函数。在“耦合”制度的d，250 A的温度的熔融转变的温度sTmd随增加d，表明排斥膜相互作用的影响膜内蛋白质的排序。对于D。在250 A时，发现了一个“解耦”区，具有较高的Tpm，与d无关。在T p m以下，随着d的增加，观察到固-液-固重入行为。[S0031-9007（99）08795-5]
We present a synchrotron x-ray diffraction study of melting in stacks of two-dimensional crystalline arrays of the membrane protein bacteriorhodopsin. Two distinct regimes have been found as a function of the intermembrane distance d. In the “coupled” regime for d , 250 A the temperature sTmd of the melting transition decreases with increasing d, demonstrating the effect of the repulsive membrane interactions on the intramembrane protein ordering. For d . 250 A a “decoupled” regime is found with higher T p m independent of d. Below T p m a solid-liquid-solid reentrant behavior is observed as d is increased. [S0031-9007(99)08795-5]