Mostafa H I, Váró G, Tóth-Boconádi R, Dér A, Keszthelyi L
Institute of Biophysics, Hungarian Academy of Science, Szeged, Hungary.
Biophys J. 1996 Jan;70(1):468-72. doi: 10.1016/S0006-3495(96)79590-5.
Electrooptical measurements on purple membrane containing the wild-type and 10 different bacteriorhodopsin mutants have shown that the direction of the permanent electric dipole moment of all these membranes reverses at different pH values in the range 3.2-6.4. The induced dipole moment and the retinal angle exhibit an increased value at these pHs. The results demonstrate that the bacteriorhodopsin protein makes an important contribution to the electrooptical properties of the purple membrane.
对含有野生型及10种不同细菌视紫红质突变体的紫膜进行的电光测量表明，所有这些膜的永久电偶极矩方向在3.2 - 6.4范围内的不同pH值下会发生反转。在这些pH值下，感应偶极矩和视黄醛角呈现出增大的值。结果表明，细菌视紫红质蛋白对紫膜的电光性质有重要贡献。
