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菌紫质分子是嗜盐菌紫膜中分子量为26,000的唯一蛋白质成分,它在天然紫膜中以六角形二维晶格结构排列,并以三个分子为单位组成三聚体。菌紫质分子的功能为光驱动质子泵,在膜两边形成质子梯度,嗜盐菌则可利用此电化学梯度合成ATP。有人把天然紫膜碎片装到人工板膜上,光照后可以测量到光电响应信号。有人认为,若把菌紫质分子的光化学循环、质子泵以及光电响应联系在一起,光化学循环过程中泵出质子,而这质子流就产生光电响应信
Bacteriorhodopsin, the only protein component in the halophilic purple membrane with a molecular weight of 26,000, is arranged in a hexagonal two-dimensional lattice structure in a natural purple membrane and forms trimers in units of three molecules. Bacteriorhodopsin functions as a light-driven proton pump that forms proton gradients on both sides of the membrane, while halophilic bacteria can use this electrochemical gradient to synthesize ATP. Some people put the natural purple membrane fragments installed on the artificial membrane, the light can be measured after the photoelectric response signal. Some people think that if the photochemical cycle of rhodopsin molecules, proton pump and the photoelectric response associated with the photochemical process of pumping proton, and this proton flow will produce a photoelectric response letter