高度好塩菌の紫膜 : 光エネルギー変換膜

概要

論文の詳細を見る
Extremely halophilic bacteria, halobacteria produce purple membrane in the plasma membrane. On absorption of light purple membrane pumps protons from the cell, resulting in the production of proton gradient across the membrane and membrane potential, so purple membrane is one of energy converters of light. The purple membrane contains only one species of protein called bacteriorhodopsin because this protein possesses retinal as the chromohpore like a visual pigment rhodopsin. The bacteriorhodopsin plays a role as a photoelectrogenic tip in the purple membrane.<BR>In this article the structures of purple membrane and bacteriorhodopsin were introduced and the energy conversion mechanism in the bacteriorhodopsin was discussed. Especially researches on bacteriorhodopsin with retinal analogs and by chemical modification were commented.
日本膜学会の論文