Oxygen-evolving Activity in Photosystem II Core Complex of Photosynthetic Membrane in the Presence of Native Lipid  

作　　者：阳振乐 王则能 李良璧 匡廷云 

出　　处：《Chinese Journal of Chemistry》2002年第6期576-582,共7页中国化学（英文版）

基　　金：theNationalNaturalScienceFoundationofChina (No .39890 390 ) ;theMajorBasicResearchDevelopmentPro gram (No.G19980 10 10 0 );theInnovativeFoundationofLaboratoryofPhotosynthesisBasicResearch InstituteofBotany ;ChineseAcademyofSciences

摘　　要：The techniques of oxygen electrode polarography and Fourier transform infrared (FT IR) spectroscopy were employed to explore the involvement of digalactosyl diacylglycerol (DGDG) in functional and structural roles in the photosystem II core complex (PSIICC). It was shown that DGDG exhibited the ability to stimulate the oxygen evolution in PSIICC, which was accompanied by the changes in the structures of PSIICC proteins. The results revealed that there existed hydrogen bonding interactions between DGDG molecules and PSIICC proteins. It is most likely that the sites of PSIICC interaction with DGDG are in the extrinsic protein of 33 kDa.The techniques of oxygen electrode polarography and Fourier transform infrared (FT IR) spectroscopy were employed to explore the involvement of digalactosyl diacylglycerol (DGDG) in functional and structural roles in the photosystem II core complex (PSIICC). It was shown that DGDG exhibited the ability to stimulate the oxygen evolution in PSIICC, which was accompanied by the changes in the structures of PSIICC proteins. The results revealed that there existed hydrogen bonding interactions between DGDG molecules and PSIICC proteins. It is most likely that the sites of PSIICC interaction with DGDG are in the extrinsic protein of 33 kDa.

关 键 词：photosystem II core complex digalactosyl diacylglycerol oxygen evolution protein structure 

分 类 号：O644[理学—物理化学]