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Photosystem II Reconstitution into Proteoliposomes and Methodologies for StructureFunction Characterization

 Last Update: 2020-11-10
 Source: Internet
 Author: User

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lipid rafts function

uses gel electrophoresis

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This chapter discusses the photosystem II (PSII) reconstitution into proteoliposomes. In the first part of the chapter, protocols are outlined for the preparation of lipid bilayer vesicles (liposomes) constituted of individual thylakoid lipids or their mixtures, for the preparation of PSII particles, and for the incorporation of the PSII particles into the liposomes. In the second part of the chapter, methodologies are described for the structure–function characterization of the PSII–lipid complexes (proteoliposomes). This includes the sodium dodecylsulfate-polyacrylamide gel electrophoresis determination of the PSII proteins, the measurement of oxygen-evolving activity of PSII in the proteoliposomes, the study of structural changes of the PSII proteins upon their incorporation into the lipid bilayers by Fourier transform infrared (FT-
IR
) spectroscopy, and the characterization of the PSII activity by fluorescence induction.

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