Photosystem II reconstitution into proteoliposomes and methodologies for structure-function characterization.
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.
Département de chimie biologie (GRBV), Université du Québec à Trois-Rivières, Trois-Rivières, QC, Canada.
David
D
Joly
Sridharan
S
Govindachary
Mário
M
Fragata
D017609:Barium Compounds / Q000737:chemistry; D017666:Deuterium Oxide / Q000737:chemistry; D004566:Electrodes; D004591:Electrophoresis, Polyacrylamide Gel; D005459:Fluorides / Q000737:chemistry; D001467:Hordeum / Q000166:cytology / Q000201:enzymology / Q000254:growth & development; D008081:Liposomes / Q000378:metabolism; D010100:Oxygen / Q000378:metabolism; D045332:Photosystem II Protein Complex / Q000737:chemistry* / Q000302:isolation & purification / Q000378:metabolism*; D011510:Proteolipids / Q000378:metabolism*; D036226:Seedlings / Q000166:cytology / Q000201:enzymology / Q000254:growth & development; D018036:Selenium Compounds / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013329:Structure-Activity Relationship; D020524:Thylakoids / Q000201:enzymology; D017967:Zinc Compounds / Q000737:chemistry
D017609:Barium Compounds; D008081:Liposomes; D045332:Photosystem II Protein Complex; D011510:Proteolipids; D018036:Selenium Compounds; D017967:Zinc Compounds; C020485:proteoliposomes; C055150:barium fluoride; D017666:Deuterium Oxide; C044696:zinc selenide; D005459:Fluorides; D010100:Oxygen