title: How does photosystem 2 split water? The structural basis of efficient energy conversion.
abstract: Photosystem 2 (PS2) is the part of the photosynthetic apparatus that uses light energy to split water releasing oxygen, protons and electrons. Here, we present a model of the subunit organization of PS2 and the accompanying secondary antenna systems (phycobilisomes in cyanobacteria and the light-harvesting complexes in higher plants) and discuss possible physiological consequences of the proposed dimeric structure of PS2.
authors.affiliation: Institute of Botany, University of Münster, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Rögner
authors.forename: E J
authors.initials: EJ
authors.lastname: Boekema
authors.forename: J
authors.initials: J
authors.lastname: Barber
mesh_terms: D005075:Biological Evolution; D002734:Chlorophyll / Q000737:chemistry / Q000378:metabolism; D000458:Cyanobacteria / Q000737:chemistry / Q000378:metabolism; D003573:Cytochrome b Group / Q000378:metabolism; D045346:Cytochrome b6f Complex; D004579:Electron Transport; D045342:Light-Harvesting Protein Complexes; D008954:Models, Biological; D010788:Photosynthesis; D045322:Photosynthetic Reaction Center Complex Proteins / Q000737:chemistry* / Q000378:metabolism*; D045524:Phycobilisomes; D010944:Plants / Q000737:chemistry / Q000378:metabolism; D011485:Protein Binding; D014867:Water / Q000378:metabolism*
chemical_list: D003573:Cytochrome b Group; D045342:Light-Harvesting Protein Complexes; D045322:Photosynthetic Reaction Center Complex Proteins; D045524:Phycobilisomes; D014867:Water; D002734:Chlorophyll; D045346:Cytochrome b6f Complex