Evolution of oxygen evolving reaction center-II of thylakoids.
A model for evolution of oxygen evolving reaction center II of higher plant initiating from a chlorophyll--quinone complex is proposed. The reaction center gradually incorporates pheophytin, Fe and Mn to finally achieve oxidation of water to oxygen. The structural and functional pattern during evolution is proposed to descend from higher order of symmetry to lower one.
Raval
M K
MK
Department of Chemistry, G M College, Sambalpur, Orissa.
D005075:Biological Evolution; D002734:Chlorophyll / Q000378:metabolism*; D002736:Chloroplasts / Q000378:metabolism*; D045342:Light-Harvesting Protein Complexes; D008958:Models, Molecular; D010100:Oxygen / Q000378:metabolism*; D045322:Photosynthetic Reaction Center Complex Proteins; D010940:Plant Proteins / Q000378:metabolism*
D045342:Light-Harvesting Protein Complexes; D045322:Photosynthetic Reaction Center Complex Proteins; D010940:Plant Proteins; D002734:Chlorophyll; D010100:Oxygen