Photosystem II
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BackgroundBackground
Photosystem II, crystallized from the bacteria, Thermosynechococcus elongatus, at 3.50 Å, is representative of the photosynthetic protein found in cyanobacteria and plants. The protein is associated with a variety of ligands. It is mainly composed of and is a symmetrical . Fifteen subunits are in each monomer, with multiple subunits associated with the oxygen evolving complex missing from this crystallization. Photosystem II is a membrane bound protein found in the thylakoid membrane of chloroplasts. Analysis of residues helps to visualize its insertion into the membrane.
PhotosynthesisPhotosynthesis
surround Photosystem II and capture energy from sunlight, exciting electrons. These electrons are first transferred to