1fe1

CRYSTAL STRUCTURE PHOTOSYSTEM II

spinqualitylabelsall models 1fe1, resolution 3.80Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1fe1 is a 18 chain structure with sequence from Synechococcus elongatus. The October 2001 RCSB PDB Molecule of the Month feature on Photosystem I by David S. Goodsell is 10.2210/rcsb_pdb/mom_2001_10. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: CD, CLA, FE, HEM, MN, PHO, PLA, TYR NonStd Res: UNK Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum Publication Abstract from PubMed Oxygenic photosynthesis is the principal energy converter on earth. It is driven by photosystems I and II, two large protein-cofactor complexes located in the thylakoid membrane and acting in series. In photosystem II, water is oxidized; this event provides the overall process with the necessary electrons and protons, and the atmosphere with oxygen. To date, structural information on the architecture of the complex has been provided by electron microscopy of intact, active photosystem II at 15-30 A resolution, and by electron crystallography on two-dimensional crystals of D1-D2-CP47 photosystem II fragments without water oxidizing activity at 8 A resolution. Here we describe the X-ray structure of photosystem II on the basis of crystals fully active in water oxidation. The structure shows how protein subunits and cofactors are spatially organized. The larger subunits are assigned and the locations and orientations of the cofactors are defined. We also provide new information on the position, size and shape of the manganese cluster, which catalyzes water oxidation. Crystal structure of photosystem II from Synechococcus elongatus at 3.8 A resolution.,Zouni A, Witt HT, Kern J, Fromme P, Krauss N, Saenger W, Orth P Nature. 2001 Feb 8;409(6821):739-43. PMID:11217865 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Photosystem II

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