Crystal structure of photosystem II from Synechococcus elongatus at 3.8 angstroms resolution

Article Abstract:

Research is presented concerning the use of electron crystallography and electron microscopy to determine the crystal structure of a large protein-cofactor complex, photosystem II, in Synechococcus elongatus.

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Three-dimensional structure of cyanobacterial photosystem I at 2.5 A resolution

Article Abstract:

It has been possible to determine the X-ray crystal structure of photosystem I from the thermophilic cyanobacterium Synechococcus elongatus. The protein subunit PsaX was resolved into the structure and found to be an intrinsic element of the photosystem.

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Towards complete cofactor arrangement in the 3.0 A resolution structure of photosystem II

Article Abstract:

The most complete cyanobacterial photosystem II structure showing locations of and interactions between 20 protein subunits and 77 cofactors per monomer is described. A lopophilic pathway for the diffusion of secondary plastoquinone that transfers redox equivalents from photosystem II to the photosynthetic chain is proposed, which uncovers near-atomic details necessary to understand the process that convert light to chemical energy.

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