Cyanobacterial photosystem

Functional reconstitution of thermophilic cyanobacterial photosystem II complex (PS II). Incorporation of PS II into vesicles. 

FIGURE 2.1. Left Three-Dimensional Structure of Cyanobacterial Photosystem I at 2.5 A resolution (reproduced with permission from reference).1 Right crystal structure of the 30S subunit from Thermus thermophilus, refined to 3 A resolution (grey RNA, blue proteins) (reproduced with permission from reference).2... 

IV. BIOPHOTOSENSOR AND BIOPHOTOELECTRODE COMPOSED OF CYANOBACTERIAL PHOTOSYSTEM I AND MOLECULAR... 

In this chapter, we describe three different systems with which to construct electro- and photo-functional molecular assemblies on electrode surfaces. The first is the bottom-up fabrication of redox-conducting metal complex oligomers on an electrode surface and their characteristic redox conduction behavior, distinct from conventional redox polymers.11-13 The second is a photoelectric conversion system using a porphyrin and redoxconducting metal complex.14 The third is the use of a cyanobacterial photosystem I with molecular wires for a biophotosensor and photoelectrode.15 16 These systems will be the precursors of new types of molecular devices working in electrolyte solution. 

A. Biophotosensor Composed of Cyanobacterial Photosystem I, Molecular Wire, Gold Nanoparticle, and Transistor... 

B. Biophotoelectrode Composed of Cyanobacterial Photosystem I and Molecular Wires... 

Jordan P, Fromme P, Witt FIT, Klukas O, Saenger W, Krauss N. Three-dimensional structure of cyanobacterial photosystem I at 2.5 angstrom resolution. Nature 2001 411 909-917. 

Jordan, P., Fromme, P., Witt, H., Klukas, O., Saenger, W., Krauss, N. (2001). Three-dimensional structure of cyanobacterial photosystem 1 at 2.5 A resolution. Nature 411,909-917. 

RM Wynn, J Omaha and R Malkin (1989) Structural and functional properties of the cyanobacterial photosystem I complex. Biochemistry 28 5554-5560... 

Zak, E., Norling, B., Maitra, R., Huang, F., Anderson, B., andPakrasi, H. B. 2001. The initial steps of biogenesis of cyanobacterial photosystems occur in plasma membranes. Proc. Nalt. Acad. Sci. USA. 23,13443-13448. 

Han KC, Shen JR, Ikeuchi M et al. Chemical crosslinking studies of extrinsic proteins in cyanobacterial photosystem II. FEBS Lett 1994 355 121-124. 

Clarke AK, Soitamo A, Gustafsson P et al. Rapid interchange between two distinct forms of cyanobacterial photosystem II reaction center protein D1 in response to photoinhibidon. Proc Nad Acad Sci USA 1993 90 9973-9977. 

FLUORESCENCE LIFETIME STUDIES OF CYANOBACTERIAL PHOTOSYSTEM II MUTANTS... 

Fluorescence Lifetime Studies of Cyanobacterial Photosystem II Mutants 667... 

Cytochrome C550 is part of the cyanobacterial photosystem II (PSII) and has an unusually low reduction potential. Attempts have been made to unravel the major parameters determining this value by working with isolated protein from Synechocystis. Both EPR and other spectroscopic measurements of the isolated cytochrome and of PSII fragments showed that the heme group is not very different from that of other cytochromes c in both samples. However, electrochemical experiments led the authors to propose that the degree of solvent... 

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