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The Photosynthetic Bacterial Reaction Center

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Release : 2013-06-29
Genre : Science
Kind : eBook
Book Rating : 153/5 ( reviews)

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Book Synopsis The Photosynthetic Bacterial Reaction Center by : J. Breton

Download or read book The Photosynthetic Bacterial Reaction Center written by J. Breton. This book was released on 2013-06-29. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the contributions from the speakers at the NATO Advanced Research Workshop on "Structure of the Photosynthetic Bacterial Reaction Center X-ray Crystallography and Optical Spectroscopy with Polarized Light" which was held at the "Maison d'Hotes" of the Centre d'Etudes Nucleaires de Cadarache in the South of France, 20-25 September, 1987. This meeting continued in the spirit of a previous workshop which took place in Feldafing (FRG), March 1985. Photosynthetic reaction centers are intrinsic membrane proteins which, by performing a photoinduced transmembrane charge separation, are responsible for the conversion and storage of solar energy. Since the pioneering work of Reed and Clayton (1968) on the isolation of the reaction center from photosynthetic bacteria, optical spectroscopy with polarized light has been one of the main tools used to investigate the geometrical arrangement of the various chromophores in these systems. The recent elucidation by X-ray crystallography of the structure of several bacterial reaction centers, a breakthrough initiated by Michel and Deisenhofer, has provided us with the atomic coordinates of the pigments and some details about their interactions with neighboring aminoacid residues. This essential step has given a large impetus both to experimentalists and to theoreticians who are now attempting to relate the X-ray structural model to the optical properties of the reaction center and ultimately to its primary biological function.

The Photosynthetic Bacterial Reaction Center: Structure and Dynamics (Nato Asi Series a, Life Sciences, Vol 149)

Download The Photosynthetic Bacterial Reaction Center: Structure and Dynamics (Nato Asi Series a, Life Sciences, Vol 149) PDF Online Free

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Release : 1988-07-01
Genre : Science
Kind : eBook
Book Rating : 170/5 ( reviews)

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Book Synopsis The Photosynthetic Bacterial Reaction Center: Structure and Dynamics (Nato Asi Series a, Life Sciences, Vol 149) by : J. Breton

Download or read book The Photosynthetic Bacterial Reaction Center: Structure and Dynamics (Nato Asi Series a, Life Sciences, Vol 149) written by J. Breton. This book was released on 1988-07-01. Available in PDF, EPUB and Kindle. Book excerpt:

The Photosynthetic Bacterial Reaction Center II

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Release : 2012-12-06
Genre : Science
Kind : eBook
Book Rating : 504/5 ( reviews)

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Book Synopsis The Photosynthetic Bacterial Reaction Center II by : Jacques Breton

Download or read book The Photosynthetic Bacterial Reaction Center II written by Jacques Breton. This book was released on 2012-12-06. Available in PDF, EPUB and Kindle. Book excerpt: The NATO Advanced Research Workshop entitled "The Photosynthetic Bacterial Reaction Center: Structure, Spectroscopy, and Dynamics" was held May 10-15, 1992, in the Maison d'H6tes of the Centre d'Etudes Nuc1eaires de Cadarache near Aix-en-Provence in the south of France. This workshop is the most recent of a string of meetings which started in Feldafing (Germany) in March 1985, soon after the three-dimensional structure of the bacterial reaction center had been elucidated by X-ray crystallography. This was followed, in September 1987, by a workshop in Cadarache and, in March 1990, by a second meeting in Feldafing. Although one of the most important processes on Earth, photosynthesis is still poorly understood. Stimulated by the breakthrough of solving the bacterial reaction center structure at atomic resolution, the field of relating this structure to the function of the reaction center, i. e. the remarkably efficient conversion and storage of solar energy, has been developing vigorously. Once the general organization of the cofactors and some details of the protein-cofactor interactions were known, it became possible to combine a variety of spectroscopic techniques with the powerful tool of site-directed mutagenesis in order to address increasingly incisive questions about the specific role of some amino acid residues in the electron transfer process. Still another promising tool is being developed, namely the exchange of a number of the native bacteriochlorophyll and bacteriopheophytin cofactors by chemically modified pigments.

The Reaction Center of Photosynthetic Bacteria

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Release : 2012-12-06
Genre : Science
Kind : eBook
Book Rating : 575/5 ( reviews)

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Book Synopsis The Reaction Center of Photosynthetic Bacteria by : Maria-Elisabeth Michel-Beyerle

Download or read book The Reaction Center of Photosynthetic Bacteria written by Maria-Elisabeth Michel-Beyerle. This book was released on 2012-12-06. Available in PDF, EPUB and Kindle. Book excerpt: Results of this third Feldafing Meeting can be considered as the harvest of novel techniques in spectroscopy, biochemistry and molecular biology to the bacterial photosynthetic reaction center. New information pertains to the crystallographic and electronic structure as well as to the dynamics of primary events and the role of the protein. The answer to one long-standing problem, the mechanism of primary charge separation, converges towards a sequential scheme, supported by femtosecond spectroscopy on reaction centers with selectively modified energetics.

Reaction Centers of Photosynthetic Bacteria

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Release : 2012-12-06
Genre : Science
Kind : eBook
Book Rating : 970/5 ( reviews)

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Book Synopsis Reaction Centers of Photosynthetic Bacteria by : M.-E. Michel-Beyerle

Download or read book Reaction Centers of Photosynthetic Bacteria written by M.-E. Michel-Beyerle. This book was released on 2012-12-06. Available in PDF, EPUB and Kindle. Book excerpt: Reaction Centers of Photosynthetic Bacteria is an updated record on the most recent insight into the struc- ture/function relationship of reaction centers from photosynthetic bacteria. It addresses in particular, interactions and dynamics which determine the ultra-high quantum yield of photoinduced charge separation in these energy-transforming molecular machines. Of particular interest is the still controversial issue of the primary charge separation mechanism as well as the effects of well-defined modifications, introduced either by mutagenic replacements in the protein matrix or by chemical exchange of reaction center pigments. Also described are the methods used for the characterization of interactions and dynamics important for electron transfer processes in the reaction center.

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