The photosynthetic reaction centre from the purple bacterium Rhodopseudomonas viridis

1989 ◽  
Vol 9 (4) ◽  
pp. 383-419 ◽  
Author(s):  
Johann Deisenhofer ◽  
Harmut Michel

We first describe the history and methods of membrane protein crystallization, and show how the structure of the photosynthetic reaction centre from the purple bacterium Rhodopseudomonas viridis was solved. The structure of this membrane protein complex is correlated with its function as a light-driven electron pump across the photosynthetic membrane. Finally we draw conclusions on the structure of the photosystem II reaction centre from plants and discuss the aspects of membrane protein structure.

2004 ◽  
Vol 24 (4-5) ◽  
pp. 323-361 ◽  
Author(s):  
Johann Deisenhofer ◽  
Harmut Michel

We first describe the history and methods of membrane protein crystallization, and show how the structure of the photosynthetic reaction centre from the purple bacterium Rhodopseudomonas viridis was solved. The structure of this membrane protein complex is correlated with its function as a light-driven electron pump across the photosynthetic membrane. Finally we draw conclusions on the structure of the photosystem II reaction centre from plants and discuss the aspects of membrane protein structure.


2009 ◽  
Vol 66 (1) ◽  
pp. 44-50 ◽  
Author(s):  
Mads Gabrielsen ◽  
Lisa A. Nagy ◽  
Lawrence J. DeLucas ◽  
Richard J. Cogdell

The second virial coefficient, orBvalue, is a measurement of how well a protein interacts with itself in solution. These interactions can lead to protein crystallization or precipitation, depending on their strength, with a narrow range ofBvalues (the `crystallization slot') being known to promote crystallization. A convenient method of determining theBvalue is by self-interaction chromatography. This paper describes how the light-harvesting complex 1–reaction centre core complex fromAllochromatium vinosumyielded single straight-edged crystals after iterative cycles of self-interaction chromatography and crystallization. This process allowed the rapid screening of small molecules and detergents as crystallization additives. Here, a description is given of how self-interaction chromatography has been utilized to improve the crystallization conditions of a membrane protein.


1987 ◽  
Vol 6 (8) ◽  
pp. 2197-2202 ◽  
Author(s):  
K. A. Weyer ◽  
F. Lottspeich ◽  
H. Gruenberg ◽  
F. Lang ◽  
D. Oesterhelt ◽  
...  

1987 ◽  
Vol 42 (6) ◽  
pp. 751-754 ◽  
Author(s):  
I. Sinning ◽  
H. Michel

Several mutants resistant to terbutryn (2-thiom ethyl-4-ethylamino-6-t-butylamino-s-triazine) from the purple bacterium Rhodopseudom onas viridis have been isolated. The sequence analysis of that part of the DNA coding for the herbicide binding site in the photosynthetic reaction centre showed that only two genetically different mutant strains were obtained. The sequence data are discussed with respect to recent crystallographic results.


1990 ◽  
Vol 1018 (2-3) ◽  
pp. 115-118 ◽  
Author(s):  
Hartmut Michel ◽  
Irmgard Sinning ◽  
Juergen Koepke ◽  
Gunther Ewald ◽  
Günter Fritzsch

Author(s):  
H. Engelhardt ◽  
R. Guckenberger ◽  
W. Baumeister

Bacterial photosynthetic membranes contain, apart from lipids and electron transport components, reaction centre (RC) and light harvesting (LH) polypeptides as the main components. The RC-LH complexes in Rhodopseudomonas viridis membranes are known since quite seme time to form a hexagonal lattice structure in vivo; hence this membrane attracted the particular attention of electron microscopists. Contrary to previous claims in the literature we found, however, that 2-D periodically organized photosynthetic membranes are not a unique feature of Rhodopseudomonas viridis. At least five bacterial species, all bacteriophyll b - containing, possess membranes with the RC-LH complexes regularly arrayed. All these membranes appear to have a similar lattice structure and fine-morphology. The lattice spacings of the Ectothiorhodospira haloohloris, Ectothiorhodospira abdelmalekii and Rhodopseudomonas viridis membranes are close to 13 nm, those of Thiocapsa pfennigii and Rhodopseudomonas sulfoviridis are slightly smaller (∼12.5 nm).


2014 ◽  
Vol 127 (3) ◽  
pp. 1041-1045 ◽  
Author(s):  
Livia Salvati Manni ◽  
Alexandru Zabara ◽  
Yazmin M. Osornio ◽  
Jendrik Schöppe ◽  
Alexander Batyuk ◽  
...  

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