Characterization of the Tyrosine-Z Radical and Its Environment in the Spin-Coupled S2TyrZ•State of Photosystem II fromThermosynechococcus elongatus†

Biochemistry ◽  
2007 ◽  
Vol 46 (11) ◽  
pp. 3138-3150 ◽  
Author(s):  
Sun Un ◽  
Alain Boussac ◽  
Miwa Sugiura
Keyword(s):  
Photosystem Ii ◽  
Tyrosine Z

Characterization of the Interaction between Manganese and Tyrosine Z in Acetate-Inhibited Photosystem II†

Biochemistry ◽  
1998 ◽  
Vol 37 (39) ◽  
pp. 13594-13603 ◽  
Author(s):  
Veronika A. Szalai ◽  
Henriette Kühne ◽  
K. V. Lakshmi ◽  
Gary W. Brudvig
Keyword(s):  
Photosystem Ii ◽  
Tyrosine Z

Characterization of photosystem II with the atomic-force microscope

1992 ◽  
Vol 50 (2) ◽  
pp. 1146-1147
Author(s):  
Kathleen M. Marr ◽  
Mary K. Lyon
Keyword(s):  
Photosystem Ii ◽  
Atomic Force Microscope ◽  
Three Dimensional ◽  
Biologically Active ◽  
Atomic Force ◽  
Freeze Etching ◽  
Image Averaging ◽  
Oxygen Evolving ◽  
Averaging Techniques

Photosystem II (PSII) is different from all other reaction centers in that it splits water to evolve oxygen and hydrogen ions. This unique ability to evolve oxygen is partly due to three oxygen evolving polypeptides (OEPs) associated with the PSII complex. Freeze etching on grana derived insideout membranes revealed that the OEPs contribute to the observed tetrameric nature of the PSIl particle; when the OEPs are removed, a distinct dimer emerges. Thus, the surface of the PSII complex changes dramatically upon removal of these polypeptides. The atomic force microscope (AFM) is ideal for examining surface topography. The instrument provides a topographical view of individual PSII complexes, giving relatively high resolution three-dimensional information without image averaging techniques. In addition, the use of a fluid cell allows a biologically active sample to be maintained under fully hydrated and physiologically buffered conditions. The OEPs associated with PSII may be sequentially removed, thereby changing the surface of the complex by one polypeptide at a time.

Characterization of a resolved oxygen-evolving Photosystem II preparation from spinach thylakoids

1983 ◽  
Vol 724 (2) ◽  
pp. 201-211 ◽  
Author(s):  
Eric Lam ◽  
Barbara Baltimore ◽  
William Ortiz ◽  
Susan Chollar ◽  
Anastasios Melis ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Oxygen Evolving ◽  
Spinach Thylakoids

scholarly journals Cloning of the psbK gene from Synechocystis sp. PCC 6803 and characterization of photosystem II in mutants lacking PSII-K

1991 ◽  
Vol 266 (17) ◽  
pp. 11111-11115
Author(s):  
M. Ikeuchi ◽  
B. Eggers ◽  
G.Z. Shen ◽  
A. Webber ◽  
J.J. Yu ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Synechocystis Sp ◽  
Pcc 6803

Characterization of bonding interactions of the intermediary electron acceptor in the reaction center of Photosystem II by FTIR spectroscopy

1990 ◽  
Vol 1016 (1) ◽  
pp. 49-54 ◽  
Author(s):  
E. Nabedryk ◽  
S. Andrianambinintsoa ◽  
G. Berger ◽  
M. Leonhard ◽  
W. Mäntele ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Ftir Spectroscopy ◽  
Reaction Center ◽  
Electron Acceptor

Characterization of the gene encoding the 10 kDa polypeptide of photosystem II fromArabidopsis thaliana

1991 ◽  
Vol 17 (3) ◽  
pp. 517-522 ◽  
Author(s):  
Gabriel Gil-G�mez ◽  
Pedro F. Marrero ◽  
Diego Haro ◽  
Jos� Ayt� ◽  
Fausto G. Hegardt
Keyword(s):  
Photosystem Ii ◽  
Gene Encoding
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