Structure of the Escherichia Coli ATP Synthase from Electron Microscopy Studies

Author(s):  
Uwe Lucken ◽  
Edward P. Gogol ◽  
Roderick A. Capaldi
2000 ◽  
Vol 203 (1) ◽  
pp. 29-33 ◽  
Author(s):  
R.A. Capaldi ◽  
B. Schulenberg ◽  
J. Murray ◽  
R. Aggeler

ATP synthase, also called F(1)F(o)-ATPase, catalyzes the synthesis of ATP during oxidative phosphorylation. The enzyme is reversible and is able to use ATP to drive a proton gradient for transport purposes. Our work has focused on the enzyme from Escherichia coli (ECF(1)F(o)). We have used a combination of methods to study this enzyme, including electron microscopy and chemical cross-linking. The utility of these two approaches in particular, and the important insights they give into the structure and mechanism of the ATP synthase, are reviewed.


Author(s):  
G. Stöffler ◽  
R.W. Bald ◽  
J. Dieckhoff ◽  
H. Eckhard ◽  
R. Lührmann ◽  
...  

A central step towards an understanding of the structure and function of the Escherichia coli ribosome, a large multicomponent assembly, is the elucidation of the spatial arrangement of its 54 proteins and its three rRNA molecules. The structural organization of ribosomal components has been investigated by a number of experimental approaches. Specific antibodies directed against each of the 54 ribosomal proteins of Escherichia coli have been performed to examine antibody-subunit complexes by electron microscopy. The position of the bound antibody, specific for a particular protein, can be determined; it indicates the location of the corresponding protein on the ribosomal surface.The three-dimensional distribution of each of the 21 small subunit proteins on the ribosomal surface has been determined by immuno electron microscopy: the 21 proteins have been found exposed with altogether 43 antibody binding sites. Each one of 12 proteins showed antibody binding at remote positions on the subunit surface, indicating highly extended conformations of the proteins concerned within the 30S ribosomal subunit; the remaining proteins are, however, not necessarily globular in shape (Fig. 1).


Author(s):  
Yunxiang Li ◽  
Neydy A. Valdez ◽  
Nelli Mnatsakanyan ◽  
Joachim Weber

1994 ◽  
Vol 269 (1) ◽  
pp. 418-426
Author(s):  
A.L. Hazard ◽  
A.E. Senior

1998 ◽  
Vol 280 (1) ◽  
pp. 103-116 ◽  
Author(s):  
Arun Malhotra ◽  
Pawel Penczek ◽  
Rajendra K Agrawal ◽  
Irene S Gabashvili ◽  
Robert A Grassucci ◽  
...  

2011 ◽  
Vol 193 (8) ◽  
pp. 2046-2052 ◽  
Author(s):  
N. Taniguchi ◽  
T. Suzuki ◽  
M. Berney ◽  
M. Yoshida ◽  
G. M. Cook

Sign in / Sign up

Export Citation Format

Share Document