Structure of Bovine Mitochondrial F1-ATPase Inhibited by Mg2+Adp and Aluminium Fluoride
Braig, K., Menz, R.I., Montgomery, M.G., Leslie, A.G.W., Walker, J.E.(2000) Structure 8: 567
- PubMed: 10873854 
- DOI: https://doi.org/10.1016/s0969-2126(00)00145-3
- Primary Citation of Related Structures:  
1E1Q, 1E1R - PubMed Abstract: 
The globular domain of the membrane-associated F(1)F(o)-ATP synthase complex can be detached intact as a water-soluble fragment known as F(1)-ATPase. It consists of five different subunits, alpha, beta, gamma, delta and epsilon, assembled with the stoichiometry 3:3:1:1:1. In the crystal structure of bovine F(1)-ATPase determined previously at 2.8 A resolution, the three catalytic beta subunits and the three noncatalytic alpha subunits are arranged alternately around a central alpha-helical coiled coil in the gamma subunit. In the crystals, the catalytic sites have different nucleotide occupancies. One contains the triphosphate form of the nucleotide, the second contains the diphosphate, and the third is unoccupied. Fluoroaluminate complexes have been shown to mimic the transition state in several ATP and GTP hydrolases. In order to understand more about its catalytic mechanism, F(1)-ATPase was inhibited with Mg(2+)ADP and aluminium fluoride and the structure of the inhibited complex was determined by X-ray crystallography.
Organizational Affiliation: 
Institut für Organische Chemie und Biochemie, Albert-Ludwigs Universität Freiburg, Freiburg in Breisgau, D-79104, Germany.