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  • Title: Structural changes during ATP hydrolysis activity of the ATP synthase from Escherichia coli as revealed by fluorescent probes.
    Author: Turina P.
    Journal: J Bioenerg Biomembr; 2000 Aug; 32(4):373-81. PubMed ID: 11768299.
    Abstract:
    F1F0-ATPase complexes undergo several changes in their tertiary and quaternary structure during their functioning. As a possible way to detect some of these different conformations during their activity, an environment-sensitive fluorescence probe was bound to cysteine residues, introduced by site-directed mutagenesis, in the gamma subunit of the Escherichia coli enzyme. Fluorescence changes and ATP hydrolysis rates were compared under various conditions in F1 and in reconstituted F1F0. The results are discussed in terms of possible modes of operation of the ATP synthases.
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