PMID:8951087
| Citation |
Futai, M and Omote, H (1996) Conformational transmission in ATP synthase during catalysis: search for large structural changes. J. Bioenerg. Biomembr. 28:409-14 |
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| Abstract |
Escherichia coli ATP synthase has eight subunits and functions through transmission of conformational changes between subunits. Defective mutation at beta Gly-149 was suppressed by the second mutations at the outer surface of the beta subunit, indicating that the defect by the first mutation was suppressed by the second mutation through long range conformation transmission. Extensive mutant/pseudorevertant studies revealed that beta/alpha and beta/gamma subunits interactions are important for the energy coupling between catalysis and H+ translocation. In addition, long range interaction between amino and carboxyl terminal regions of the gamma subunit has a critical role(s) for energy coupling. These results suggest that the dynamic conformation change and its transmission are essential for ATP synthase. |
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| Keywords |
Catalysis; Escherichia coli/enzymology; Escherichia coli/genetics; Mutagenesis; Protein Conformation; Proton-Translocating ATPases/chemistry; Proton-Translocating ATPases/genetics; Proton-Translocating ATPases/metabolism; Structure-Activity Relationship |
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