Thermodynamic analyses of the catalytic pathway of F1-ATPase from Escherichia coli. Implications regarding the nature of energy coupling by F1-ATPases.

Abstract excerpt

Thermodynamic properties of 12 different F1-ATPase enzymes were analyzed in order to gain insights into the catalytic mechanism and the nature of energy coupling to delta mu H+. The enzymes were normal soluble Escherichia coli F1, a group of nine beta-subunit mutant soluble E. coli F1 enzymes (G142S, K155Q, K155E, E181Q, E192Q, M209I, D242N, D242V, R246C), and both soluble and membrane-bound bovine heart...

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