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The regulatory C-terminal domain of subunit ? of F?F? ATP synthase is dispensable for growth and survival of Escherichia coli.

ABSTRACT: The C-terminal domain of subunit ? of the bacterial F?F? ATP synthase is reported to be an intrinsic inhibitor of ATP synthesis/hydrolysis activity in vitro, preventing wasteful hydrolysis of ATP under low-energy conditions. Mutants defective in this regulatory domain exhibited no significant difference in growth rate, molar growth yield, membrane potential, or intracellular ATP concentration under a wide range of growth conditions and stressors compared to wild-type cells, suggesting this inhibitory domain is dispensable for growth and survival of Escherichia coli.

SUBMITTER: Taniguchi N 

PROVIDER: S-EPMC3133022 | biostudies-literature | 2011 Apr

REPOSITORIES: biostudies-literature

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The regulatory C-terminal domain of subunit ε of F₀F₁ ATP synthase is dispensable for growth and survival of Escherichia coli.

Taniguchi Naohiro N   Suzuki Toshiharu T   Berney Michael M   Yoshida Masasuke M   Cook Gregory M GM  

Journal of bacteriology 20110218 8

The C-terminal domain of subunit ε of the bacterial F₀F₁ ATP synthase is reported to be an intrinsic inhibitor of ATP synthesis/hydrolysis activity in vitro, preventing wasteful hydrolysis of ATP under low-energy conditions. Mutants defective in this regulatory domain exhibited no significant difference in growth rate, molar growth yield, membrane potential, or intracellular ATP concentration under a wide range of growth conditions and stressors compared to wild-type cells, suggesting this inhib  ...[more]

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