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  • Journal article

  • CryoEM Structures of the Nitrogenase Complex During Catalytic Turnover

    • Authors : Rutledge, Hannah L. (2023)

  • The enzyme nitrogenase couples adenosine triphosphate (ATP) hydrolysis to the multi-electron reduction of atmospheric dinitrogen into ammonia. Despite extensive research, the mechanistic details of ATP-dependent energy transduction and dinitrogen reduction by nitrogenase are not well understood, requiring new strategies to monitor its structural dynamics during catalytic action. Here we report the cryogenic electron microscopic interrogation of the nitrogenase complex under enzymatic ...
  • Journal article

  • Cryo-EM structures of Na+-pumping NADH-ubiquinone oxidoreductase from Vibrio cholerae

    • Authors : Kishikawa, Jun-ichi (2023)

  • The Na+-pumping NADH-ubiquinone oxidoreductase (Na+-NQR) couples electron transfer 3 from NADH to ubiquinone with Na+-pumping, generating an electrochemical Na+ gradient that 4 is essential for energy-consuming reactions in bacteria. Since Na+-NQR is exclusively found in 5 prokaryotes, it is a promising target for highly selective antibiotics. However, the molecular 6 mechanism of inhibition is not well-understood for lack of the atomic structural informa...