Nitrogenase.

Adenosine Triphosphate/metabolism Amino Acids/analysis Azotobacter/enzymology Bacterial Proteins/metabolism Clostridium/enzymology Electron Spin Resonance Spectroscopy Electron Transport Epitopes Ferredoxins/metabolism Iron/metabolism Kinetics Klebsiella/enzymology Magnesium/metabolism Models, Chemical Molybdenum/metabolism Nitrogen Fixation Nitrogenase/analysis,metabolism Species Specificity Sulfur/metabolism

Amino Acids Bacterial Proteins Epitopes Ferredoxins Sulfur Molybdenum Adenosine Triphosphate Iron Nitrogenase Magnesium