Sandbox Reserved 760: Difference between revisions
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== '''INTRODUCTION''' == | == '''INTRODUCTION''' == | ||
What comes to the mind when one thinks about nitrogenase is the nitrogen cycle in which nitrogen is converted from its naturally occurring form to ammonia. Biological nitrogen fixation, the reduction of atmospheric N2 to NH3 by nitrogen fixing organism, is a key step in the nitrogen | What comes to the mind when one thinks about nitrogenase is the nitrogen cycle in which nitrogen is converted from its naturally occurring form to ammonia. Biological nitrogen fixation, the reduction of atmospheric N2 to NH3 by nitrogen fixing organism, is a key step in the nitrogen fixation pathway. Nitrogenase is an enzyme (protein) that fixes nitrogen (N2) from the atmosphere into ammonia (NH3). This enzyme is only found in prokaryotic organisms such as certain bacteria and blue-green algae in which some are free living (Cyanobacteria) or symbiotic (Rhizobia) in nature. | ||
Nitrogenase catalyzes the following reaction: N2 + 8H+ + 16MgATP + 8e− → 2 NH3 + H2 + 16MgADP + 16Pi. | Nitrogenase catalyzes the following reaction: N2 + 8H+ + 16MgATP + 8e− → 2 NH3 + H2 + 16MgADP + 16Pi. | ||
