From Proteopedia
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Introduction
Leghemoglobin is a protein that is required by Legume plants in order to fix nitrogen by participating in the Nitrogen Fixation pathway. It is found in legumes such as cowpea, soybeans, alfalfa, and other different types of beans. Leghemoglobin functions by keeping the oxygen at a specific low concentration to the bacteroids to allow for respiration, but at the same time, this low concentration keeps the oxygen out of the nitrogen cycle so it doesn’t inhibit the nitrogenase activity [1]
