Electron transport to nitrogenase in Klebsiella pneumoniae: purification and properties of the nifJ protein.


In Klebsiella pneumoniae, the physiological electron flow to nitrogenase involves specifically, in addition to nitrogenase reductase, the products of the nifF and nifJ genes. The J protein was purified to homogeneity and was found to be an iron-sulfur protein devoid of molybdenum. In its native state, the J protein is a dimer of Mr about 245 000, made up of… (More)


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