title: The nitrogenase system of Spirillum lipoferum.
abstract: The nitrogenase system of Spirillum lipoferum was separated into three components, the normal Mo-Fe and Fe proteins as well as an activating factor for the Fe protein. The rate of activation is increased by Mn2+ or by an excess of Mg2+, and the process requires ATP.
mesh_terms: D000114:Acetylene; D004789:Enzyme Activation; D008667:Metalloproteins; D009591:Nitrogenase / Q000378:metabolism*; D013139:Spirillum / Q000201:enzymology*
chemical_list: D008667:Metalloproteins; D009591:Nitrogenase; D000114:Acetylene