Thissequencemayhavebeenimportantinthehistoryoflife,becausemolybdenum-containingenzymesthenbecamethemostimportantcatalystsusedbysomebacteriatobreakintoatomstheatmosphericmolecularnitrogen,allowingbiologicalnitrogenfixation.
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This sequence may have been important in the history of life, because molybdenum-containing enzymes then became the most important catalysts used by some bacteria to break into atoms the atmospheric molecular nitrogen, allowing biological nitrogen fixation.