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Formerly a general term used to describe enzyme systems that catalyze the reduction of molecular nitrogen to ammonia in nitrogen-fixing bacteria; now specifically applied to enzymes that carry out this reaction with reduced ferredoxin and ATP; typically nitrogenase consists of two components, the first of which reduces N2 whereas the second transfers electrons.
nitrogenase(nī-trŏj′ə-nās′, -nāz′, nī′trə-jə-)
An enzyme of nitrogen-fixing bacteria that catalyzes the conversion of nitrogen to ammonia.
A term for enzyme systems that catalyze the reduction of molecular nitrogen to ammonia in nitrogen-fixing bacteria with reduced ferredoxin and ATP.
nitrogenase(nī′trō-jĕn-ās) [ nitrogen + -ase, enzyme]
An enzyme that catalyzes the reduction of nitrogen to ammonia.