. . "an enzyme of nitrogen-fixing microorganisms that catalyzes the conversion of nitrogen to ammonia"@en-us . "114963762"^^ . "0.25"^^ . . . "14963762-n"^^ . "nitrogenase"^^ . . . "nitrogenase"@en-us . . . "0"^^ . "114113010"@en-us . . "an enzyme of nitrogen-fixing microorganisms that catalyzes the conversion of nitrogen to ammonia"@en-us . . . .