. "Does not contain a metal center or organic cofactor." . "Fission of two C-C bonds: 2,4-dioxygenolytic cleavage with concomitant release of carbon monoxide." . "The enzyme from Pseudomonas putida is highly specific for this substrate." . . . "3-hydroxy-4-oxo-1,4-dihydroquinoline 2,4-dioxygenase" . "3-hydroxy-4-oxoquinoline 2,4-dioxygenase" . "(1H)-3-hydroxy-4-oxoquinoline 2,4-dioxygenase" . "3-hydroxy-4(1H)-one, 2,4-dioxygenase" . "Quinoline-3,4-diol 2,4-dioxygenase" . . . "3-hydroxy-1H-quinolin-4-one + O(2) = N-formylanthranilate + CO." .