the regulatory properties of three key enzymes in the phenylalanine biosynthetic pathway , 3-deoxy-d-arabino-heptulosonate 7-phosphate synthetase ( dahp synthetase ) [ ec 4.1.2.15 ] , chorismate mutase [ ec 5.4.99.5 ] , and prephenate dehydratase [ prephenate hydro-lyase ( decarboxylating ) , ec 4.2.1.51 ] were compared in three phenylalanine-excreting mutants and the wild strain of brevibacterium flavum .
C0008514
chorismate mutase
C0033068
prephenate hydro-lyase