glucosamine- or n-acetylglucosamine-requiring mutants of staphylococcus aureus 209p and escherichia coli k12 , which lack glucosamine-6-phosphate synthetase [ 2-amino-2-deoxy-d-glucose-6-phosphate ketol-isomerase ( amino-transferring ) ; ec 5.3.1.19 ] , were isolated .
C0017718
glucosamine
C0001056
n-acetylglucosamine