two closely related subgroups of group i pseudomonads , which differ from one another in the overall enzymatic makeup of aromatic amino acid biosynthesis , possess in common the recently characterized major ( tyrosine-sensitive ) and minor ( tryptophan-sensitive ) isozymes of 3-deoxy-d-arabino-heptulosonate 7-phosphate synthase of pseudomonas aeruginosa ( 17 ) .
C0301713
aromatic amino acid
C0041249
tryptophan