Organism	Genes	References
Escherichia coli	trpD	[258, 133, 134, 135, 136, 273, 146, 147, 148, 149, 153, 157, 158, 288, 289, 162, 163, 165, 168, 169, 171, 172, 173, 174, 175, 178, 179, 181, 182, 183, 184, 196, 205, 338, 339, 96]
Escherichia coli	trpE	[258, 133, 134, 135, 136, 268, 273, 146, 147, 148, 149, 274, 153, 283, 157, 158, 288, 289, 162, 163, 165, 168, 169, 171, 172, 173, 174, 175, 178, 179, 181, 182, 183, 184, 196, 325, 201, 205, 338, 339, 96, 244, 250]
Saccharomyces cerevisiae	TRP3	[165]
Aspergillus niger	trpC	[165]