7Terasawa M, Fukushima M, Kurusu Y, et al. L-tryptophan production by the application of high expressed tryptophanase in E.coli[J]. Process Biochem, 1990, 25(5): 172 - 175.
8Yanofsky C, Platt T, Crawford IP, et al. The complete nucleotide sequence of the tryptophan operon of Escherichia coli[J].Nucleic Acids Res, 1981, 9 (24): 6647 - 6668.
9Berry A. Improving production of aromatic compounds in Escherichia coli by metabolic engineering[J]. Trends Biotechnol, 1996, 14(7): 250 - 256.
10Patnaik R, Liao JC. Engineering of Escherichia central metabolism for aromatic metabolite production with near theoretical yield[J]. Appl Envion Microbiol, 1994, 60(11): 3903 - 3908.
