7Tedin K, Witte A, Reisinger G, et al. Evaluation of the E.coli ribosomal rrnB P1 promoter and phage-derived lysis genes for the use in a biological containment system: A concept study. J Biotechnol, 1995, 39: 137-148.
8Schweder T, Hofmann K, Hecker M. Escherichia coli K12 relA strains as safe hosts for expression of recombinant DNA. Appl Microbiol Biotechno, 1995, 42:718-723.
9Steinmetz M, Le Coq D, Aymerich S, et al. The DNA sequence of the gene for the secreted Bacillus subtilis enzyme levansucrase and its genetic control sites. Mol Gen Genet, 1985, 200: 220-228.
10Setlow JK, Randesi M, Adams JG, et al. Mutation and killing of Escherichia coli expressing a cloned Bacillus subtilis gene whose product alters DNA conformation. J Bacteriol, 1992, 174: 2943-2950.
