Hilton M D, Alaeddinoglu N G, Demain A L
Department of Applied Biological Sciences, Massachusetts Institute of Technology, Cambridge 02139.
J Bacteriol. 1988 Jan;170(1):482-4. doi: 10.1128/jb.170.1.482-484.1988.
Previously characterized mutants of Bacillus subtilis 168 were analyzed for the accumulation of the antibiotic bacilysin in culture broths and for the presence of bacilysin synthetase in cell extracts. All aro mutants tested were deficient in bacilysin biosynthesis but had synthetase activity. Mutants with lesions in tyrA and pheA produced normal levels of bacilysin, suggesting that prephenate is the primary metabolic precursor of bacilysin.
对先前已鉴定的枯草芽孢杆菌168突变体进行了分析,检测其在培养液中抗生素杆菌溶素的积累情况以及细胞提取物中杆菌溶素合成酶的存在情况。所有测试的aro突变体在杆菌溶素生物合成方面均有缺陷,但具有合成酶活性。tyrA和pheA有损伤的突变体产生正常水平的杆菌溶素,这表明预苯酸是杆菌溶素的主要代谢前体。