McKinney Jeffrey, Guerrier-Takada Cecilia, Galán Jorge, Altman Sidney
Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06520, USA.
J Bacteriol. 2002 Nov;184(21):6056-9. doi: 10.1128/JB.184.21.6056-6059.2002.
A new Salmonella enterica serovar Typhimurium strain has been constructed to facilitate tightly regulated gene expression. Arabinose-inducible and glucose-repressible expression of a T7 RNA polymerase gene that has been integrated with an adjacent araC-P(BAD) control element into the bacterial chromosome allows dynamic control of T7 promoter-driven RNA transcription.
构建了一种新的肠炎沙门氏菌鼠伤寒血清型菌株,以促进基因表达的严格调控。将一个与相邻的阿拉伯糖操纵子启动子(araC-P(BAD))控制元件整合的T7 RNA聚合酶基因置于阿拉伯糖诱导和葡萄糖抑制的表达调控之下,从而可对T7启动子驱动的RNA转录进行动态控制,该基因已整合到细菌染色体中。