Lin Z, Mallavia L P
Department of Microbiology, Washington State University, Pullman, Washington 99164-4233, USA.
J Bacteriol. 1999 Mar;181(6):1947-52. doi: 10.1128/JB.181.6.1947-1952.1999.
The partition region qsopAB of the Coxiella burnetii plasmid QpH1 was analyzed. Locus qsopA alone appears to fulfill the partitioning function; QsopA represses its own promoter 17-fold. Two partition-associated incompatibility sites were identified: incA in a 200-bp region covering the qsopA promoter and incB in the qsopB locus.
对贝氏柯克斯体质粒QpH1的分区区域qsopAB进行了分析。单独的基因座qsopA似乎就能实现分区功能;QsopA可将其自身启动子抑制17倍。鉴定出了两个与分区相关的不相容位点:位于覆盖qsopA启动子的200碱基对区域内的incA和位于qsopB基因座内的incB。