Stable RK2-derived cloning vectors for the analysis of gene expression and gene function in gram-negative bacteria

被引:107
作者
Dombrecht, B [1 ]
Vanderleyden, J [1 ]
Michiels, J [1 ]
机构
[1] Katholieke Univ Leuven, FA Janssens Lab Genet, B-3001 Heverlee, Belgium
关键词
Azospirillum brasilense Sp245; post-segregational killing; pTR102; Rhizobium etli CNPAF512; y4dLM; y4mFE;
D O I
10.1094/MPMI.2001.14.3.426
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The construction of several stable RK2-derived cloning vectors for the analysis of gene expression and function in gram-negative bacteria is reported. Plasmid stability is Conferred by the RK2 par locus or by insertion of the spsAB or spsCD symbiotic plasmid stability loci from pNGR234a of Rhizobium sp. NGR234. The vectors carry multiple cloning sites with protection against read-through transcriptional activity of vector sequences. Vector derivatives with the constitutive nptII promoter or a promoter-less gusA gene are suitable for the study of gene function or regulation in bacteria.
引用
收藏
页码:426 / 430
页数:5
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