A minireplicon containing the rep gene and oriV site of the γ subgroup of the IncP-9 caprolactam pBS267 biodegradation plasmid was cloned for the first time. It was established that a minimized variant of pBS267 plasmid cannot be sustained in E. coli and is inherited in an unstable way in bacteria Pseudomonas. Using in vitro mutagenesis, mutant variants of the minireplicon were produced, characterized by an increased number of copies in cells, the ability to replicate in E. coli, and relatively stable inheritance in P. putida cells. The obtained constructs are the basis for a study of the replication mechanisms of IncP-9 group plasmids, as well as use as vectors for molecular cloning in a wide range of gram-negative bacteria.
Russian Journal of Genetics – Springer Journals
Published: Feb 16, 2013
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