Genetic analysis of plasmid determinants for microcin J25 production and immunity
- 1 June 1996
- journal article
- Published by American Society for Microbiology in Journal of Bacteriology
- Vol. 178 (12) , 3661-3663
- https://doi.org/10.1128/jb.178.12.3661-3663.1996
Abstract
Microcin J25 (MccJ25) is a small peptide antibiotic produced by an Escherichia coli strain isolated from human feces. The genetic determinants for MccJ25 synthesis and immunity have been cloned from the low-copy-number wild-type plasmid pTUC1OO into the compatible vectors pBR322 and pACYC184. Physical and phenotypical analysis of insertion mutations and complementation tests defined three contiguous genes involved in MccJ25 production which span a region of about 2.2 kb. Immunity to the antibiotic is provided by an additional gene adjacent to the production region.Keywords
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