| Literature DB >> 6343803 |
S W Glover, K Firman, G Watson, C Price, S Donaldson.
Abstract
Plasmids R124 and R124/3 carry genes coding for two different R-M systems and normally only one set of genes is expressed. These genes can be translocated to F plasmids that are compatible with the R factors and in strains carrying these F plasmids and an R factor a transacting regulatory mechanism switches off the expression of R-M genes on the introduced plasmid. Additionally the unexpressed genes on the introduced plasmid are expressed. The regulatory mechanism controlling the alternative expression of R124 and R124/3 R-M genes involves a physical rearrangement of DNA sequences.Mesh：
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Year: 1983 PMID： 6343803 DOI： 10.1007/bf00330325
Source DB: PubMed Journal: Mol Gen Genet ISSN： 0026-8925