Restriction–modification (RM) systems are composed of genes that encode a restriction
enzyme and a modification methylase. RM systems sometimes behave as discrete units of …

In the late 1950s, a number of laboratories took up the study of plasmids once the discovery
was made that extrachromosomal antibiotic resistance (R) factors are the responsible …

Broad‐host‐range plasmid RK2 encodes a post‐segregational killing system, parDE, which
contributes to the stable maintenance of this plasmid in Escherichia coli and many distantly …

Broad-host-range (BHR) IncP-1 plasmids have the ability to transfer between and replicate
in nearly all species of the Alpha-, Beta-and Gammaproteobacteria, but surprisingly few data …

Transferable antibiotic resistance in Haemophilus influenzae was first detected in the early
1970s. After this, resistance spread rapidly worldwide and was shown to be transferred by a …

Horizontal transfer of multiresistance plasmids in the environment contributes to the growing
problem of drug-resistant pathogens. Even though the plasmid host cell is the primary …

In prokaryotic genomes, some DNA methyltransferases form a restriction-modification gene
complex, but some others are present by themselves. Dcm gene product, one of these …

Bacterial plasmids deploy a diverse range of regulatory mechanisms to control expression of
the functions they need to survive in the host population. Understanding of the mechanisms …

This study presents the first complete sequence of an IncU plasmid, pFBAOT6. This plasmid
was originally isolated from a strain of Aeromonas caviae from hospital effluent …

Plasmids that carry one of several type II restriction modification gene complexes are known
to show increased stability. The underlying mechanism was proposed to be the lethal attack …