Active stable maintenance functions in low copy-number plasmids of Gram-positive bacteria. I. Partition systems

Michał Dmowski, Grażyna Jagura-Burdzy
Pol J Microbiol
2013; 62 (1):
ICID: 1039002
Article type: Review article
IC™ Value: 8.00
Abstract provided by Publisher
 
Low copy number plasmids cannot rely on the random segregation during bacterial cell division. To be stably maintained in the population they evolved two types of mechanisms (i) partition systems (PAR) that actively separate replicated plasmid molecules to the daughter cells and (ii) toxin-andidote systems (TA) that act after cell division to kill plasmid-less cells. Our knowledge of partition systems has been based mainly on analysis of plasmids from Gram-negative bacteria. Now, numerous partition systems of plasmids from Gram-positive bacteria have also been characterized and make significant contribution to our understanding of these mechanisms.
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