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As in eukaryotes, bacterial genomes are not randomly folded. Bacterial genetic information is generally carried on a circular chromosome with a single origin of replication from which two replication forks proceed bidirectionally toward the opposite terminus region. Here, we investigate the higher-order architecture of the Escherichia coli genome, showing its partition into two structurally distinct...
pSM19035 is a low-copy-number theta-replicating plasmid, which belongs to the Inc18 family. Plasmids of this family, which show a modular organization, are functional in evolutionarily diverse bacterial species of the Firmicutes Phylum. This review summarizes our understanding, accumulated during the last 20years, on the genetics, biochemistry, cytology and physiology of the five pSM19035 segregation...
The emergence and spread of pathogenic bacteria that have become resistant to multiple antibiotics through lateral gene transfer have created the need of novel antimicrobials. Toxin–antitoxin (TA) modules, which have been implicated in plasmid maintenance and stress management, are ubiquitous among plasmids from vancomycin or methicillin resistant bacteria. In the Streptococcus pyogenes pSM19035-encoded...
In order to evaluate liposomes as vehicle for oral vaccines the characterization and stability of polymerized and non-polymerized liposomes were examined. Mixtures of 1,2-bis(10,12-tricosadiynoyl)-sn-glycero-3 phosphocholine) (DC8,9PC) with saturated 1,2-dimiristoyl-sn-glycero-3-phosphocholine in molar ratio 1:1 were used. Saturated and non-saturated lipids were combined to give a chemically modified...
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