Peptidoglycan-Free Bacterial Ghosts Confer Enhanced Protection against Infection.

To develop a modern plague vaccine, we used hypo-endotoxic   bacterial ghosts (BGs) with combinations of genes encoding the bacteriophage ɸX174 lysis-mediating protein E and/or holin-endolysin systems from λ or L-413C phages. Expression of the protein E gene resulted in the BGs that retained the shape of the original bacterium. Co-expression of this gene with genes coding for holin-endolysin system of the phage L-413C caused formation of structures resembling collapsed sacs.

Complete Genome Assembly of Yersinia pestis subsp. bv. Medievalis SCPM-O-B-6530, a Proline-Dependent Strain Isolated from the Central-Caucasian High-Mountain Plague Focus in Kabardino-Balkar Republic (Russia).

We report the complete genome assembly of Yersinia pestis subsp. bv. Medievalis SCPM-O-B-6530, a strain belonging to the most ancient phylogenetic group (group 2.