title: Comparative analysis of the structure and expression of the &lt;i&gt;vasH&lt;/i&gt; regulatory gene of type VI secretion system in toxigenic and non-toxigenic &lt;i&gt;Vibrio cholerae&lt;/i&gt; strains
abstract: Objective. The comparative analysis of the structure of the regulatory gene vasH of the type VI secretion system and its expression in toxigenic and non-toxigenic V. cholerae O1, biovar El Tor strains.&#x0D; Materials and methods. We used 35 strains isolated from patients and from the environmental samples in the territory of Russia and Ukraine between 1970 and 2017. Analysis of the structure of the vasH gene and the amino acid sequence of the protein was carried out using Ugene 1.32, Mega X, an
journal: Journal of microbiology epidemiology immunobiology