It may be significant that two conjugal plasmid-borne BREX systems ( 202 , 281 ) are accompanied by a regulatory gene, brxR , that is also widely distributed among other mobile defense clusters.
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It may be significant that two conjugal plasmid-borne BREX systems ( 202 , 281 ) are accompanied by a regulatory gene, brxR , that is also widely distributed among other mobile defense clusters.