Agarose gel electrophoresis of EcoRI-digested plasmid DNAs of bacteriocinogenic strain VRE82 and transconjugants. Lanes: 1, HindIII-digested lambda DNA; 2, E. faecium VRE82 (wild-type VRE strain); 3, nonbacteriocinogenic VRE BM4105RF transconjugant; 4, bacteriocinogenic VRE BM4105RF transconjugant. Arrow, 6.2-kb band.