EcoR I restriction digestion profiles of plasmids harboring bla NDM or bla KPC−2 genes from transconjugants containing only one plasmid. (A) Profiles of IncX3 plasmids. (B) Profiles of F35:A-:B1 plasmids. Lanes 1–9: VS2T, VS1T, VX9T, VK70T, VH1T, VK49T, VH3-1T, VH1-2T, and VH11T; Lane M: λ- Hind III marker.