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Undigested plasmid profiles (A) and EcoRI restriction profiles (B) of SHV-4-encoding plasmids. (A) Undigested plasmid profiles from Kp7 (lane 1), Kp04 (lane 2), Kp92 (lane 3), and Kp93 (lane 4). (B) Profile C-1 from Kp7 and Kp04 (lanes 1 and 2, respectively) and profile C-2 from transconjugants of Kp92 and Kp93 (lanes 3 and 4, respectively). M, size ladder (DNA of λ phage digested by PstI).
