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RFLP in the Stx2-encoding genomes. Phage DNA was digested with the indicated restriction enzymes and electrophoresed in an agarose gel containing ethidium bromide. In the gel, the order of the digested phage DNA for each restriction enzyme is the same: φ933W, φ10, φ2, φ3, φ14, φ16, and φ19 (from left to right). M, HindIII-digested phage λ DNA and HaeIII-digested φX174 DNA markers.
