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Effect of metronidazole on PFOR protein levels. Cell extracts from H. pylori strain Hp1134R grown in the presence (+ MTZ) or absence (− MTZ) of 18 μg/ml MTZ were subjected to SDS-PAGE and immunoblotting with antibodies prepared against the PorA subunit (A) and Hsp70 (B). MW, molecular weight (in thousands).
