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Stability of 2.9-kb clfA and sarC mRNAs in MB79 (wild type [wt]) and MS17 (hemB). The relative amounts of transcript (RAT) are expressed as percentages of the quantities at the time of rifampin addition. Regression lines (dashed lines) are based on mean values from at least two independent experiments. mRNA half-lives were read at a RAT of 50.
