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9HE does not bind preferentially to the rRNA promoter. A, shown is a schematic outline of different DNA fragments containing either whole promoter or its regions. B, KD values of 9HE for various DNA fragments were determined from at least three independent experiments. Gray bars, nonspecific DNA fragments; white bars, rDNA-derived DNA fragments. The approximate length of the fragments and S.D. are shown. kb, kilobases.
