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Effect of promoter mutations on parCp-lacZ or parEp-lacZ expression
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Underlining indicates either residues conserved in the −10 and −35 consensus sequence or changes made toward consensus. Italics indicate changes away from consensus. Periods indicate bases that were not changed in the mutant promoters. Boxes around sequences in the spacer region indicate the 8-mer sequences. Sequence elements subjected to mutagenesis are in boldface type. N = any base; S = G/C; W = A/T.
