FIG. 2.
norA primer extension analysis. SH1000, parent strain; SA-K2124, SH1000 norA::lacZ; SA-K2161, SH1000 norA::lacZ flqB (T→A); SA-K2173, inverted repeat mutant of SA-K2124; SA-K2242, TTAATT consensus sequence mutant of SA-K2124.
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