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. Author manuscript; available in PMC: 2009 Jun 20.
Published in final edited form as: J Mol Biol. 2008 Apr 25;379(5):936–952. doi: 10.1016/j.jmb.2008.04.043

Figure 6.

Figure 6

Insertions, deletions, and multiple substitutions were constructed in the FlhD4C2 spacer of the fliAZY promoter. β-galactosidase activities for these mutants were measured and normalized to the activity of the wildtype promoter (100%).