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Regulation of yciC as determined by using a yciC-cat-lacZ transcriptional fusion. Cells were grown overnight in MM containing either no additional metal ions or 5 μM indicated divalent cation, and β-galactosidase (Beta-gal) activity was determined. Expression of the yciC-cat-lacZ fusion is constitutive in the zur mutant strain HB8011 (right).
