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. 2009 Mar 4;9:48. doi: 10.1186/1471-2180-9-48

Figure 3.

Figure 3

EMSA experiments on M. smegmatis and M. tuberculosis pr1 promoter with M. smegmatis IdeR (A) and Zur (B) proteins. (A) Migration of different DNA fragments representing the upstream region of the following genes: mmpS5-mmpL5 (unrelated fragment) (lanes 1–2), rv0282 (lanes 3–4), msmeg0615 (lanes 5–6), in the absence (-) and in the presence (+) of M. smegmatis IdeR. (B) EMSA experiments on the promoter region of M. tuberculosis rv0282 (lanes 1–4) and msmeg0615 (lanes 5–8) with M. smegmatis Zur. Lanes 1 and 5, negative control (without protein); lanes 2 and 6 no metal; lanes 3 and 7 200 μM Zn; lanes 4 and 8 400 μM Zn.