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. Author manuscript; available in PMC: 2011 Dec 1.
Published in final edited form as: Mol Microbiol. 2010 Oct 29;78(6):1448–1467. doi: 10.1111/j.1365-2958.2010.07418.x

Figure 8. The failure of the Isc system during H2O2 stress is not due to a lack of Isc synthesis.

Figure 8

(A) Expression after aeration of a transcriptional lacZ fusion placed behind the sufNI promoter that lacks the OxyR binding site. Induction by apo-IscR is greatest in a suf mutant. (B) Expression after aeration of a transcriptional lacZ fusion placed behind the iscRSUA promoter. (C) IscU polypeptide was detected by western blot analysis using an anti-IscU antibody during aerobic growth. The experiments were performed using glucose/casamino acids medium.