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. 2000 Jul 25;97(16):9009–9014. doi: 10.1073/pnas.160261497

Figure 5.

Figure 5

The effect of the iscS mutation on the activity of FNR mutants that exhibit altered Fe-S cluster requirements. β-galactosidase activity produced from the dmsA′∷lacZ promoter fusion was assayed from strains (IscS+; PK3293, filled columns, IscS-; PK4359, open columns) grown under aerobic conditions (Upper) and anaerobic conditions (Lower). WT FNR, FNR-D154A, and FNR-L28H were present on the multicopy plasmid pACYC184 (58).