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. 2007 Aug 24;73(20):6436–6443. doi: 10.1128/AEM.00586-07

TABLE 3.

Screening of 14,000 natural products with antibiotic biomarker strains

Biomarker Reference antibiotic MIC of reference antibiotic [μM (μg/ml)] Maximal signal induction by reference antibiotic (%) SD (%) Z′ factor Detection cutoff (%) Minimal signal-inducing concn of reference antibiotic at detection cutoff (μM) No. (%) of confirmed hits
yheI Linezolid 3.13 (0.93) 980 13 0.84 200 0.1 26 (0.2)
yorB Ciprofloxacin 0.71 (0.25) 1,380 9 0.87 250 0.06 12 (0.1)