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. 2013 Feb 6;8(2):e55662. doi: 10.1371/journal.pone.0055662

Figure 1. Substrate concentration modulates luciferase activity.

Figure 1

a, b) The PEmax and AUC values increase exponentially with the D-Luciferin concentration. c) The time for maximal luciferase activity is dependent on the substrate concentration. d) The slope of initial photon emission kinetics is concentration dependent. (* statistically significant difference with p≤0.05 to standard protocol 150 mg/kg post-Iso in post hoc comparison with Sidak correction).