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. Author manuscript; available in PMC: 2017 Mar 7.
Published in final edited form as: Chemistry. 2016 Jan 19;22(11):3671–3675. doi: 10.1002/chem.201503944

Figure 4.

Figure 4

Normalized bioluminescence emission spectra for alkynyl luciferin 2 (λmax 610 nm) and D-luciferin 1 (λmax 565 nm). Samples (100 μM) were combined with Fluc (10 μg) and monitored at 25 °C.