Fig. 5.

The dependence of fluorescent product formation from FSAY(3-NH₂)LER on the ABS concentration, analyzed by fluorescence spectrometry (solid lines) and RP–LC (dashed line) with fluorescence detection (excitation and emission wavelengths were 360 and 480 nm, respectively). The reaction was performed in the presence of 0.5 mM K₃Fe(CN)₆ for 1 h at room temperature with different concentrations of ABS and 3-AT peptide as indicated in respective panels