FIG. 3.

Fluorescence spectra of purified ethylbenzene dehydrogenase (1 mg ml⁻¹) prepared in the presence (A_ex and A_em, solid lines) or absence (B_ex and B_em, dashed lines) of iodine. The emission spectra (A_em and B_em) were recorded at 375 nm. The excitation spectra (A_ex and B_ex) were recorded at 470 nm.