Decay-associated spectra of the time components from the global analysis of the free Oxo VI (blue, compared to its absorption spectrum in gray), and Oxo VI bound to BSA (red and yellow). The global analysis has been done on the maps in ( e ) and ( f ), and the position of the corresponding vertical lines marks the maxima of the transient spectral components. The number of experimental repetitions is described in the Statistics and Reproducibility section in Methods.