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Lifetime density maps for the Pfr forms of (A) native phyA excited at 733 nm, and (B) PCB-65 kDa-phy, and (C) iso-PCB-65 kDa-phy, both excited at 715 nm. At these wavelengths the remaining Pr forms after phototransformation are not excited. For a description of the color coding see Fig. 3. (C) Lifetime range below ∼200 fs has not been included in the analysis because of problems with the coherent solvent dynamics.
