Table S4.
Sample | τ1, fs | τ2, ps | τ3, ps | τ4, ps |
PCB-ApcE(50–240/Δ77–153) in H2O | 77 | 4.2 | 176 | 754 |
PCB-ApcE(36–240/Δ77–153) in H2O | 74 | 3.6 | 186 | 720 |
PCB-ApcEΔΔ in H2O | 48 | 4.0 | 169 | 973 |
PCB-ApcEΔ In H2O | 80 | 3.5 | 99 | 600 |
PCB-ApcEΔ in D2O | 77 | 5.3 | 201 | 892 |
Time constants of PCB-ApcEΔ and its variants in KPB (20 mM, pH 7.0). The excitation pulse was at 660 nm with ∼10-nm FWHM. τ1 is considered a coherent artifact.