Table 1. Fluorescence Quenching of Coralyne with KBra.
in absence
of c-di-AMP |
in presence of 40 μM of c-di-AMP |
|||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
quencher KBr [mM] | τI (νσ) | fi | ταω̅γ (νσ) | χ2 | το/τb (I0/I) | I | τI (νσ) | fi | ταω̅γ (νσ) | χ2 | το/τb (I0/I) | I |
0 | 14.22 | 1 | 14.2 | 1.85 | 1 | 242 | n/a | |||||
9.82 | 0.317 | (1) | n/a | n/a | n/a | n/a | n/a | |||||
<30> | 0.683 | 24.97 | 1.16 | |||||||||
10 | 11.61 | 1 | 11.61 | 1.42 | 1.22 | 96 | 12.13 | 1 | 12.13 | 30 | 428 | |
9.83 | 0.592 | (2.38) | 2.33 | 0.137 | ||||||||
<30> | 0.408 | 18.06 | 1.21 | 19 | 0.863 | 16.73 | 1.86 | 1 | ||||
1.29 | 0.072 | |||||||||||
5.92 | 0.131 | |||||||||||
28.73 | 0.797 | 23.76 | 1.04 | |||||||||
25 | 9.86 | 1 | 9.86 | 1.27 | 1.44 | 48 | 12.39 | 1 | 12.04 | 31 | 411 | |
8.86 | 0.731 | (4.75) | 2.5 | 0.136 | ||||||||
<30> | 0.269 | 14.55 | 1.10 | 19.43 | 0.864 | 17.11 | 1.4 | 0.98 | ||||
1.46 | 0.075 | (1.04) | ||||||||||
6.79 | 0.144 | |||||||||||
30.52 | 0.781 | 24.52 | 1.21 | |||||||||
50 | 8.52 | 1 | 8.52 | 1.10 | 1.67 | 14.3 | 12.04 | 1 | 12.04 | 25 | 420 | |
3.50 | 0.063 | (15.94) | 2.31 | 0.139 | ||||||||
8.99 | 0.937 | 8.64 | 1.04 | 18.58 | 0.861 | 16.32 | 1.54 | 1.02 | ||||
1.48 | 0.073 | (1.02) | ||||||||||
7.04 | 0.148 | |||||||||||
31,3 | 0.779 | 25.52 | 1.21 | |||||||||
75 | 7.11 | 1 | 7.11 | 1.37 | 2.0 | 12.3 | 11.9 | 1 | 11.9 | 26 | 386 | |
4.11 | 0.228 | (18.54) | 2.49 | 0.141 | ||||||||
8.22 | 0.772 | 7.29 | 1.12 | 18.63 | 0.859 | 16.35 | 1.6 | 1.02 | ||||
1.4 | 0.064 | (1.11) | ||||||||||
6.82 | 0.154 | |||||||||||
33.67 | 0.782 | 27.46 | 1.14 | |||||||||
100 | 6.67 | 1 | 6.67 | 1.35 | 2.13 | 6.6 | 11.89 | 1 | 11.89 | 27 | 387 | |
2.18 | 0.131 | (34.55) | 2.5 | 0.142 | ||||||||
7.19 | 0.869 | 6.53 | 1.03 | 18.7 | 0.858 | 16.4 | 1.51 | 1.02 | ||||
1.37 | 0.067 | (1.11) | ||||||||||
6.33 | 0.149 | |||||||||||
30.39 | 0.784 | 24.86 | 1.06 | |||||||||
250 | 4.38 | 1 | 4.38 | 3.77 | 3.25 | 3.9 | 11.36 | 1 | 1 | 28 | 317 | |
6.19 | 0.506 | (58.46) | 2.37 | 0.152 | ||||||||
2.02 | 0.494 | 4.13 | 1.03 | 16.96 | 0.848 | 14.75 | 1.69 | 1.13 | ||||
1.07 | 0.088 | (1.35) | ||||||||||
5.14 | 0.153 | |||||||||||
23.05 | 0.759 | 18.37 | 1.09 |
Ex. 445 nm, Em 480/30 nm. Condition: [coralyne] = 10 μM, [c-di-AMP] = 40 μM; buffer: 50 mM Tris-H3PO4 (pH 7.5) at 25 °C; average lifetime τavg = Σ fiτi.
For relative lifetime, single lifetime fit was used for KBr and average lifetimes from double-exponential fit in the presence of c-di-AMP.