Table 1.
Thermodynamics for dissociation of AA from templates determined with global fitting to a three-state sequential model
Sequence | Method | (°C)a | (kJ mol−1) | (J mol−1 K−1) | (kJ mol−1)b |
---|---|---|---|---|---|
TTg:AA | IRc | 26 ± 2 | 91 ± 2 | 245 ± 6 | 21.7 ± 1.1 |
NMR | 28 ± 3 | 79 ± 5 | 203 ± 20 | 21.5 ± 4.5 | |
ITCd | – | 83 ± 5 | – | 23.1 ± 1.3 | |
UUg:AA | IRc | 24 ± 1 | 56 ± 1 | 131 ± 3 | 19.2 ± 0.6 |
ITCd | – | 51 ± 1 | – | 23.5 ± 0.4 | |
TTo:AA | IRc | 5 ± 1 | 67 ± 1 | 182 ± 4 | 16.1 ± 0.8 |
Errors are derived from 95% confidence intervals in fit parameters and . and the dissociation free energy at 8°C () from ITC measurements are also listed, where errors correspond to 95% confidence intervals from two-state fits (supporting material, Section 4.2).
is defined as the temperature where half of the total AA concentration is bound to the template.
Free energy change for AA dissociation at 8°C.
IR refers to global fits of FTIR and 2D IR temperature series.
ITC was performed at 8°C.