Table 3.

Parameters from the analysis of the [urea] and [KCl] upshifts at 37 and 10 °C

	37 °C	10 °C
k−2 (s−1)	3.3 ± 0.7	7.2 (±0.7) × 10−1
K3o a	2.7 (±0.9) × 105	3.2 (±0.6) × 103
dlnK3/d[urea] b	−3.3 ± 0.1 M−1	−3.5 ± 0.1 M−1
k−3o (s−1) a c	1.1 (±0.7) × 10−2	3.3 (±1.0) × 10−2
k3o (s−1) a d	3.0 (±2.2) × 103	1.0 (±0.4) × 102
dlnk−3/d[urea] c	1.1 ± 0.2 M−1
dlnk3/d[urea] e	−2.2 ± 0.2 M−1	−2.5 ± 0.2 M−1

^aX^o is the value of X in DB (containing 0.12 M KCl and no urea)

^bDetermined from a fit of the linear regions of the data in Fig 3a (0–1.5 M urea at 10 °C and 0–2.5 M urea at 37 °C)

^cCalculated from fits of the data in Figure 3a to eq 5 in the text

^dCalculated from values of K₃ (= k₃/k₋₃) and k₋₃ in this table

^eCalculated from: dlnk₃/d[urea] = dlnK₃/d[urea] + dlnk₋₃/d[urea]