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. 2021 Mar 3;10:e60889. doi: 10.7554/eLife.60889

Table 2. Exchange kinetics from 2D NMR lineshape analysis.

kon,1 (M−1 s−1) koff,1 (s−1) Kd,1 (nM) kon,2 (M−1 s−1) koff,2 (s−1) Kd,2 (nM)
H1 (two site) (1.5 ± 0.6) × 109 40 ± 5 27* (3.7 ± 1.3) × 108 16 ± 3 42*
H2 (one site) (1.6 ± 0.1) × 108 2600 ± 100 16000 ± 1000

*Kds taken from ITC analysis, kept constant during fitting.

NMR: nuclear magnetic resonance; ITC: isothermal titration calorimetry.