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Analytical ultracentrifugation of NBD-MS1-N14A and NBD-MS1-N14Q in C14-betaine micelles. The peptides at different peptide-to-detergent ratios (1:150 and 1:300 molar ratios) in 100 mM sodium phosphate buffer, pH 7.0, 13% D2O, were centrifuged at 40, 45, and 48 K. A monomer–trimer equilibrium scheme was used to fit curves to the experimental data. Residuals of curve fits for each individual data set are shown above the data.
