Figure 3.

The refolding kinetics of protein L at −15°C are complicated by linear instrument drift under the conditions used. Thus, whereas single- and stretched-exponential models fit the data approximately equally well (residuals B and C Right), it is only with the inclusion of a linear baseline that all phases are accounted for (Right). Much of the remaining residual appears to arise because of sinusoidal electronic noise. Solid line indicates fit of single-exponential linear baseline model (Left).