The folding (open symbols) and unfolding (filled symbols) relaxation times of mSOD1*, as a function of denaturant concentration, are shown at every 5 K. A) 283 K (circles), 288 K (squares), 293 K (up triangle), 298 K (down triangle), 303 K (diamond), 308 K (hexagon), and 313 K (up triangle). B) 285.5 K (circles), 290.5 K (squares), 295.5 K (up triangle), 300.5 K (down triangle), 305.5 K (diamond), and 310.5 K (hexagon).