The effects of spectral magnitude on analyses using the CONTINLL method with different wavelength ranges of data for (A) ceruloplasmin and (B) serum albumin. For A, the calculated sheet fractions for data to 178 nm (orange) and for data to 190 nm (red) are shown, as are the corresponding NRMSD values (blue and purple, respectively). For B, the calculated helix fractions for data to 178 nm (light green) and for data to 190 nm (dark green) are shown, as are the corresponding NRMSD values (blue and purple, respectively).