measurement aspect ratio relative frequency relative frequency relative frequency relative frequency units % % % % sample bulk peptide cys_peptide surface 0.025 0 0 0 0 0.075 0 0 0 0 0.125 0 0 0 0 0.175 0 0 0 0 0.225 0 0 0 0 0.275 0 0 0 0 0.325 0 0 0 0 0.375 0 0 0 0 0.425 0.51813 0 0 0 0.475 0.51813 0.2551 0.27624 0.20619 0.525 1.29534 0 1.38122 0.20619 0.575 1.5544 0.5102 4.14365 0.41237 0.625 3.88601 1.78571 4.97238 1.23711 0.675 5.69948 4.33673 8.56354 2.06186 0.725 8.54922 6.12245 14.36464 7.62887 0.775 12.6943 9.94898 16.57459 9.27835 0.825 16.58031 18.11224 14.36464 16.90722 0.875 15.02591 19.13265 12.70718 19.79381 0.925 14.50777 20.40816 11.32597 22.68041 0.975 19.17099 19.38775 11.32597 19.58763