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. Author manuscript; available in PMC: 2009 Aug 6.
Published in final edited form as: J Chromatogr A. 2006 Dec 21;1141(2):212–225. doi: 10.1016/j.chroma.2006.12.024

Figure 3.

Figure 3

Panel A: Correlation plot of the hydrophilicity/hydrophobicity coefficients at the peptide N-terminus with a Nα-amino group versus coefficients at the C-terminus with a Cα-carboxyl group determined from reversed-phase retention behaviour of peptides at 25°C (data taken from Peptide 1 and Peptide 4, Table 3). The peptide sequences are shown in Table 1. The hydrophobic amino acid substitutions are denoted by the single letter code. Y = 0.558 x + 0.242, correlation coefficient R = 0.967. Panel B: The differences in coefficients between Peptide 1 and Peptide 4 are plotted as a bar graph (data taken from Table 3).