Figure 1.
Diagnostic NOEs observed by Rieman and Waters1 in the series of four peptides differing by the degree of lysine-9 ε-N-methylation. Upper left = Lys; Upper right = Lys(Me); Lower left = Lys(Me2); Lower right = Lys(Me3). Red arrows indicate NOEs between Lys(Me)n and Trp2; green arrows indicate NOEs between Lys(Me)n and Trp4; cyan arrows indicate NOEs between Lys(Me)n and Leu11.