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Electron density of the AIMPARFYPK peptide. The electron density is contoured at 1σ and clearly shows density for all of the peptide including the additional N-terminal alanine (left). The peptide is coloured according to B values from blue to red (13–48 Å2). (a) Side view, (b) top view. All figures were prepared with PyMOL (DeLano, 2002 ▶).
