Figure 2
The hydrogen bonding in a hydrophilic layer. The view direction is approximately parallel to the z axis (only one face of the unit cell is shown). Peptide main chains and the three classical hydrogen bonds between them are shown in black. The L-Phe side chain and the hydrogen bonds associated with it are shown in a grey halftone. The L-Leu side chain and all H atoms not directly involved in hydrogen bonding have been removed for clarity. |