Figure 1.
Examples of Ramachandran plots: Left: a good-looking Ramachandran plot for (1ix9, 0.9 Å), Middle: an obviously bad Ramachandran plot (5a9z, 4.7 Å) and Right: a suspicious Ramachandran plot (6dzv, 4.2 Å). PDB ID code of the models in top right corner. Two numbers (bottom right) indicate percentage of residues in favored (top) and outlier (bottom) regions.