Fig. 4

PDB capsid structure matches. The number of capsid structures identified by the DALI program in (a) the full PDB and (b) the 90% non-redundant PDB (PDB-90) is shown for queries using the full foamy capsid structure (red), the carboxy terminal domain (green) and the amino terminal domain (blue). The number of capsid hits (Y-axis) is plotted against the order of all hits ranked by Z-score down to a value of 2. A curve approaching the top left corner indicates greater specificity and the extent of a curve to the right indicates the total number of hits