Figure 1

Schematic diagram of pipeline for constructing the database. The order of operations is indicated numerically. Database tables are shown with coloured backgrounds: primary entities (those with attributes derived directly by processing information in PDB files) are in claret (darker), entities derived by querying the primary entities and their relationships are in blue-green (brighter). Intermediate text files are not generally shown, nor is the manual addition of active site data to the residue entity, or the pruning of some of the type-1 β-turns described in the text.