The program uses a binary file containing all chains from the PDB with lengths ranging from 15 to 100 amino acids. Thus, a search within about 10,000 protein structures is possible. A search of a mimetic structure with 10 conformers within this library takes about 5 minutes, resulting in a list of about 15,000 hits with less than 0.1 Å Root Mean Square Distance (RMSD) between the stem atoms.

Alternatively, a list of about 2,000 chains with less than 90% sequence homology can be used. A corresponding search takes about 50 seconds, resulting in about 3,000 hits with less than 0.1 Å RMSD.

To take a short look on the program, you can alternatively use a small database with about 400 chains with less than 30% sequence homology. The zipped database has a size of only 3 MB.

All protein libraries can be downloaded from this website.