The PDBFINDER database is a database that is constructed using a PERL script from the PDB, DSSP and HSSP databases. Many of the fields contained in the PDBFINDER database are difficult to access from the original databases. Some information is retrieved from the original literature. The PDBFINDER database was constructed by Rob W.W. Hooft, Michael Scharf, Chris Sander, and Gert Vriend. Since 2000 maintenance is performed by Elmar Krieger.