BNL FTP Phaseout

Since 1999, the Research Collaboratory for Structural Bioinformatics (RCSB) has maintained two distinct FTP sites: the RCSB Protein Data Bank (PDB) site at (and its mirrors; see, and the Brookhaven National Laboratory (BNL) PDB site at

In order to conserve resources and avoid confusion arising through the existence of two distinct PDB FTP sites, the RCSB PDB will phase out the BNL PDB archive as of March 1, 2002, as announced on October 19, 2001 ( This decision was made after consultation with the PDB Advisory Committee and review by members of the PDB user community.

The files previously available only at are now available at

Current users of the BNL PDB archive are encouraged to consider the option of mirroring the RCSB PDB FTP archive. The RCSB PDB FTP archive can be found at and instructions for mirroring it can be found at

A Perl script is provided to assist with conversion of existing BNL FTP directory structure to the RCSB PDB FTP directory structure. Further information about the script is available at

Please send your questions or concerns, or requests for assistance regarding this change, to

Note: This document is part of the historical record of the PDB. Since the original hyperlinks have become obsolete or are no longer relevant, they have been replaced by an underlined font.