Since 1999, the Research Collaboratory for Structural Bioinformatics (RCSB) has maintained two distinct
FTP sites: the RCSB Protein Data Bank (PDB) site at ftp://ftp.rcsb.org/
(and its mirrors; see http://www.rcsb.org/pdb/mirrors.html), and the Brookhaven National Laboratory (BNL) PDB site at ftp://bnlarchive.rcsb.org.
In order to conserve resources and avoid confusion arising through the existence of two distinct PDB
FTP sites, the RCSB has phased out the BNL PDB archive as of March 1, 2002, as announced on
October 19, 2001 (http://www.rcsb.org/pdb/lists/pdb-l/200110/msg00024.html).
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 ftp://bnlarchive.rcsb.org/pub/resources/index/ are now available at ftp://ftp.rcsb.org/pub/pdb/derived_data/index/.
Current users of the BNL PDB archive are encouraged to consider the option of mirroring the
RCSB FTP archive. The RCSB FTP archive can be found at ftp://ftp.rcsb.org
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 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
The RCSB PDB (
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