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HEADLINES
No. 20 Winter 2004 FRONT PAGE Message from the RCSB PDB Announcing the Worldwide Protein Data Bank Downloadable PDB_EXTRACT Makes Deposition Easier Biological Unit Tutorial Now Available from the RCSB PDB Ligand Depot--a Small Molecule Information Resource PDB Focus: Deposition and Release Policies PDB Deposition Statistics Lucene Keyword Search Released on the RCSB PDB Web Site PDB Focus: Redundancy Reduction Cluster Data Available on the PDB FTP Site PDB Focus: Searching for Experimental Data Files Updates of mmCIF Files on the RCSB PDB FTP Site RCSB PDB Web Site Statistics NIGMS News: PSI-2 and Structural Biology Roadmap RFA RCSB PDB Article Published in Nucleic Acids Research New Update Release of CD-ROM Sets PDB Molecules of the Quarter: Trypsin, Simian Virus 40, and Catabolite Activator Protein PDB Community Focus: Edward N. Baker PDB Education Corner by Katherine Kantardjieff Related Links: FTP Resources RCSB PDB Job Listings RCSB PDB Members & Statement of Support Questions? info@rcsb.org © 2004 RCSB PDB
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PDB Focus: Searching for Experimental Data FilesThe PDB offers several ways to locate experimental data files for structure entries. The SearchFields interface offers an option to narrow a search to only include entries that have experimental data (X-ray structure factors or NMR restraints) available. This option can be activated by selecting "Experimental Data Availability" from the custom options at the bottom of the SearchFields page. To further narrow the search to only structure factors or only constraint data, select the preferred experimental method from the pull down menu in the "Exp. Technique" field. Information about this and other options available on the SearchFields interface can be found on the SearchFields help page. Experimental data files can be downloaded from the Structure Explorer page, if the experimental data file is available for that structure. Click on the "Structure Factors" or "NMR Restraints" link on the left side of the page to access the experimental data file. Experimental data files are also available for downloading from the
RCSB PDB FTP site. Directories for either X-ray structure factors or
NMR restraints can be found at
ftp://ftp.rcsb.org/pub/pdb/data/structures/all/, or
subdivided by the second and third character of their PDB IDs at
ftp://ftp.rcsb.org/pub/pdb/data/structures/divided/. Experimental
data files for structures that have been removed from the archive
can be found at ftp://ftp.rcsb.org/pub/pdb/data/structures/obsolete/.
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