PDB_EXTRACT INTEGRATED INTO CCP4 PROGRAM SUITE
DB_EXTRACT is a program suite developed by the RCSB that contains
tools and examples for extracting mmCIF data from structure
determination applications. It has been integrated with the CCP4i
interface of the CCP4 program suite for protein crystallography
PDB_EXTRACT is also available for download (both source and
executable) from deposit.pdb.org/mmcif/PDB_EXTRACT/index.html.
PDB_EXTRACT extracts information about data processing, heavy atom
phasing, molecular replacement, density modification, and final
structure refinement from the output files produced by many X-ray
crystallographic applications. The program merges these data into
macromolecular Crystallographic Information File (mmCIF) data files
that can be used with ADIT to perform validation and to add any
additional information for PDB deposition.
PDB_EXTRACT can also be used online at pdb-extract.rutgers.edu.
PDB DEPOSITION STATISTICS
n the first half of 2004, approximately 2726 structures were
deposited in the PDB archive. Of the structures received, 79% were
deposited with a "hold until publication" release status; 13% with a
"release immediately" status; and 8% with a specific release date.
83% of these entries were the result of X-ray crystallographic
experiments; 14% were determined by NMR methods.