Tables for
Volume F
Crystallography of biological macromolecules
Edited by M. G. Rossmann and E. Arnold

International Tables for Crystallography (2006). Vol. F. ch. 24.5, p. 677   | 1 | 2 |

Section Data-processing statistics

H. M. Berman,a* J. Westbrook,a Z. Feng,a G. Gilliland,b T. N. Bhat,b H. Weissig,c I. N. Shindyalovc and P. E. Bourned

aDepartment of Chemistry, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854-8087, USA,bNational Institute of Standards and Technology, Biotechnology Division, 100 Bureau Drive, Gaithersburg, MD 20899, USA,cSan Diego Supercomputer Center, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0537, USA, and dDepartment of Pharmacology, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0537, USA
Correspondence e-mail: Data-processing statistics

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Production processing of PDB entries by the RCSB began on 27 January 1999. As of 1 July 1999, when the RCSB became fully responsible for the PDB, approximately 80% of all structures submitted to the PDB are deposited via ADIT and processed by the RCSB. Another 20% are submitted via AutoDep to the European Bioinformatics Institute (EBI), who process these submissions and forward them to the PDB for archiving and distribution. The average time from deposition to the completion of data processing including author interactions is two weeks. The number of structures with a HOLD release status remains at about 20% of all submissions; 57% are held until publication (HPUB); and 23% are released immediately after processing.

Table[link] shows the breakdown of the types of structures in the PDB. As of 14 September 1999, the PDB contained 10 714 publicly accessible structures with another 1169 entries on hold (not shown). Of these, 8789 (82%) were determined by X-ray methods, 1692 (16%) were determined by NMR and 233 (2%) were theoretical models. Overall, 35% of the entries have deposited experimental data.

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Demographics of the released data in the PDB as of 14 September 1999

Experimental techniqueMolecule type
Proteins, peptides, and virusesProtein–nucleic acid complexesNucleic acidsCarbohydrates and otherTotal
X-ray diffraction and other 7946 390 439 14 8789
NMR 1365 53 270 4 1692
Theoretical modelling 202 16 15 0 233
Total 9513 459 724 18 10714

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