Protein Data Bank

Protein Data Bank (PDB) is a database of proteins and other biological molecules. It is also the name of one of the file formats used in that database. The format stores the structure of a molecule, and related data.

There is also an XML-based variant of PDB format, named PDBML.

Specifications

 * current official documentation here
 * Old format specifications from 1992: http://www.rcsb.org/pdb/file_formats/pdb/pdbguide2.2/PDB_format_1992.pdf
 * Version 2.2 specs from 1996: http://www.rcsb.org/pdb/file_formats/pdb/pdbguide2.2/pdb_contents_guide2.2.pdf

Sample files

 * ftp://ftp.wwpdb.org/pub/pdb/data/structures/divided/pdb/

Links

 * Wikipedia: Protein Data Bank (file format)
 * Wikipedia: Protein Data Bank
 * Worldwide Protein Data Bank website
 * RCSB PDB website