Protein Data Bank (file format)

The Protein Data Bank (PDB) file format is a textual file format describing the three-dimensional structures of molecules held in the Protein Data Bank, now succeeded by the mmCIF format. The PDB format accordingly provides for description and annotation of protein and nucleic acid structures including atomic coordinates, secondary structure assignments, as well as atomic connectivity. In addition experimental metadata are stored. The PDB format is the legacy file format for the Protein Data Bank which has kept data on biological macromolecules in the newer PDBx/mmCIF file format since 2014.

".pdb" redirects here. For the Microsoft file format, see Program database. For the new file format called PDBx/mmCIF, see mmCIF.
PDB
Filename extension
.pdb, .ent, .brk
Internet media type
chemical/x-pdb
Developed byProtein Data Bank
Type of formatchemical file format
Container forMolecule 3D structure, Protein tertiary structure
Extended tommCIF
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