Since 1971, the Protein Data Bank archive (PDB) has served as the single repository of information about the 3D structures of proteins, nucleic acids, and complex assemblies.
The Worldwide PDB (wwPDB) organization manages the PDB archive and ensures that the PDB is freely and publicly available to the global community.
F. Bogo, J. Romero, M. Loper, and M. Black. Proceedings of the 2014 IEEE Conference on Computer Vision and Pattern Recognition, page 3794--3801. Washington, DC, USA, IEEE Computer Society, (2014)