Because good research needs good data

PDBx/mmCIF – Protein Data Bank Exchange Dictionary and the Macromolecular Crystallographic Information Framework


PDBx/mmCIF Software Resources

Parsing, validation, and visualization tools and libraries supporting PDBx/mmCIF, the data standard used by the Worldwide Protein Data Bank.

Use Cases


A Web-based service for searching for and visualizing chemical structures. It uses data from the Protein Data Bank that has been transformed to RDF.

Worldwide Protein Data Bank

The Protein Data Bank archive (PDB) is a worldwide archival 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.