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Collects NMR data from any experiment and captures assigned chemical shifts, coupling constants, and peak lists for a variety of macromolecules; contains derived annotations such as hydrogen exchange rates, pKa values, and relaxation parameters.

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A snapshot of the PDB archive ( as of January 1, 2018 has been added to and Snapshots have been archived annually since January 2005 to provide readily identifiable data sets for research on the PDB archive.

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The paper (doi: 10.1016/j.str.2017.10.009) describes how validation reports for PDB structures determined by X-ray crystallography were first made available to depositors in 2013 and added to the PDB archive in 2014. In early 2016, following the update of the OneDep system, reports for structures solved by nuclear magnetic resonance and 3D electron microscopy were made available to the depositors and later incorporated into the PDB archive.

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