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From today, July 1st 2019, submission of PDBx/mmCIF format files for crystallographic depositions to the PDB is mandatory.
Our recent update to the wwPDB validation reports provides much clearer validation information for ligands. We now include 2-dimensional diagrams of ligands, highlighting geometric validation criteria and, for structures determined by crystallography, 3-dimensional views of electron density. We also provide calculated electron density map coefficients which were used to generate the analysis in the validation reports.
All of us at wwPDB were deeply saddened to hear of the recent passing of Prof. Michael G. Rossmann and our condolences go out to his family and friends at this time. Michael contributed so much to the field of structural biology and was a great supporter of the wwPDB and our activities. Here we would like to share our own tribute to Michael and his contribution to the PDB archiving efforts.