<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><p class=""><font face="Georgia" size="4" class="">The wwPDB and the <a href="https://www.ncbi.nlm.nih.gov/pubmed/26578576" target="_blank" class="">EMDataBank/Unified Data Resource for 3DEM Project</a>
have collaborated to update the experimental methods descriptions of
all electron microscopy and electron crystallography-derived structures
in the PDB archive. </font></p><p class=""><font face="Georgia" size="4" class="">With this work now completed, all 3DEM-derived
entries have better-organized content and conform to the revised data
model developed by the EMDataBank team for use within the <a href="http://wwpdb.org/deposition/system-information" class="">wwPDB OneDep System</a>.
The OneDep System has supported deposition, annotation, and validation
of 3DEM structures and fully integrates deposition of 3DEM maps and
model coordinates since January 2016.</font></p><p class=""><font face="Georgia" size="4" class="">Examples of 3DEM model files (both remediated and from the OneDep system) are provided in a new wwPDB ftp directory (<a href="ftp://ftp.wwpdb.org/pub/pdb/test_data/EM/" class="">ftp://ftp.wwpdb.org/pub/pdb/test_data/EM/</a>). A data-item level description of the changes made during remediation is provided <a href="http://cdn.wwpdb.org/wwpdb/docs/documentation/remediation/summary-changes.xlsx" class="">here</a>. 3DEM terms in the updated PDBx/mmCIF dictionary can be reviewed <a href="http://mmcif.wwpdb.org/dictionaries/mmcif_pdbx_v5_rc.dic/Groups/em_group.html" target="_blank" class="">here</a>.</font></p><p class=""><font face="Georgia" size="4" class="">Files in the current PDB ftp archive will be replaced with new files
corresponding to the updated PDBx/mmCIF dictionary in 2017. Users are
encouraged to review and test the example data files.</font></p><div class=""><font face="Georgia" size="4" class=""><br class=""></font></div><div class=""><a href="http://wwpdb.org/news/news?year=2016#584eb873f56c2fe54376c1ef" class=""><font face="Georgia" size="4" class="">http://wwpdb.org/news/news?year=2016#584eb873f56c2fe54376c1ef</font></a></div><div class=""><font face="Georgia" size="4" class=""><a href="http://www.emdatabank.org/remediation_3dem.html" class="">http://www.emdatabank.org/remediation_3dem.html</a> </font></div></body></html>