February 2016 release:
Sigma-weighted 2m|Fo|-d|Fc| electron density "mini-maps" for ligands are available from the JSmol 3D View. This option is available for ligands with more than one atom (ions excluded) in PDB entries with structure factor data. Different sigma values can be selected.
To access this feature, select the Electron Density (JSmol) button from the "Small Molecules > Ligands" table on a Structure Summary page.
A new Protein Feature View track displays regions in a protein sequence for which genetic variation information is available as annotated in UniProt.
A new Advanced Search option for Wild Type Protein selects protein sequences that do not contain mutations in comparison with the reference UniProt sequence.
Some PDB entries include expression tags that were was added during the experiment. Select "No" for the "Include Expression Tags" option to filter out sequences with expression tags.
PDB entries may also contain only a portion of the referenced UniProt sequence. The "Percent coverage of UniProt sequence" option defines how much of a UniProt sequence needs to be contained in the PDB entry.
The layout of Search Results has been extensively redesigned to simplify browsing and improve the usability on both desktop and mobile devices. The left column provides options to refine the search results, while the right column displays the structures matching the search.
Try out our new search results page with a text search on "actin"
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National Science Foundation, the
National Institutes of Health, and the
US Department of Energy.