Search Related Features
Basic Search
From any page on the site, a Basic Search can be run by entering a search term in the top Search Bar.
As you enter a term, you will see suggestions appearing in the dropdown menu that appears below the search bar. The suggestions are grouped by attribute name, indicating in the specific field or fields in which the search term was found.
You can click on an item in the dropdown menu to see results matching only that particular attribute, or click the
Advanced Search
The Advanced Search Query Builder tool allows you to construct complex boolean queries by specifying values for a wide range of structure attributes.
Text-based queries can be combined with sequence and structure similarity searches.
Search results can be returned at the structure, entity, or assembly level, and viewed in a variety of formats, for example, as a summary view, an images only gallery view, or in a Tabular Report format.
Any query and its results can be further refined by selecting additional criteria from the 'Refinements' panel.
Search by Sequences
Search protein and nucleic acid sequences using the mmseqs2 method to find similar protein or nucleic acid chains in the PDB.
The new Advanced Search Query Builder tool can be used to run sequence searches, and to combine the results with the other search criteria that are available.
Search by Unreleased & Access New Entries
The PDB archive is updated weekly in two phases
Phase I: Every Saturday by 3:00 UTC, for every new entry, wwPDB website provides sequence(s) (amino acid or nucleotide) for each distinct polymer and, where appropriate, the InChI string(s) for each distinct ligand and the crystallization pH value(s).
Phase II: Every Wednesday by 00:00 UTC, all new and modified data entries will be updated at each of the wwPDB FTP sites.
As of Tue Jul 07 2020 there are 166301 structures.
Next data entry update in:
Browse by Annotation
PDB entries have been annotated by various ontologies and hierarchical classification schemes.
- Anatomical Therapeutic Chemical Classification System
- Biological Process
- CATH
- Cellular Component
- Enzyme Classification
- Genome Location
- Membrane Protein
- MeSH (Medical Subject Headings)
- Molecular Function
- SCOP
- Protein Symmetry
- Source Organism
Explore the PDB Archive
The Explore the PDB Archive feature on the home page allows you to quickly view the archive in a series of pie charts. Each chart displays a statistical drilldown of the data in the following categories:
- Organism
- Taxonomy
- Experimental Method
- Resolution (Å)
- Release Year
- Entity Polymer Type
- Enzyme Classification
- Membrane Protein
In addition, the drilldown data includes links to the Search Results page, where the data can be explored in greater detail.
Search PDB Statistics
The PDB Statistics page lists the current holdings in the PDB and various growth statistics and histograms.
- Summary Table of Released Entries
- Growth of Released Structures Per Year
- Growth of X-ray Structures Per Year
Search by Ligands
Search ligands bound to macromolecules in the PDB by:
- Identifier or Name
- SMILES String, InChI or InChI Key
- Chemical Formula or Molecular Weight
- Chemical Substructure or Similarity
Right image: MarvinJS by ChemAxon for Ligand Search of Lipitor
Start Ligand SearchLigand SearchSearch by Drugs & Drug Targets
Drugs & Drug Targets in the PDB have been mapped to DrugBank.
Drug-Target Complex: Atorvastatin bound to its target HMG-CoA reductase
Drug: Atorvastatin (Lipitor)
