A Structural View of Biology

This resource is powered by the Protein Data Bank archive-information about the 3D shapes of proteins, nucleic acids, and complex assemblies that helps students and researchers understand all aspects of biomedicine and agriculture, from protein synthesis to health and disease.

Use this website to access curated and integrated biological macromolecular information in the context of function, biological processes, evolution, pathways, and disease states.

Events and Activities

October Molecule of the Month

RCSB PDB Molecule of the Month
Dipeptidyl Peptidase 4

Deposition Preparation Tools

Data Extraction

  • pdb_extract: Extract and harvest data in PDBx/mmCIF format from structure determination programs
  • SF-Tool: Convert structure factor files among various formats

Small Molecules

  • Ligand Expo: Search the Chemical Component Dictionary for the IDs of released ligands

Data Format Conversion

  • PDBML2CIF: Convert PDBML-format data into PDBx/mmCIF-format
  • PointSuite: Generate symmetry records for macromolecular assemblies with point and helical symmetries
  • MAXIT: Translate data between file formats and more

Explore the PDB Archive

3D Structure Viewers

View PDB structures in 3D using one of these tools from any entry's Structure Summary page: NGL, PV, Jmol, and Protein Workshop. These viewers offer several different options for display and analysis.

Sequence & Structure Alignment

RCSB PDB's Comparison Tool calculates pairwise sequence (blast2seq, Needleman-Wunsch, and Smith-Waterman) and structure alignments (FATCAT, CE, Mammoth, TM-Align, TopMatch).

Comparisons can be made for any protein in the PDB archive and for customized or local files not in the PDB. Special features include support for both rigid-body and flexible alignments and detection of circular permutations.


Download: Coordinates & Experimental Data

Enter PDB IDs separated by comma or white space. Note: The Download Tool is launched as a stand-alone application using the Java Web Start protocol. More Download Help


Experimental Data:

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Molecular explorations
through biology and medicine

PDB-101 is an online portal for teachers, students, and the general public to promote exploration in the world of proteins and nucleic acids.

Browse all PDB-101 resources by biological theme or start exploring:

  • Molecule of the Month

    Presents short accounts on selected molecules from the Protein Data Bank.

  • News and Events

    Upcoming meetings and events RCSB will hold

  • Educational Resources

    Access materials that promote exploration in the world of proteins and nucleic acids.

  • Guide to PDB Data

    Understanding PDB Data is a reference to help explore and interpret individual PDB entries.

  • Curricula

    Authentic, hands-on teaching materials, individual and group activities.

  • Geis Digital Archive

    View iconic illustrations by the gifted artist Irving Geis (1908-1997) in context with PDB structures and educational information.

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 Tuesday Oct 18, 2016 at 5 PM PDT there are 123622 structures.

Next data entry update in:

Structural Biology Knowledgebase

Collection of Research Highlights

Collection of Research Highlights

The Structural Biology Knowledgebase (SBKB) is a free resource supported by the Protein Structure Initiative that gathers the latest protein structures, models, targets, and annotations from over 100 data sources. Research highlights by SBKB and the Nature Publishing Group provide insights into biology and medicine, spanning from basic molecular biology to infectious diseases and pathogenesis to drug discovery. Reviews of novel bench methods as well as improvements to tried-and-tested techniques also help researchers with their lab work. There are more than 450 articles to learn from in this collection.Read More

Molecule of the Month

Dipeptidyl Peptidase 4

Dipeptidyl Peptidase 4

Inhibitors of dipeptidyl peptidase 4 are used to treat type-2 diabetesRead More

Quarterly News (see archive)

Fall 2016 Issue

Learn about new website resources and access the new wwPDB Validation Server. In the Education Corner, Todd P. Silverstein (Willamette University) describes Myoglobin Structure and Function: A multi-week biochemistry laboratory project for undergraduates. Fall 2016 Newsletter

Annual Reports

2015 Annual Report

Download the 2015 Annual Report (PDF) for an overview of data deposition, query, outreach, and education activities.

Annual Report Archive