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Contact usToggle navigationRCSB PDBDeposit Prepare Data PDBx/mmCIF file pdb_extract SF-Tool Ligand Expo MAXITValidate Data Validation Server Validation API Information for Journals Validation Task ForcesDeposit Data wwPDB OneDep System PDB-DevHelp and Resources Deposit FAQ Validation FAQ Tutorials Annotation Policies Processing Procedures PDBx/mmCIF Dictionary PDBx/mmCIF User Guide Chemical Component Dictionary Biologically Interesting Molecule Reference Dictionary (BIRD) BioSync/Beamlines/Facilities Related ToolsSearch Advanced SearchSequence Similarity SearchStructure Similarity SearchChemical Similarity SearchChemical Sketch ToolBrowse by AnnotationsNew EntriesUnreleased EntriesPDB StatisticsVisualize Mol* (MolStar)Sequence Annotations ViewerGenome ViewAnalyze Pairwise Structure AlignmentSymmetry Resources in the PDBStructure Quality Grouping StructuresPDB Citation MeSH Network Explorer PDB StatisticsEPPIC Biological Assemblies External Data and Resources Integrated Resources Additional Resources Download Coordinates and Experimental DataSequencesLigandsFile Download ServicesWeb ServicesLearn Training Courses Guide to PDB Data Molecule of the Month Educational Resources Curricula Browse News SciArt Galleries Irving Geis David Goodsell About Contact UsAbout RCSB PDBVision and MissionCitation, Usage, Privacy Policies, LogoNewsPDB HistoryPDB50User CommunityPublicationsRCSB PDB Advisory CommitteeTeam MembersDiversity, Equity, Inclusion, and AccessService Status Documentation General Help 3D Structures in the Protein Data Bank Computed Structure Models (CSM) Search and Browse Basic Search Advanced Search Browse Annotations Visualize and Analyze Sequence Viewers Pairwise Structure Alignment Exploring a 3D StructureGrouping StructuresProgrammatic AccessAdditional ResourcesSoftware SupportersDeposition ResourcesFAQsGlossaryCareersCOVID-19222,926 Structures from the PDB1,068,577 Computed Structure Models (CSM) Access Computed Structure Models (CSMs) of available model organismsLearn moreWelcomeDepositSearchVisualizeAnalyzeDownloadLearnWelcomeRCSB Protein Data Bank (RCSB PDB) enables breakthroughs in science and education by providing access and tools for exploration, visualization, and analysis of:Experimentally-determined 3D structures from the Protein Data Bank (PDB) archiveComputed Structure Models (CSM) from AlphaFold DB and ModelArchiveThese data can be explored in context of external annotations providing a structural view of biology. July Molecule of the MonthRibosome DiversityPrepare Data PDBx/mmCIF filePrepare data in PDBx/mmCIF format pdb_extractExtract data from structure determination programs SF-ToolConvert structure factor files among various formats Ligand ExpoSearch the Chemical Component Dictionary for the IDs of released ligands MAXITTranslate data between file formats and moreValidate Data Validation ServerCheck your X-ray, NMR, or EM structures before depositing-standalone server Validation APIValidate your structures via programmatic remote access before deposition Information for JournalsInstructions to journal editors Validation Task ForcesRecommendations from method-specific Validation Task ForcesDeposit Data wwPDB OneDep SystemDeposit 3D macromolecular structure data to the PDB PDB-DevDeposit structural models obtained using integrative hybrid methodsHelp and Resources Deposit FAQ Validation FAQ Tutorials Annotation Policies Processing Procedures PDBx/mmCIF Dictionary PDBx/mmCIF User Guide Chemical Component Dictionary Biologically Interesting Molecule Reference Dictionary (BIRD) BioSync/Beamlines/Facilities Related ToolsAdvanced SearchComplex boolean queries with values for a wide range of structure attributesSequence Similarity SearchFind similar protein and nucleic acid sequences using the mmseqs2 methodStructure Similarity SearchSearch protein structures by global shape similarityChemical Similarity SearchFind ligands bound to macromolecules by SMILES String, InChI, or Chemical FormulaChemical Sketch ToolDraw a molecule and use the SMILES or InChI string to search for molecules in the CCDBrowse by AnnotationsPDB entries in context of annotations by various ontologies and hierarchical classification schemesNew EntriesSearch entries released since last TuesdayUnreleased EntriesSearch entries that are being processed, on hold waiting for release, or have been withdrawnPDB StatisticsPDB data distribution, archive growth, and moreMol* (MolStar)3D visualization for PDB structures and ligand binding sites. 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Access from each structure summary page.Pairwise Structure AlignmentCalculate pairwise structure alignments using various methodsSymmetry Resources in the PDBExplore tools that display global, local, and helical symmetry among subunitsStructure QualityThe slider graphic compares important global quality indicators for a given structure with the PDB archiveGrouping StructuresExplore conservation and trends in the structure properties, features, and functionsPDB Citation MeSH Network Explorer Find connections between articles describing PDB structures using MeSH termsPDB StatisticsPDB data distribution, archive growth, and moreEPPIC Biological AssembliesEPPIC (Evolutionary Protein-Protein Interface Classifier) finds biological interfaces from crystal contactsExternal Data and Resources• Integrated Resources • Additional Resources Coordinates and Experimental DataEnter PDB IDs to download multiple files in batches containing one or more file formatsSequencesEnter PDB IDs to download sequences in FASTA formatLigandsEnter the chemical component IDs to download SDF files with ligand coordinatesFile Download ServicesDownload PDB archive or other related data filesWeb ServicesThe Data API and Search API are the two main APIs that power rcsb.orgTraining, Outreach, and Education resources to build and support the broad PDB user communityTraining CoursesLearn to effectively use tools for deposition, searching, analysis, and visualization of PDB dataGuide to PDB DataGuided reference for exploration and interpretation of PDB entriesMolecule of the MonthAccounts of selected molecules from the PDBEducational ResourcesResources promoting exploration in the world of proteins and nucleic acidsCurriculaAuthentic, hands-on teaching materials, individual and group activitiesBrowseBrowse all PDB-101 resources by biological themeNewsLearn about educational offerings and outreach eventsSciArt GalleriesMolecular art for downloading and printing by• Irving Geis • David Goodsell Latest EntriesAs ofTue Jul 23 20248VKESARS-CoV-2 spike omicron (BA.1) RBD ectodomain dimer-of-trimers in complex with SC27 Fabs8PROThe structure of nvBagel2 binding the P8W48O184 polyoxometalate8TGVCryoEM structure of Fab HC84.26-HCV E2 complex8RCCW-formate dehydrogenase from Desulfovibrio vulgaris - aerobic soaked with 48 bar CO2 for 1 min8U09Crystal structure of substrate-free SyoA8VQAPrefusion stabilized structure of the SARS-CoV-2 fusion machinery8R8M70S Escherichia coli ribosome with Paenilamicin B2 bound with hybrid A/P- and hybrid P/E-tRNA.8PT5ERK2 covelently bound to RU187 cyclohexenone based inhibitor9B9RCryo-EM structure of the ZBTB5 BTB domain filament9G35The HIV protease inhibitor lopinavir binding to the active site of Cryphonectria parasitica endothiapepsinFeatures & HighlightsMeet the RCSB PDB at ISMBJoin us for posters and presentations at the Conference on Intelligent Systems for Molecular Biology. 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MTZ files available from EDMAPS.rcsb.org will be discontinued in the Fall. Join us for a Virtual Office Hour to learn more about this transition, and how you can generate the data you need.Notice: NGL Viewer DeprecationAs of June 28, 2024, the NGL molecular viewer will be removed from RCSB.org. Users are encouraged to use Mol* for 3D visualization.Switch from MMTF to BCIFAs of July 2, 2024, RCSB PDB will no longer serve PDB data in the MMTF compression format. Users should switch to BCIF.Announcement: EDMAPS.rcsb.org ShutdownDSN6 formatted map files will not be offered after June 28, 2024. MTZ files available from EDMAPS.rcsb.org will be discontinued in the Fall. 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Users should switch to BCIF.» 06/30/2024Notice: NGL Viewer DeprecationAs of June 28, 2024, the NGL molecular viewer will be removed from RCSB.org. Users are encouraged to use Mol* for 3D visualization.» 06/27/2024Paper Published: Cryo-EM Ligand Modeling ChallengeResults of the 2021 Challenge and recommendations for best practices for assessing cryo-EM structures of liganded macromolecules reported at near-atomic resolution have been published in Nature Methods» 06/25/2024Announcing the New PDBx/mmCIF User GuideA new User Guide provides explanations and examples of essential PDBx/mmCIF file format records. Feedback is welcome via a brief survey.» 06/18/2024Paper Published on NextGen ArchiveRead how the NextGen Archive provides centralized access to integrated annotations and enriched structural information» 06/16/2024Molecule of the MonthRibosome DiversityBy comparing the structures of ribosomes from different organisms, we can explore the evolution of life.Read MoreQuarterly News (see archive)Issue 102 - June 2024New Training Opportunities; A Biocurator Milestone; Building 3D Paper Models of Protein Domains; and more.Cell signaling through Rube Goldberg Machines by Dr. Fatahiya Kashif, Federal Medical College, Islamabad, Pakistan Winter 2024 Issue Fall 2023 IssueSummer 2023 Issue Spring 2023 IssueAnnual Reports2023 Annual ReportDownload the 2023 Annual Report (PDF) for an overview of recent activities, including RCSB PDB APIs and pairwise alignment tools. 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RCSB Protein Data Bank (RCSB PDB) enables breakthroughs in science and education by providing access and tools for exploration, visualization, and analysis of:
Experimentally-determined 3D structures from the Protein Data Bank (PDB) archive
Computed Structure Models (CSM) from AlphaFold DB and ModelArchive
These data can be explored in context of external annotations providing a structural view of biology.
Prepare data in PDBx/mmCIF format
Extract data from structure determination programs
Convert structure factor files among various formats
Search the Chemical Component Dictionary for the IDs of released ligands
Translate data between file formats and more
Check your X-ray, NMR, or EM structures before depositing-standalone server
Validate your structures via programmatic remote access before deposition
Instructions to journal editors
Recommendations from method-specific Validation Task Forces
Deposit 3D macromolecular structure data to the PDB
Deposit structural models obtained using integrative hybrid methods
Complex boolean queries with values for a wide range of structure attributes
Find similar protein and nucleic acid sequences using the mmseqs2 method
Search protein structures by global shape similarity
Find ligands bound to macromolecules by SMILES String, InChI, or Chemical Formula
Draw a molecule and use the SMILES or InChI string to search for molecules in the CCD
PDB entries in context of annotations by various ontologies and hierarchical classification schemes
Search entries released since last Tuesday
Search entries that are being processed, on hold waiting for release, or have been withdrawn
PDB data distribution, archive growth, and more
3D visualization for PDB structures and ligand binding sites. Access from each structure summary page.
Graphical summaries of protein features and their relationships with UniProtKB entries. Access from each structure summary page.
Graphical summaries of the correspondences between PDB entity sequences and genomes. Access from each structure summary page.
Calculate pairwise structure alignments using various methods
Explore tools that display global, local, and helical symmetry among subunits
The slider graphic compares important global quality indicators for a given structure with the PDB archive
Explore conservation and trends in the structure properties, features, and functions
Find connections between articles describing PDB structures using MeSH terms
EPPIC (Evolutionary Protein-Protein Interface Classifier) finds biological interfaces from crystal contacts
Enter PDB IDs to download multiple files in batches containing one or more file formats
Enter PDB IDs to download sequences in FASTA format
Enter the chemical component IDs to download SDF files with ligand coordinates
Download PDB archive or other related data files
The Data API and Search API are the two main APIs that power rcsb.org
Training, Outreach, and Education resources to build and support the broad PDB user community
Learn to effectively use tools for deposition, searching, analysis, and visualization of PDB data
Guided reference for exploration and interpretation of PDB entries
Accounts of selected molecules from the PDB
Resources promoting exploration in the world of proteins and nucleic acids
Authentic, hands-on teaching materials, individual and group activities
Browse all PDB-101 resources by biological theme
Learn about educational offerings and outreach events
Molecular art for downloading and printing by
Join us for posters and presentations at the Conference on Intelligent Systems for Molecular Biology. Interested in joining our team? Talk to us to learn more.
Interested in learning how to search for certain structures programmatically? Join us for a virtual Office Hour. Bring you questions about RCSB PDB APIs.
Join us for Teaching enzymology with the Protein Data Bank: from pandemic to Paxlovid on July 30.
This free virtual course will introduce life scientists to the power and flexibility of Python Scripting for Molecular Docking on July 18, 2024
DSN6 formatted map files will not be offered after June 28, 2024. MTZ files available from EDMAPS.rcsb.org will be discontinued in the Fall. Join us for a Virtual Office Hour to learn more about this transition, and how you can generate the data you need.
As of June 28, 2024, the NGL molecular viewer will be removed from RCSB.org. Users are encouraged to use Mol* for 3D visualization.
As of July 2, 2024, RCSB PDB will no longer serve PDB data in the MMTF compression format. Users should switch to BCIF.
DSN6 formatted map files will not be offered after June 28, 2024. MTZ files available from EDMAPS.rcsb.org will be discontinued in the Fall. Join us for a Virtual Office Hour to learn more about this transition.
Join us on May 14 to learn about primary PDB structure quality metrics, including those in the validation slider graphic; how PDB structure quality varies across the archive; and identify good structure(s) for research from RCSB.org
By comparing the structures of ribosomes from different organisms, we can explore the evolution of life.
New Training Opportunities; A Biocurator Milestone; Building 3D Paper Models of Protein Domains; and more.
Cell signaling through Rube Goldberg Machines by Dr. Fatahiya Kashif, Federal Medical College, Islamabad, Pakistan
Download the 2023 Annual Report (PDF) for an overview of recent activities, including RCSB PDB APIs and pairwise alignment tools.
Annual Report Archive
RCSB PDB (citation) is hosted by
RCSB PDB is a member of the