EntityQ766195· pop 40· linked from 14,245 articlesProtein Data BankSign in to saveinternational open access database of protein and nucleic acid structuresConnectionscryogenic electron microscopyEntitydatabaseEntityGene OntologyEntityneutron diffractionEntityproteinEntityInternational Standard Book NumberEntityUTCEntityWikidataEntitymetallurgyEntityWayback MachineEntitydigital object identifierEntityURLEntityXMLEntitynucleic acidsEntitybioinformaticsEntitycrystallographyEntityelectron microscopeEntityNatureEntityQ180686Entitycrystal structureEntityCategoriesBioinformaticsComputational biologyCrystallographic databasesProtein databasesProtein structureScience and technology in the United States