Pol1 Transcription Initiation Complex ProteinsRNA Polymerase IBinding SitesNucleolus Organizer RegionCell NucleolusRNA, RibosomalDNA, RibosomalTranscription, GeneticTranscription FactorsDNA-Binding ProteinsProtein BindingPromoter Regions, GeneticMolecular Sequence DataHigh Mobility Group ProteinsTATA-Box Binding ProteinBase SequenceHeLa CellsCell NucleusNuclear ProteinsAmino Acid SequenceBinding, CompetitiveModels, MolecularKineticsProtein ConformationMutagenesis, Site-DirectedProtein Structure, TertiaryCell LineLigandsMutationDNAStructure-Activity RelationshipRecombinant ProteinsEscherichia coli