Transcription Factor CHOPCrystallography, X-RayCrystallographyModels, MolecularAmino Acid SequenceMolecular Sequence DataStructural Homology, ProteinSequence Homology, Amino AcidProtein ConformationProtein Structure, TertiaryBinding SitesBase SequenceSequence Homology, Nucleic AcidProtein Structure, SecondarySequence AlignmentProtein BindingCrystallizationCloning, MolecularCatalytic DomainBacterial ProteinsStructure-Activity RelationshipNuclear Magnetic Resonance, BiomolecularCryoelectron MicroscopyEscherichia coliMolecular StructureProteinsX-Ray DiffractionSynchrotronsProtein FoldingDimerizationLigandsMutagenesis, Site-DirectedMagnetic Resonance SpectroscopySubstrate SpecificityRecombinant ProteinsMolecular ConformationKineticsProtein Structure, QuaternaryCatalysisPeptide FragmentsConserved SequenceMutationThermotoga maritimaDNAElectronsMacromolecular SubstancesNucleic Acid ConformationHydrogen BondingSpecies SpecificityMolecular WeightProtein MultimerizationPeptidesStatic ElectricityMembrane ProteinsElectrophoresis, Polyacrylamide GelAmino Acid SubstitutionCarrier ProteinsDNA, ComplementaryModels, ChemicalEscherichia coli ProteinsNeutron DiffractionRNACross ReactionsTrypsinsrc Homology DomainsCattleProtein Interaction Domains and MotifsCysteineAmino Acid MotifsCell LinePhotoreceptors, MicrobialScattering, Small AngleSaccharomyces cerevisiaeCircular DichroismDNA PrimersSequence HomologyDNA-Binding ProteinsPlasmidsAmino AcidsRNA, MessengerMutagenesisHydrolysisArchaeal ProteinsNegative StainingEpitopesRestriction MappingSequence Analysis, ProteinGenes, BacterialX-RaysGenesTranscription, GeneticPhylogenyPlant ProteinsCell MembraneMultigene FamilyRabbitsNucleic Acid HybridizationRecombinant Fusion ProteinsBinding, CompetitiveDisulfides