ArchaeaDNA, ArchaealRNA, ArchaealArchaeal ProteinsPhylogenyMolecular Sequence DataRNA, Ribosomal, 16SDNA, RibosomalGenes, ArchaealGenome, ArchaealSequence Homology, Amino AcidCrenarchaeotaSequence AlignmentGene Expression Regulation, ArchaealHaloferax volcaniiMethanococcusProtein Interaction Domains and MotifsMethanesrc Homology DomainsBacteriaProtein ConformationRecombinant Fusion ProteinsBinding SitesSulfolobusProtein BindingProtein Structure, SecondaryMethanobacteriaceaeCloning, MolecularRecombinant ProteinsCrystallography, X-RayBase SequenceModels, MolecularConserved SequenceMethanosarcinaEuryarchaeotaEvolution, MolecularMutagenesis, Site-DirectedEscherichia coliBacterial ProteinsAmino Acid MotifsNitrificationMethanobacteriumDimerizationPDZ DomainsDesulfurococcaceaeHalobacterialesMethanosarcinalesDNA-Binding ProteinsStructure-Activity RelationshipHaloferaxPyrococcusSulfolobus acidocaldariusPyrococcus abyssiMethanosarcinaceaeMembrane ProteinsSequence Analysis, DNAEukaryotic CellsArchaeoglobus fulgidusSulfolobus solfataricusTranscription FactorsAmino Acid SequencePyrococcus furiosusChromosomes, ArchaealMethanococcalesSequence DeletionProtein FoldingGeologic SedimentsDNA PrimersKineticsCarrier ProteinsThermococcusTransfectionSeawaterCell MembranePeptide FragmentsHalobacteriaceaeDNAMethanosarcina barkeriProtein Structure, QuaternaryEukaryotaAmmoniaArchaeal VirusesMutagenesisSignal TransductionPlasmidsTranscription, GeneticDNA, ComplementaryProkaryotic CellsThermoplasmaAmino Acid SubstitutionTwo-Hybrid System TechniquesSaccharomyces cerevisiaeMutationPhosphorylationProtein MultimerizationGlyceryl EthersNuclear ProteinsCatalysisLigandsEscherichia coli Proteins