Archaeal ProteinsRNA, ArchaealDNA, ArchaealGenes, ArchaealGenome, ArchaealGenomeArchaeaGenome, BacterialGenome, ViralArchaeal VirusesGene Expression Regulation, ArchaealGenome, PlantGenome, HumanPhylogenySulfolobusGenome, MitochondrialSequence Analysis, DNAMethanobacteriaceaeMethanococcalesCrenarchaeotaChromosomes, ArchaealMolecular Sequence DataGenome, FungalEvolution, MolecularBase SequenceMethanococcusSulfolobus solfataricusGenome SizeHaloferax volcaniiPyrococcus furiosusRibosome Subunits, Large, ArchaealAmino Acid SequenceSequence AlignmentGenomicsPyrococcus abyssiGenome, InsectGenome, ProtozoanArchaeoglobus fulgidusMethanosarcinaBacteriaSulfolobus acidocaldariusPyrococcus horikoshiiOpen Reading FramesGenome, ChloroplastAcidianusChromosome MappingSequence Homology, Amino AcidMethaneRNA, Ribosomal, 16SNanoarchaeotaPyrococcusEuryarchaeotaGene OrderThermoplasmaConserved SequenceGene Transfer, HorizontalComputational BiologySyntenyCloning, MolecularSpecies SpecificityGlyceryl EthersGenetic VariationEukaryotic CellsMultigene FamilyGeologic SedimentsGenome, HelminthModels, MolecularModels, GeneticThermoproteaceaeDNA, BacterialGenome, PlastidDatabases, GeneticMethanobacteriumHuman Genome ProjectDNA, ViralNucleic Acid ConformationSequence Homology, Nucleic AcidMethanosarcinalesRNA, TransferDNA, RibosomalSeawaterMethanobacterialesBase CompositionTranscription, GeneticBacterial ProteinsMutationRecombination, GeneticRibosome Subunits, Small, ArchaealMolecular Sequence AnnotationDesulfurococcaceaeEukaryotaGenes, BacterialGene DuplicationSoftwareProtein Structure, TertiaryEscherichia coliPolymerase Chain ReactionRepetitive Sequences, Nucleic AcidCrystallography, X-RaySulfolobales