Cloning, OrganismNuclear Transfer TechniquesClone CellsCloning, MolecularMolecular Sequence DataBase SequenceAmino Acid SequenceDNA, ComplementarySequence Homology, Amino AcidGenes, BacterialEscherichia coliSequence AlignmentSequence Homology, Nucleic AcidSequence Analysis, DNADNAPlasmidsRNA, MessengerRestriction MappingNucleic Acid HybridizationGenesRecombinant ProteinsPolymerase Chain ReactionChromosome MappingBlotting, SouthernDNA Restriction EnzymesDNA, BacterialBlotting, NorthernGene ExpressionCell LineDNA, RecombinantDNA PrimersGene LibraryPhylogenyTranscription, GeneticOpen Reading FramesMutationGenomic LibraryBacterial ProteinsGenetic Complementation Test