Cloning, OrganismNuclear Transfer TechniquesClone CellsCloning, MolecularMolecular Sequence DataBase SequenceAmino Acid SequenceDNA, ComplementarySequence Homology, Amino AcidDNASequence Homology, Nucleic AcidSequence Analysis, DNASequence AlignmentRNA, MessengerEscherichia coliGenes, BacterialPolymerase Chain ReactionPlasmidsChromosome MappingBlotting, SouthernBlotting, NorthernNucleic Acid HybridizationGenesRestriction MappingRecombinant Proteins