title: Bidirectional polarity of IS2 elements and the polar effect of an IS5 insertion in the argECBH gene cluster of Escherichia coli [proceedings].
mesh_terms: D001120:Arginine / Q000235:genetics*; D001483:Base Sequence; D004269:DNA, Bacterial / Q000235:genetics; D004926:Escherichia coli / Q000235:genetics*; D008040:Genetic Linkage; D009154:Mutation; D009876:Operon; D011995:Recombination, Genetic; D014158:Transcription, Genetic
chemical_list: D004269:DNA, Bacterial; D001120:Arginine