title: Does the insertion element IS1 transpose preferentially into A+T-rich DNA segments?
abstract: IS1-mediated insertion and deletion formation occur preferentially into A+T-rich regions of DNA of bacteriophate P1 and of the r-determinant of the R plasmid NR1. The significance of this correlation is discussed in view of other published data.
mesh_terms: D001483:Base Sequence; D003090:Coliphages / Q000235:genetics*; D004251:DNA Transposable Elements; D004269:DNA, Bacterial / Q000032:analysis; D004279:DNA, Viral / Q000032:analysis*; D004926:Escherichia coli / Q000235:genetics; D010957:Plasmids; D012093:Replicon
chemical_list: D004251:DNA Transposable Elements; D004269:DNA, Bacterial; D004279:DNA, Viral