title: Nature of transforming deoxyribonucleic acid in calcium-treated Escherichia coli.
abstract: A study of the reactivation of ultraviolet-irradiated plasmid and phage deoxyribonucleic acid molecules after transformation into Escherichia coli strains indicated that, when double-stranded deoxyribonucleic acid was used as the donor species, it was taken up without conversion to the single-standed form.
mesh_terms: D002118:Calcium / Q000494:pharmacology; D004260:DNA Repair; D004269:DNA, Bacterial / Q000235:genetics* / Q000528:radiation effects; D004270:DNA, Circular / Q000235:genetics*; D004277:DNA, Single-Stranded / Q000235:genetics; D004926:Escherichia coli / Q000187:drug effects / Q000235:genetics*; D010957:Plasmids; D014169:Transformation, Bacterial; D014466:Ultraviolet Rays
chemical_list: D004269:DNA, Bacterial; D004270:DNA, Circular; D004277:DNA, Single-Stranded; D002118:Calcium