RT Journal Article SR Electronic T1 Release of Free Bases from Deoxyribonucleic Acid after Reaction with Bleomycin JF Molecular Pharmacology JO Mol Pharmacol FD American Society for Pharmacology and Experimental Therapeutics SP 531 OP 537 VO 8 IS 5 A1 CHARLES W. HAIDLE A1 K. KAY WEISS A1 M. TIEN KUO YR 1972 UL http://molpharm.aspetjournals.org/content/8/5/531.abstract AB Labeled free bases could be detected chromatographically after reaction of deoxyribonucleic acid with high concentrations of the antibiotic bleomycin. Thymine, adenine, guanine, and cytosine were released from DNAs previously labeled in the base moiety with each of the four bases. No detectable amounts of nucleosides, nucleotides, deoxyribose, deoxyribose phosphate, or inorganic phosphate were released. ACKNOWLEDGMENTS The authors with to thank Mrs. Elsie Jackson for her excellent technical assistance, and to express appreciation to Dr. L. Daniel Inners for his assistance in the molecular weight determination.