DNA hydrolysis by rare-earth metal ions. |
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| Authors: | Y Matsumoto M Komiyama |
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| Affiliation: | Institute of Materials Science, University of Tsukuba, Ibaraki, Japan. |
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| Abstract: | Plasmid DNA and poly(dA) are cleaved by rare-earth(III) ions at pH 7-8 and 50 degrees C. The cleavage has been confirmed by prompt conversion of supercoiled pBR 322 plasmid DNA (Form I) to a relaxed Form II. Furthermore, degradation of poly(dA) to shorter oligonucleotides is clearly evidenced by HPLC. A possible application of the metal ions (and their complexes) to artificial nucleases is indicated. |
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