Matsumoto Y, Komiyama M
Institute of Materials Science, University of Tsukuba, Ibaraki, Japan.
Nucleic Acids Symp Ser. 1992(27):33-4.
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.
