Abstract
Abstract The effect of 5′-phosphorylation at nicks on DNA stabilization was measured through the formation of DNA multiassemblies consisting of 40-mer half-sliding complementary oligonucleotides, which had overlapping complementary 20-mer base sequences. 5′-Phosphorylated oligonucleotides formed longer DNA multiassemblies than 5′-hydroxylated ones. This result indicated that the 5′-phosphorylated sticky ends contribute to the stabilization of the DNA association due to the hydrogen bonds between 3′-hydroxy groups and 5′-phosphate groups at the nick positions.
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