Efficient Chemical Synthesis of AppDNA by Adenylation of Immobilized DNA-5′-monophosphate
作者:Qing Dai、Mridusmitas Saikia、Nan-Sheng Li、Tao Pan、Joseph A. Piccirilli
DOI:10.1021/ol802815g
日期:2009.3.5
AppDNA is an intermediate in enzyme-catalyzed DNA ligation reactions, and its efficient enzymatic synthesis requires a donor-template duplex of at least 11 base pairs In length. An efficient chemical synthesis of AppDNA with the coupling of an adenosine 5'-phosphorimidazolidate to an Immobilized DNA-S'-monophosphate as the key step is described. The adenylation efficiencies of DNA-5'-monophosphate were excellent for oligonucleotides containing less than 11 nucleotides and at least 50% for oligonucleotides containing 15-25 nucleotides.