Divalent Metal Ion-Mediated Phosphodiester Bond Formation from Adenosine-5′-phosphorimidazolide with Glycolic Acid or Lactic Acid in Aqueous Solution. A Nonenzymatic Model Reaction for Nucleotidyl Transfer
作者:Hiroaki Sawai
DOI:10.1246/bcsj.63.692
日期:1990.3
Some divalentmetal ions mediated in phosphodiester bond formation from adenosione-5′-phosphorimidazolide (ImpA) and glycolic acid or lactic acid giving glycolyl adenylate or lactyl adenylate. The effect of divalentmetal ions on this reaction was in the order: Pb2+>Ni2+>Co2+>Zn2+>Cu2+>Mn2+>Ca2+>Mg2+>none>Hg2+. The metal ions promoted the reaction orienting the substrates and increasing the nucleophilicity
The invention provides human adenylyl and guanylyl cyclases (ADGUC) and polynucleotides which identify and encode ADGUC. The invention also provides expression vectors, host cells, antibodies, agonists, and antagonists. The invention also provides methods for diagnosing, treating, or preventing disorders associated with aberrant expression of ADGUC.
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.
Synthesis of adenosine-5′-diphosphate using N,N'-acyldibenzotriazole
作者:P. P. Purygin、I. I. Kolodkina、E. P. Kon'kova、A. M. Yurkevich
DOI:10.1007/bf00765028
日期:1983.10
Christie et al., Journal of the Chemical Society, 1953, p. 2947,2948, 2949, 2952