Ikehara M, Tanaka S, Fukui T, Ohtsuka E. Polynucleotides. XLII1. Limited addition of 2'O-onitrobenzyl nucleotides to the 3'-end of ribooligonucleotide with polynucleotide phosphorylase.
Nucleic Acids Res 1976;
3:3203-11. [PMID:
1005116 PMCID:
PMC343163 DOI:
10.1093/nar/3.11.3203]
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Abstract
2'-O-o-Nitrobenzyluridine, -cytidine and -adenosine were phosphorylated with phosphoryl chloride to the corresponding 5'-phosphates and led to 5'-diphosphates by the method of Moffatt and Khorana. These 2'-O-oNB-nucleoside 5'-diphosphates were incubated with a primer CpApA and polynucleotide phosphorylase in the presence of Mn2+. Tetranucleotides CpApApU, CpApApC and CpApApA were obtained after photosensitive removal of oNB groups in yields of 54-70%.
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