Polynucleotide Ligase-Catalyzed Joining of Deoxyribo-oligonucleotides on Ribopolynucleotide Templates and of Ribo-oligonucleotides on Deoxyribopolynucleotide Templates*†

AUTOR(ES)
RESUMO

T4 polynucleotide ligase efficiently catalyzes the head-to-tail joining of the ribo-oligoadenylates, r-(pA)8 and r-(pA)10, in the presence of high molecular weight deoxypolythymidylate. The enzyme also catalyzes the joining of deoxy-oligothymidylates, e.g., d-(pT)10, in the presence of ribopolyadenylate. The enzyme failed to bring about the joining of r-(pA)10 when poly r-U was used as the template, although a slow formation of the expected activated intermediate from r-(pA)10 was detected.

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