Enzymatic synthesis of a segment of bacteriophage Qβ coat protein gene

Yo Kikuchi*, Kenji Sakaguchi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


The oligoribonucleotide, A-A-A-C-U-U-U-Gp, constituting a segment of RNA bacteriophage Qβ coat protein gene was efficiently synthesized at a milligram scale by a combination of enzymatic methods using bacteriophage T4 RNA ligase and the thermophilic polynucleotide phosphorylase. A-A-A-Cp was synthesized from A-A-A and pCp by the newly developed mononucleotide addition method using T4 RNA ligase in a yield of 83%, followed by dephosphorylation with bacterial alkaline phosphatase to obtain A-A-A-C. pU-U-U-Gp was synthesized from pU-U-U and GDP by the simultaneous action of polynucleotide phosphorylase and RNase T1 in a yield of 32%. Finaly, the two oligonucleotides (A-A-A-C and pU-U-U-Gp) were ligated with T4 RNA ligase and the octanucleotide, A-A-A-C-U-U-U-Gp, was obtained in a yield of 85%.

Original languageEnglish
Pages (from-to)591-598
Number of pages8
JournalNucleic Acids Research
Issue number2
Publication statusPublished - 1978 Feb
Externally publishedYes

ASJC Scopus subject areas

  • Statistics, Probability and Uncertainty
  • Applied Mathematics
  • Health, Toxicology and Mutagenesis
  • Toxicology
  • Genetics(clinical)
  • Genetics


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