PMID: 376519Jul 10, 1979Paper

Total synthesis of a tyrosine suppressor tRNA gene. XV. Synthesis of the promoter region.

The Journal of Biological Chemistry
T SekiyaK E Norris

Abstract

By use of polynucleotide kinase and polynucleotide ligase, the 10 deoxyoligonucleotide segments, whose syntheses have been described in accompanying papers, have been joined to form the 62-nucleotide-long DNA corresponding to the promoter region of an Escherichia coli suppressor tRNA gene. The following sequence in the joining reactions was used to obtain error-free and optimal yields of the products: 1) joining of Segment P-1 to P-3 in the presence of Segment P-2; 2) joining of Segments P-4 to P-7 to form Duplex [P4-7]; 3) joining of Segments P-8 to P-10 to Duplex [P4-7] to form Duplex [P4-10]; and finally, 4) joining of P-(1 + 3) and P-2 to Duplex [P4-10] to form the total promoter Duplex [P].

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