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Total synthesis of the structural gene for the precursor of a tyrosine suppressor transfer RNA from Escherichia coli. 10. Enzymatic joining of chemically synthesized segments to form the DNA duplex corresponding to the nucleotide sequence 86-126. 1976

M H Caruthers, and R Kleppe, and K Kleppe, and H G Khorana

The polynucleotide ligase-catalyzed joining of the eight chemically synthesized deoxypolynucleotides (segments 19 to 26), comprising the nucleotide sequence 86-126 of the DNA corresponding to the Escherichia coli tyrosine tRNA precursor has been investigated. Joining was studied using various combinations of 3, 4, or larger number of segments at a time. The extent of joining was in general low (0 to 40%) for the three-component as well as for the four-component systems. Joining of the five- and six- component systems was more satisfactory with yields from 25 to about 60%. The three duplexes [IVa] to [IVc]were prepared in single step reactions in yields of about 50% and were characterized. Duplex [IVd] could not be prepared in a single step reaction because of the failure of 5'-phosphorylated segment 26 to join to the rest of the duplex. Using a carefully annealed mixture of segments 24, 25, and phosphorylated segment 26, the joining of the latter to segment 24 could be realized in about 25% yield, much activated intermediate being concurrently present.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D009690 Nucleic Acid Conformation The spatial arrangement of the atoms of a nucleic acid or polynucleotide that results in its characteristic 3-dimensional shape. DNA Conformation,RNA Conformation,Conformation, DNA,Conformation, Nucleic Acid,Conformation, RNA,Conformations, DNA,Conformations, Nucleic Acid,Conformations, RNA,DNA Conformations,Nucleic Acid Conformations,RNA Conformations
D009838 Oligodeoxyribonucleotides A group of deoxyribonucleotides (up to 12) in which the phosphate residues of each deoxyribonucleotide act as bridges in forming diester linkages between the deoxyribose moieties. Oligodeoxynucleotide,Oligodeoxyribonucleotide,Oligodeoxynucleotides
D010744 Phosphoric Monoester Hydrolases A group of hydrolases which catalyze the hydrolysis of monophosphoric esters with the production of one mole of orthophosphate. Phosphatase,Phosphatases,Phosphohydrolase,Phosphohydrolases,Phosphomonoesterase,Phosphomonoesterases,Phosphoric Monoester Hydrolase,Hydrolase, Phosphoric Monoester,Hydrolases, Phosphoric Monoester,Monoester Hydrolase, Phosphoric
D011089 Polydeoxyribonucleotides A group of 13 or more deoxyribonucleotides in which the phosphate residues of each deoxyribonucleotide act as bridges in forming diester linkages between the deoxyribose moieties. Polydeoxyribonucleotide
D011116 Polynucleotide 5'-Hydroxyl-Kinase An enzyme that catalyzes the transfer of a phosphate group to the 5'-terminal hydroxyl groups of DNA and RNA. EC 2.7.1.78. Polynucleotide Hydroxylkinase,Polynucleotide Kinase,5'-Hydroxylpolynucleotide Kinase,DNA 5'-Hydroxylkinase,DNA Kinase,Polynucleotide 5'-Hydroxyl Kinase,Polynucleotide Hydroxykinase,5' Hydroxylpolynucleotide Kinase,5'-Hydroxyl Kinase, Polynucleotide,5'-Hydroxyl-Kinase, Polynucleotide,5'-Hydroxylkinase, DNA,DNA 5' Hydroxylkinase,Hydroxykinase, Polynucleotide,Hydroxylkinase, Polynucleotide,Kinase, 5'-Hydroxylpolynucleotide,Kinase, DNA,Kinase, Polynucleotide,Kinase, Polynucleotide 5'-Hydroxyl,Polynucleotide 5' Hydroxyl Kinase
D011118 Polynucleotide Ligases Catalyze the joining of preformed ribonucleotides or deoxyribonucleotides in phosphodiester linkage during genetic processes. EC 6.5.1. Polynucleotide Synthetases,Ligases, Polynucleotide,Synthetases, Polynucleotide
D004269 DNA, Bacterial Deoxyribonucleic acid that makes up the genetic material of bacteria. Bacterial DNA
D004926 Escherichia coli A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc. Alkalescens-Dispar Group,Bacillus coli,Bacterium coli,Bacterium coli commune,Diffusely Adherent Escherichia coli,E coli,EAggEC,Enteroaggregative Escherichia coli,Enterococcus coli,Diffusely Adherent E. coli,Enteroaggregative E. coli,Enteroinvasive E. coli,Enteroinvasive Escherichia coli
D005796 Genes A category of nucleic acid sequences that function as units of heredity and which code for the basic instructions for the development, reproduction, and maintenance of organisms. Cistron,Gene,Genetic Materials,Cistrons,Genetic Material,Material, Genetic,Materials, Genetic

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