Biological role of transfer ribonucleic acid molecules
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چکیده
منابع مشابه
Role of isoleucyl-transfer ribonucleic acid synthetase in ribonucleic acid synthesis and enzyme repression in yeast.
Temperature-sensitive mutations in the isoleucyl-transfer ribonucleic acid (tRNA) synthetase of yeast, ilS(-)1-1 and ilS(-)1-2, were used to examine the role of aminoacyl-tRNA synthetase enzymes in the regulation of ribonucleic acid (RNA) synthesis and enzyme synthesis in a eucaryotic organism. At the permissive temperature, 70 to 100% of the intracellular isoleucyl-tRNA was charged in mutants ...
متن کاملChicken liver transfer ribonucleic acid: heterologous interaction of alanine transfer ribonucleic acid with yeast.
We are attempting to determine the nature of specific RNA-protein interactions by study of tRNA charging by homologous and heterologous enzymes. tRNAklatRNARNA3 t were prepared by phenoxyacetylation of alanyl-tRNA and separation on benzoylated DEAE-cellulose (Gillam, Blew, Warrington, von Tigerstrom & Tener, 1968). A partially purified alanyl-tRNA synthetase from yeast forms alanyl-tRNAAla tand...
متن کاملAffinity chromatography of aminoacyl-transfer ribonucleic acid synthetases. Cognate transfer ribonucleic acid as a ligand.
The use of tRNA affinity columns for the purification of aminoacyl-tRNA synthetases was investigated. A purification method for valyl-tRNA synthetase from Bacillus stearothermophilus is described that uses two affinity columns, one containing the pure cognate tRNA, and the other containing all tRNA species except the cognate tRNA. A method for the rapid preparation of the two columns was develo...
متن کاملThe activation of arginyl transfer ribonucleic acid synthetase by transfer ribonucleic acid.
The arginine-activating enzyme of Escherichk coli requires transfer ribonucleic acid (tRNA) for catalysis of the ATP-pyrophosphate exchange reaction. Only the specific arginiie-accepting tRNA is effective5 and the terminal adenylic acid residue is essential for the reaction. A previously described isotope-trapping experiment led to the suggestion that an arginyl-tRNA ester was not formed during...
متن کاملReaction of ribosome-bound peptidyl transfer ribonucleic acid with aminoacyl transfer ribonucleic acid or puromycin.
Polylysyl transfer ribonucleic acid, free of lysyl-tRNA, has been isolated and its characteristics in an Escherichiu cofi polypeptide-synthesizing system in vitro have been studied. Ribosomes obtained from frozen E. coli cells were washed in 0.5 M NH&l and assayed at MgCla concentrations of at least 0.01 M. Binding of this peptidyl-tRNA to ribosomes occurs in the presence of templates containin...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1969
ISSN: 0306-3283
DOI: 10.1042/bj1140028pa