منابع مشابه
Enteroviral Ribonucleic Acid I. Recovery from Virus and Assimilation by Cells* by John
Recognition of the infectivity of ribonucleic acid (RNA) of tobacco mosaic (1, 2) and of animal virus (3) initiated investigation of the molecular aspects of viral reproduction. Study of replication of infectious RNA depends upon employment of efficient and reproducible biological assay procedures. Reception of viral genetic material normally depends upon specific interaction of cellular and vi...
متن کاملRibonucleic acid metabolism in lymphocytes stimulated by phytohemagglutinin. II. Rapidly synthesized ribonucleic acid and te production of ribosomal ribonucleic acid.
Human peripheral lymphocytes are stimulated to change, in vitro, from a resting state to one of progressive enlargement, culminating in mitosis, by treatment with Phaseolus vulgaris phytohemagglutinin. The sedimentation characteristics and fate of rapidly synthesized RNA have been studied in this system after 20 hours of stimulation with phytohemagglutinin, a time when RNA synthesis has been ac...
متن کاملThe Enzymatic Methylation of Ribonucleic Acid and Deoxyribonucleic Acid. Vii. the Methylation of Ribonucleic Acid.
Preceding publications from this laboratory have shown that the methylation of soluble ribonucleic acid is catalyzed by at least six discrete enzymes (l-3) which have been purified from extracts of Escherichia coli W. Two of these enzyme preparations catalyze the formation of l-methylguanine residues in SRNA,1 while a third produces 7-methylguanine. The others catalyze the methylation of uracil...
متن کاملSpecies Specificity of Amino Acid Acceptor Ribonucleic Acid and Aminoacyl Soluble Ribonucleic Acid Synthetases.
Several investigators have reported that the activation of amino acids for protein synthesis, i.e. the incorporation of amino acids into soluble ribonucleic acids, is dependent upon the source of both the aminoacyl S-RNA’ synthetases and the S-RNA itself. For example, Rendi and Ochoa (1) reported that aminoacyl S-RNA synthetases from Escherichia coli could not incorporate leucine into yeast or ...
متن کاملThe Aminoacyl Ribonucleic Acid Synthetases
Threonyl ribonucleic acid synthetase was purified 400-fold from rat liver. During stepwise chromatography on diethylaminoethyl cellulose, two fractions with this enzymatic activity were observed. The separated fractions give distinct elution patterns on rechromatography on the same ion exchanger. Threonyladenylate-enzyme complex prepared with 14Cthreonine and 3H-adenosine triphosphate shows a s...
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ژورنال
عنوان ژورنال: Journal of Experimental Medicine
سال: 1960
ISSN: 1540-9538,0022-1007
DOI: 10.1084/jem.112.5.821