Methylation patterns of mycoplasma transfer and ribosomal ribonucleic acid
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چکیده
منابع مشابه
Ribosome development and the methylation of ribosomal ribonucleic acid.
Immature ribonucleoprotein particles accumulate in amino acid-starved cells of a relaxed mutant of Escherichia coli. The ribonucleic acid (RNA) of these particles is nonmethylated in cells starved for methionine. However, in bacteria starved for arginine, lysine, or histidine, the RNA of these particles is one-half methylated. The relationship of submethylation to a structural alteration in the...
متن کاملThe postnatal methylation of transfer ribonucleic acid in brain. Evidence for the methylation of precursor transfer ribonucleic acid.
Incubation of 3-day-old rat brain with L-[methyl-3H]methionine resulted in the rapid labeling of low-molecular-weight cytoplasmic RNA. Electrophoresis in 15% polyacrylamide gels provided evidence for the methylation of precursor tRNA molecules, and high-performance liquid chromatography demonstrated N2-methylguanine to be the predominant methylated base formed during the first 2 min of labelling.
متن کاملIncorporation of cytokinin N-benzyladenine into tobacco callus transfer ribonucleic Acid and ribosomal ribonucleic Acid preparations.
The incorporation of the cytokinin N(6)-benzyladenine into tobacco (Nicotiana tabacum) callus tRNA and rRNA preparations isolated from tissue grown on medium containing either N(6)-benzyladenine-8-(14)C or N(6)-benzyladenine-8-(14)C: benzene-(3)H(G) has been examined. N(6)-benzyladenine was incorporated into both the tRNA and rRNA preparations as the intact base. Over 90% of the radioactive N(6...
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 کاملAn evolutionary study of the methylation of transfer and ribosomal ribonucleic acid in prokaryote and eukaryote organisms.
The methylated bases and nucleosides of transfer RNA and ribosomal RNA isolated from a number of eukaryote and prokaryote organisms were compared. Of the many different types of methylated bases and nucleosides found, only certain ones ever appeared in each type of methylated RNA; thus, the methylation of tRNA and both types of rRNA was a highly specific process. In addition, in all cells teste...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1980
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.144.3.991-998.1980