Results 311 to 320 of about 516,711 (334)
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Messenger RNA movement on the ribosome
Molecular Biology, 2007Recent X-ray and cryo-EM studies of 70S ribosome complexes containing different types of messenger RNAs (mRNA) and transfer RNA (tRNA) have been reviewed. Changes of the mRNA path on the ribosome at initiation and elongation states have been described.
Yusupova, G., Jenner, L., Yusupov, M.
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The size and the location of the ribosomal RNA segments in ribosomal precursor RNA of yeast
Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1971Abstract The order of the different segments of the 42-S ribosomal precursor RNA of yeast was investigated. For that purpose first the lengths of the rRNA stretches were measured. These were inferred from the relative amounts of oligonucleotides present in complete pancreatic ribonuclease digests of the two large rRNA components, and in this way were
R C, van den Bos, J, Retèl, R J, Planta
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Incorporating activity of ribosomes and integrity of ribosomal RNA
Biochemical and Biophysical Research Communications, 1970Abstract The interrelationship between the amino acid incorporating ability and the state of ribosomal-RNA in ribonuclease treated rat liver ribosomes was studied. It was shown that ribosomes containing no or only negligible amounts of 28 S ribosomal-RNA retained at least 30 per cent of their original incorporating activity /measured without addition
P, Hüvös, L, Vereczkey, O, Gaál
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Ribosomal RNA: the message or matrix for ribosomal proteins
Canadian Journal of Biochemistry, 1976The known nucleotide sequence of Escherichia coli 16S ribosomal RNA has been converted to amino acid sequences in all possible ways, and compared to known ribosomal protein sequences. The degree of similarity is precisely what one would expect by chance alone, providing additional evidence that ribosomal proteins cannot be coded for by ribosomal RNA.
D R, Miller +2 more
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Ribosomal and non-ribosomal RNA synthesis in vitro
Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1975The synthesis of total and ribosomal RNA using nucleoids of Escherichia coli as template was measured; of the total RNA synthesized by endogenous RNA polymerase which only completes chains, and added RNA polymerase which initiates new chains, 50-70 and 3-5%, repectively, was rRNA.
A J, Van Ooyen +3 more
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Assays for Ribosomal RNA Processing and Ribosome Assembly
Current Protocols in Cell Biology, 2008AbstractThe synthesis of ribosomes is a major metabolic activity critical for cell growth and homeostasis. Understanding the mechanisms of ribosome biogenesis has important implications for studying both protein synthesis and cell cycle control. This unit describes several techniques for the analysis of rRNA maturation and ribosome assembly adapted for
Dimitri G, Pestov +2 more
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Regulation of ribosomal RNA synthesis
Advances in Enzyme Regulation, 1969Abstract Levorphanol, a synthetic morphine, is known as a potent inhibitor for bacterial ribosomal RNA. Spermidine has an antagonistic effect on this inhibition. The authors applied Levorphanol on the RNA synthesis in liver cells. Levorphanol specifically inhibits the nucleolar ribosomal RNA synthesis.
S, Sakiyama, S, Usui, Y, Miura
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An RNA replisome as the ancestor of the ribosome
Journal of Molecular Evolution, 1991The ribosome is proposed to have evolved from an earlier RNA-replisome, which synthesized RNA. Ancestral tRNA molecules originally were loaded with trinucleotide sequences and donated them to growing RNA chains. The enzymatic addition of the C-C-A trinucleotide to presentday transfer RNA molecules is a carryover from this function.
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