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Ribosomal RNA precursors in plants
Journal of Molecular Biology, 1970Abstract A high molecular weight, rapidly-labelled ribosomal RNA precursor in the pearoot tip and in artichoke-tuber tissue is described. It has a molecular weight, determined by polyacrylamide-gel electrophoresis, of about 2.3 × 10 6 daltons. The pea precursor RNA consists of two components which can just be distinguished by gel electrophoresis ...
M.E. Rogers +2 more
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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
L. Vereczkey, P. Hüvös, O. Gaál
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On the biosynthesis of bacterial ribosomal RNA
Molecular Biology Reports, 1973By comparison of the fingerprints of 5S and 23S ribosomal RNAs from Bacillus licheniformis with that of the precursor of 23S ribosomal RNA, it can be shown that 5S RNA is not a part of the precursor of 23S ribosomal RNA.
T. J. Stoof, R. J. Planta
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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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Dynamics of Ribosomal RNA Structure
Journal of Biomolecular Structure and Dynamics, 1983The structural dynamics of ribosomal 5S RNAs have been investigated by probing single strandedness through enzymatic cleavage and chemical modification. This comparative study includes 5S rRNAs from E. coli, B. stearothermophilus, T. thermophilus, H. cutirubrum, spinach chloroplast, spinach cytomplasm, and Artemia salina. The structural studies support
Tomas Pieler +2 more
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1991
For a long time, cytochrome c, which is a slowly evolving protein, was the reference molecule to establish molecular phylogenies for very divergent eukaryotic lineages (Fitch and Margoliash 1967). Considering bacterial and chloroplastic c-type cytochomes together with cytochrome c, the first universal phylogenetic tree has been established. However, in
Michel Solignac +3 more
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For a long time, cytochrome c, which is a slowly evolving protein, was the reference molecule to establish molecular phylogenies for very divergent eukaryotic lineages (Fitch and Margoliash 1967). Considering bacterial and chloroplastic c-type cytochomes together with cytochrome c, the first universal phylogenetic tree has been established. However, in
Michel Solignac +3 more
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RNA Structure: Reading the Ribosome
Science, 2005The crystal structures of the ribosome and its subunits have increased the amount of information about RNA structure by about two orders of magnitude. This is leading to an understanding of the principles of RNA folding and of the molecular interactions that underlie the functional capabilities of the ribosome and other RNA systems.
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Trends in Cell Biology, 1998
Abstract SEITHER, P., IBEN, S. and GRUMMT, I. (1998) Mammalian RNA polymerase I exists as a holoenzyme with associated basal transcription factors J. Mol. Biol .
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Abstract SEITHER, P., IBEN, S. and GRUMMT, I. (1998) Mammalian RNA polymerase I exists as a holoenzyme with associated basal transcription factors J. Mol. Biol .
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Turnover of ribosomal RNA in liver
Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1976Abstract Labeling with [ 3 H]orotic acid or [ Me - 3 H]methionine it is found that the specific radioactivities of 28 S and 18 S ribosomal RNA decrease at similar rates in normal mouse liver, suggesting that they turn over simultaneously.
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Regulation of ribosomal protein genes: An ordered anarchy
Wiley Interdisciplinary Reviews RNA, 2021Sherif Abou Elela, A G Foster
exaly