Results 251 to 260 of about 320,389 (303)

Ribosomal RNA precursors in plants

Journal of Molecular Biology, 1970
Abstract 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, U E, Loening, R S, Fraser
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Multiple conformations of ribosomal precursor RNA

Nature, 1975
WE wish to propose an explanation for the heterogeneity shown1 by ribosomal precursor RNAs on gel electrophoresis. The clearest demonstration of this phenomenon is shown in Fig. 1. 32P-labelled RNA was eluted from single gel slices taken across the peak, and rerun in the presence of 3H-labelled marker.
J M, Slack, M L, Sartirana, U E, Loening
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Splicing of messenger RNA precursors

BioEssays, 1985
AbstractThe splicing of pre‐mRNAs in vitro is accomplished by formation of RNA intermediates in a lariat form. Lariat RNAs have been recently identified in vivo supporting the validity of the proposed pathway for processing pre‐mRNAs in vitro.We have recently reported20 a partial purification scheme for a pre‐mRNA splicing activity. Purification of the
Satish Patwardhan, Gustavo Kaltwasser, Peter R. Dimaria, Carlos J. Goldenberg   +3 more
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Speculation on the RNA Precursor Problem

Journal of Theoretical Biology, 1997
While no convincing prebiotic synthesis of RNA building blocks has been demonstrated, at least two synthetic analogues of nucleic acids have been described whose properties are remarkably similar to those of RNA. The RNA backbone is thus not the only possible solution to the problem of replicating the information stored in a sequence of purines and ...
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Photochemistry of RNA, RNA Monomers, and Plausible Prebiotic Precursors

2023
Book ...
Sean J. Hoehn, Naishka E. Caldero-Rodríguez, Carlos E. Crespo-Hernández   +2 more
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Dimeric transfer RNA precursors in S. pombe

Cell, 1980
Sequence analysis of a Schizosaccharomyces pombe DNA fragment revealed two tRNA coding regions separated by a seven nucleotide spacer. the 5'-proximal tRNA gene encodes a tRNAUCGSer sequence, which is interrupted by a 16 nucleotide intron at the 3' side of the base adjacent to the anticodon.
J, Mao, O, Schmidt, D, Söll
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Enzymatic N-riboside scission in RNA and RNA precursors

Current Opinion in Chemical Biology, 1997
N-ribohydrolases and transferases act on nucleosides, nucleotides and oligonucleotides to effect base removal. Advances in mechanistic and structural analysis have established that enzymes of N-riboside scission act by combinations of leaving-group and ribosyl activation.
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