Complete nucleotide sequence of the 26S rRNA gene of Physarum polycephalum: its significance in gene evolution.
- 1 June 1983
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 80 (11) , 3163-3167
- https://doi.org/10.1073/pnas.80.11.3163
Abstract
The complete nucleotide sequences of the 5.8S and 26S rRNA genes of P. polycephalum and the transcribed spacer between them were determined. Comparison of the sequences with those of the Escherichia coli 23S rRNA and yeast 26S rRNA genes shows that there are 16 highly homologous regions in the sequences of Physarum and E. coli and that eukaryotes have some eukaryote-specific extra sequences. The sequence immediately following the 5.8S-like region of E. coli 23S rRNA was highly homologous to the 5'' terminus of Physarum 26S rRNA, indicating that the eukaryote-specific 5.8S rRNA gene is derived from the 5''-terminal region of the prokaryote large rRNA gene.Keywords
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