Homology of the 3' terminal sequences of the 18S rRNA of Bombyx mori and the 16S rRNA of Escherchia coli

The terminal 220 base pairs (bp) of the gene for 18S rRNA and 18 bp of the adjoining spacer rDNA of the silkworm Bombyx mori have been sequenced. Comparison with the sequence of the 16S rRNA gene of Escherichia coli has shown that a region including 45 bp of the B. mori sequence at the 3' end i...

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Bibliographic Details
Published in:Nucleic acids research 1979-11, Vol.7 (5), p.1109-1119
Main Authors: Samols, D R, Hagenbuchle, O, Gage, L P
Format: Article
Language:English
Subjects:
Animals
Base Composition
Base Sequence
Bombyx - analysis
Bombyx mori
DNA Restriction Enzymes
DNA, Recombinant
Escherichia coli
Escherichia coli - analysis
Molecular Weight
Nucleic Acid Conformation
Plasmids
RNA, Ribosomal
Species Specificity
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Summary:The terminal 220 base pairs (bp) of the gene for 18S rRNA and 18 bp of the adjoining spacer rDNA of the silkworm Bombyx mori have been sequenced. Comparison with the sequence of the 16S rRNA gene of Escherichia coli has shown that a region including 45 bp of the B. mori sequence at the 3' end is remarkably homologous with the 3' terminal E. coli sequence. Other homologies occur in the terminal regions of the 18S and 16S rRNAs, including a perfectly conserved stretch of 13 bp within a longer homology located 150--200 bp from the 3' termini. These homologies are the most extensive so far reported between prokaryotic and eukaryotic genomic DNA.
ISSN:0305-1048
1362-4962