Skip to main content
PMC home page
Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1977 Jul;74(7):2710–2714. doi: 10.1073/pnas.74.7.2710

Identification of spacer tRNA genes in individual ribosomal RNA transcription units of Escherichia coli.

E A Morgan, T Ikemura, M Nomura
PMCID: PMC431257  PMID: 331313

Abstract

Transfer RNA genes ("spacer tRNA genes") are present in the spacer region between 16S and 23S rRNA genes in Escherichia coli. We have analyzed spacer tRNA genes carried by seven rRNA operons with different chromosomal locations. Six of these were isolated on plasmids and one on a transducing phage. We found that, in addition to the two previously identified genes for tRNA2Glu and tRNAIIle, there is a spacer tRNA gene which codes for tRNAIBAla. Of the seven rRNA operons studied, three had both tRNAIBAla and tRNAIIle genes, and the remaining four had the tRNA2Glu gene in their spacers. In addition, genes for tRNAIAsp were found near the distal ends of two different rRNA operons.

Full text

PDF
2712

Images in this article

2712Image
on p.2712
2713Image
on p.2713
2713Image
on p.2713

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Bachmann B. J., Low K. B., Taylor A. L. Recalibrated linkage map of Escherichia coli K-12. Bacteriol Rev. 1976 Mar;40(1):116–167. doi: 10.1128/br.40.1.116-167.1976. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Clarke L., Carbon J. A colony bank containing synthetic Col El hybrid plasmids representative of the entire E. coli genome. Cell. 1976 Sep;9(1):91–99. doi: 10.1016/0092-8674(76)90055-6. [DOI] [PubMed] [Google Scholar]
  3. Clarkson S. G., Birnstiel M. L., Serra V. Reiterated transfer RNA genes of Xenopus laevis. J Mol Biol. 1973 Sep 15;79(2):391–410. doi: 10.1016/0022-2836(73)90013-2. [DOI] [PubMed] [Google Scholar]
  4. Dennis P. P., Nomura M. Regulation of the expression of ribosomal protein genes in Escherichia coli. J Mol Biol. 1975 Sep 5;97(1):61–76. doi: 10.1016/s0022-2836(75)80022-2. [DOI] [PubMed] [Google Scholar]
  5. Harada F., Yamaizumi K., Nishimura S. Oligonucleotide sequences of RNase T 1 and pancreatic RNase digests of E. coli aspartic acid tRNA. Biochem Biophys Res Commun. 1972 Dec 18;49(6):1605–1609. doi: 10.1016/0006-291x(72)90525-6. [DOI] [PubMed] [Google Scholar]
  6. Ikemura T., Dahlberg J. E. Small ribonucleic acids of Escherichia coli. II. Noncoordinate accumulation during stringent control. J Biol Chem. 1973 Jul 25;248(14):5033–5041. [PubMed] [Google Scholar]
  7. Lund E., Dahlberg J. E., Lindahl L., Jaskunas S. R., Dennis P. P., Nomura M. Transfer RNA genes between 16S and 23S rRNA genes in rRNA transcription units of E. coli. Cell. 1976 Feb;7(2):165–177. doi: 10.1016/0092-8674(76)90016-7. [DOI] [PubMed] [Google Scholar]
  8. Morgan E. A., Kaplan S. Transcription of Escherichia coli ribosomal DNA in Proteus mirabilis. Mol Gen Genet. 1976 Aug 19;147(2):179–188. doi: 10.1007/BF00267569. [DOI] [PubMed] [Google Scholar]
  9. Pace N. R. Structure and synthesis of the ribosomal ribonucleic acid of prokaryotes. Bacteriol Rev. 1973 Dec;37(4):562–603. doi: 10.1128/br.37.4.562-603.1973. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Sanger F., Brownlee G. G., Barrell B. G. A two-dimensional fractionation procedure for radioactive nucleotides. J Mol Biol. 1965 Sep;13(2):373–398. doi: 10.1016/s0022-2836(65)80104-8. [DOI] [PubMed] [Google Scholar]
  11. Sidikaro J., Masayasu N. In vitro synthesis of the E3 immunity protein directed by Col E3 plasmid deoxyribonucleic acid. J Biol Chem. 1975 Feb 10;250(3):1123–1131. [PubMed] [Google Scholar]
  12. Tanaka T., Weisblum B. Construction of a colicin E1-R factor composite plasmid in vitro: means for amplification of deoxyribonucleic acid. J Bacteriol. 1975 Jan;121(1):354–362. doi: 10.1128/jb.121.1.354-362.1975. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Wu M., Davidson N. Use of gene 32 protein staining of single-strand polynucleotides for gene mapping by electron microscopy: application to the phi80d3ilvsu+7 system. Proc Natl Acad Sci U S A. 1975 Nov;72(11):4506–4510. doi: 10.1073/pnas.72.11.4506. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Yamamoto M., Lindahl L., Nomura M. Synthesis of ribosomal RNA in E. coli: analysis using deletion mutants of a lambda transducing phage carrying ribosomal RNA genes. Cell. 1976 Feb;7(2):179–190. doi: 10.1016/0092-8674(76)90017-9. [DOI] [PubMed] [Google Scholar]
  15. Yamamoto M., Nomura M. Isolation of lambda transducing phages carrying rRNA genes at the metA-purD region of the Escherichia coli chromosome. FEBS Lett. 1976 Dec 31;72(2):256–261. doi: 10.1016/0014-5793(76)80981-7. [DOI] [PubMed] [Google Scholar]

Articles from Proceedings of the National Academy of Sciences of the United States of America are provided here courtesy of National Academy of Sciences

RESOURCES