Abstract
The translational specificity of Bacillus stearothermophilus ribosomes was studied by determining the effectiveness of various synthetic RNAs as templates at 37 degrees and at higher temperatures. The effectiveness of poly(G,U) was maximal at a G:U ratio of 1:3; it declined with lower G content because of reduced ribosomal affinity for the RNA and, with higher G, because of interference by secondary structure. The effectiveness of poly(A,C,G,U) also declined when secondary structure was increased by increasing (G+C) content. Escherichia coli ribosomes exhibited a similar specificity for poly-(G,U), but had a lower sensitivity to interference by RNA secondary structure. In both bacterial species, sensitivity to secondary structure was determined by the 30S ribosomal subunit.
Full text
PDF




Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Aoyagi S., Ishikawa T., Genta H. A simple and rapid separation of four major ribonucleosides or deoxyribonucleosides. Anal Biochem. 1975 May 12;65(1-2):567–568. doi: 10.1016/0003-2697(75)90547-3. [DOI] [PubMed] [Google Scholar]
- Bernal S. D., Blumberg B. M., Nakamoto T. Requirement of initiation factor 3 in the initiation of polypeptide synthesis with N-acetylphenylalanyl-tRNA. Proc Natl Acad Sci U S A. 1974 Mar;71(3):774–778. doi: 10.1073/pnas.71.3.774. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Blumberg B. M., Bernal S. D., Nakamoto T. Inhibition of N-acetylphenylalanyl transfer ribonucleic acid binding to 30S ribosomal subunit of Escherichia coli by N-formylmethionyl transfer ribonucleic acid. Biochemistry. 1974 Jul 30;13(16):3307–3311. doi: 10.1021/bi00713a020. [DOI] [PubMed] [Google Scholar]
- Hamel E., Koka M., Nakamoto T. Requirement of an Escherichia coli 50 S ribosomal protein component for effective interaction of the ribosome with T and G factors and with guanosine triphosphate. J Biol Chem. 1972 Feb 10;247(3):805–814. [PubMed] [Google Scholar]
- Held W. A., Gette W. R., Nomura M. Role of 16S ribosomal ribonucleic acid and the 30S ribosomal protein S12 in the initiation of natural messenger ribonucleic acid translation. Biochemistry. 1974 May 7;13(10):2115–2122. doi: 10.1021/bi00707a019. [DOI] [PubMed] [Google Scholar]
- Kolakofsky D., Nakamoto T. The initiation of viral protein synthesis in e. Coli extracts. Proc Natl Acad Sci U S A. 1966 Dec;56(6):1786–1793. doi: 10.1073/pnas.56.6.1786. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lodish H. F. Secondary structure of bacteriophage f2 ribonucleic acid and the initiation of in vitro protein biosynthesis. J Mol Biol. 1970 Jun 28;50(3):689–702. doi: 10.1016/0022-2836(70)90093-8. [DOI] [PubMed] [Google Scholar]
- Lodish H. F. Species specificity of polypeptide chain initiation. Nature. 1969 Nov 29;224(5222):867–870. doi: 10.1038/224867a0. [DOI] [PubMed] [Google Scholar]
- Lodish H. F. Specificity in bacterial protein synthesis: role of initiation factors and ribosomal subunits. Nature. 1970 May 23;226(5247):705–707. doi: 10.1038/226705a0. [DOI] [PubMed] [Google Scholar]
- Lodish H. F. Thermal melting of bacteriophage f2 RNA and initiation of synthesis of the maturation protein. J Mol Biol. 1971 Mar 28;56(3):627–632. doi: 10.1016/0022-2836(71)90406-2. [DOI] [PubMed] [Google Scholar]
- Nakamoto T., Kalokofsky D. A possible mechanism for initiation of protein synthesis. Proc Natl Acad Sci U S A. 1966 Mar;55(3):606–613. doi: 10.1073/pnas.55.3.606. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pochon F., Michelson A. M. Polynucleotides. VI. Interaction between polyguanylic acid and polycytidylic acid. Proc Natl Acad Sci U S A. 1965 Jun;53(6):1425–1430. doi: 10.1073/pnas.53.6.1425. [DOI] [PMC free article] [PubMed] [Google Scholar]
- SINGER M. F., GUSS J. K. The dependence of reactions catalyzed by polynucleotide phosphorylase on oligonucleotides. J Biol Chem. 1962 Jan;237:182–189. [PubMed] [Google Scholar]
- Shine J., Dalgarno L. The 3'-terminal sequence of Escherichia coli 16S ribosomal RNA: complementarity to nonsense triplets and ribosome binding sites. Proc Natl Acad Sci U S A. 1974 Apr;71(4):1342–1346. doi: 10.1073/pnas.71.4.1342. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Sprague K. U., Steitz J. A., Grenley R. M., Stocking C. E. 3' terminal sequences of 16S rRNA do not explain translational specificity differences between E. coli and B. stearothermophilus ribosomes. Nature. 1977 Jun 2;267(5610):462–465. doi: 10.1038/267462a0. [DOI] [PubMed] [Google Scholar]