The effect of neomycin on poly(U) and poly(dT) translation in cell-free systems from Saccharomyces cerevisiae and Neurospora crassa

Authors

  • N. I. Shul'ga Institute of Molecular Biology and Genetics, NAS of Ukraine 150, Akademika Zabolotnoho Str., Kyiv, Ukraine, 03680 Author
  • A. P. Potapov Institute of Molecular Biology and Genetics, NAS of Ukraine 150, Akademika Zabolotnoho Str., Kyiv, Ukraine, 03680 Author

DOI:

https://doi.org/10.7124/bc.000328

Abstract

The effect of different concentration of neomycin on poly(U) and poly(dT) translation has been studied in cell-free systems from S. cerevisiae and M. crassa. The data show that this translation is carried out by cytoplasmic ribosomes. Mg2+ iones stimulate poly(U) and poly(dT) translation in these systems and neomycin unlike the prokaryotic cell-free systems inhibits translation of both templates. It was proposed that ribosome decoding center was changing during evolution to higher stereospecificity to the codon-anticodon sugar-phosphate backbone structure.

References

Potapov AP. A stereospecific mechanism for the aminoacyl-tRNA selection at the ribosome. FEBS Lett. 1982;146(1):5-8.

Potapov AP. Mechanism of the stereospecific stabilization of codon-anticodon complexes in ribosomes during translation. Zh Obshch Biol. 1985;46(1):63-77.

Potapov AP, Soldatkin KA, Soldatkin AP, El'skaya AV. The role of a template sugar-phosphate backbone in the ribosomal decoding mechanism. Comparative study of poly(U) and poly(dT) template activity. J Mol Biol. 1988;203(4):885-93.

Groisman IS, Potapov AP. The effect of Escherichia coli ribosomal protein S12 mutations on the efficiency of deoxyribonucleotide matrix poly(dT) translation. Biopolym Cell. 1989; 5(6):101-4.

Potapov AP, Soldatkin KA, Soldatkin AP, El'skaya AV. Comparative study of poly(U) and poly(dT) template activity in cell-free protein synthesizing systems from Escherichia coli and wheat germ. Biopolym. Cell. 1988; 4(3):133-8.

Tuite MF, Plesset J. mRNA-dependent yeast cell-free translation systems: theory and practice. Yeast. 1986;2(1):35-52.

Published

1992-05-20

Issue

Section

Short Communications