Skip to main content

Interactions of Transfer RNAs with their Biological Partners

  • Conference paper
Specificity in Biological Interactions
  • 36 Accesses

Abstract

The three-dimensional structure of two elongator tRNAs, tRNAPhe and tRNAAsp from yeast, has been solved at high resolution. Their secondary cloverleaf structures are folded in a tertiary L-shaped conformation with a more open structure for tRNAAsp. Both tRNAs present different molecular dynamics as revealed by temperature factors of the different parts of the molecules. These features are related to different conformational states of the tRNAs: tRNAPhe would possess the structure of a free tRNA and tRNAAsp that of a tRNA on the ribosome. The solution structure of both tRNAs was probed with chemical reagents and compared with the crystal structures. Structural similarities as well as differences were detected reflecting the versatility of tRNA structures.

Comparing the accessibility of tRNAs, in their free state and complexed to aminoacyl-tRNA synthetases or elongation factor EF-Tu, to chemical or enzymatic probes, it was possible to determine the regions of tRNAs in close contact with their macromolecular partners. Upon complex formation with aminoacyl- tRNA synthetases a multistep adaptation of both macromolecules takes place, analogous to an induced fit. This process determines the specificity of the tRNA aminoacylation reaction. In the particular case of the yeast phenylalanine system, the wybutine residue next to the anticodon of tRNAPhe has been identified as an important element in this mechanism. More precise structural information will arise in future from studies on crystallized complexes. Such a complex, that between tRNAAsp and aspartyl-tRNA synthetase, has been crystallized and is under investigation.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 169.00
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 219.00
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 219.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 1984 Pontificia Academia Scientiarum — Città del Vaticano

About this paper

Cite this paper

Ebel, J.P., Giege, R., Moras, D., Remy, P. (1984). Interactions of Transfer RNAs with their Biological Partners. In: Chagas, C., Pullman, B. (eds) Specificity in Biological Interactions. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-6457-0_10

Download citation

  • DOI: https://doi.org/10.1007/978-94-009-6457-0_10

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-009-6459-4

  • Online ISBN: 978-94-009-6457-0

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics