Crossref journal-article
Wiley
Proteins: Structure, Function, and Bioinformatics (311)
Abstract

AbstractEukaryotic translational termination is triggered by polypeptide release factors eRF1, eRF3, and one of the three stop codons at the ribosomal A‐site. Isothermal titration calorimetry shows that (i) the separated MC, M, and C domains of human eRF1 bind to eRF3; (ii) GTP binding to eRF3 requires complex formation with either the MC or M + C domains; (iii) the M domain interacts with the N and C domains; (iv) the MC domain and Mg2+ induce GTPase activity of eRF3 in the ribosome. We suggest that GDP binding site of eRF3 acquires an ability to bind γ‐phosphate of GTP if altered by cooperative action of the M and C domains of eRF1. Thus, the stop‐codon decoding is associated with the N domain of eRF1 while the GTPase activity of eRF3 is controlled by the MC domain of eRF1 demonstrating a substantial structural uncoupling of these two activities though functionally they are interrelated. Proteins 2008. © 2007 Wiley‐Liss, Inc.

Bibliography

Kononenko, A. V., Mitkevich, V. A., Dubovaya, V. I., Kolosov, P. M., Makarov, A. A., & Kisselev, L. L. (2007). Role of the individual domains of translation termination factor eRF1 in GTP binding to eRF3. Proteins: Structure, Function, and Bioinformatics, 70(2), 388–393. Portico.

Authors 6
  1. Artem V. Kononenko (first)
  2. Vladimir A. Mitkevich (additional)
  3. Vera I. Dubovaya (additional)
  4. Peter M. Kolosov (additional)
  5. Alexander A. Makarov (additional)
  6. Lev L. Kisselev (additional)
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Dates
Type When
Created 18 years, 1 month ago (Aug. 6, 2007, 5:46 p.m.)
Deposited 1 year, 10 months ago (Oct. 10, 2023, 1:38 a.m.)
Indexed 3 weeks, 4 days ago (Aug. 12, 2025, 5:29 p.m.)
Issued 18 years, 1 month ago (Aug. 6, 2007)
Published 18 years, 1 month ago (Aug. 6, 2007)
Published Online 18 years, 1 month ago (Aug. 6, 2007)
Published Print 17 years, 7 months ago (Feb. 1, 2008)
Funders 0

None

@article{Kononenko_2007, title={Role of the individual domains of translation termination factor eRF1 in GTP binding to eRF3}, volume={70}, ISSN={1097-0134}, url={http://dx.doi.org/10.1002/prot.21544}, DOI={10.1002/prot.21544}, number={2}, journal={Proteins: Structure, Function, and Bioinformatics}, publisher={Wiley}, author={Kononenko, Artem V. and Mitkevich, Vladimir A. and Dubovaya, Vera I. and Kolosov, Peter M. and Makarov, Alexander A. and Kisselev, Lev L.}, year={2007}, month=aug, pages={388–393} }