Journal of Molecular Biology, volume 425, issue 6, pages 989-998
Crystal Structure of the Archaeal Translation Initiation Factor 2 in Complex with a GTP Analogue and Met-tRNAfMet
Publication type: Journal Article
Publication date: 2013-03-01
Journal:
Journal of Molecular Biology
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 5.6
ISSN: 00222836, 10898638
Molecular Biology
Structural Biology
Abstract
Heterotrimeric aIF2αβγ (archaeal homologue of the eukaryotic translation initiation factor 2) in its GTP-bound form delivers Met-tRNAi(Met) to the small ribosomal subunit. It is known that the heterodimer containing the GTP-bound γ subunit and domain 3 of the α subunit of aIF2 is required for the formation of a stable complex with Met-tRNAi. Here, the crystal structure of an incomplete ternary complex including aIF2αD3γ⋅GDPNP⋅Met-tRNAf(Met) has been solved at 3.2Å resolution. This structure is in good agreement with biochemical and hydroxyl radical probing data. The analysis of the complex shows that despite the structural similarity of aIF2γ and the bacterial translation elongation factor EF-Tu, their modes of tRNA binding are very different. Remarkably, the recently published 5.0-Å-resolution structure of almost the same ternary initiation complex differs dramatically from the structure presented. Reasons for this discrepancy are discussed.
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1 publication, 7.69%
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- We do not take into account publications that without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Stolboushkina E. et al. Crystal Structure of the Archaeal Translation Initiation Factor 2 in Complex with a GTP Analogue and Met-tRNAfMet // Journal of Molecular Biology. 2013. Vol. 425. No. 6. pp. 989-998.
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Stolboushkina E., Nikonov S., Zelinskaya N., Arkhipova V., Nikulin A. D., Garber M., Nikonov O. Crystal Structure of the Archaeal Translation Initiation Factor 2 in Complex with a GTP Analogue and Met-tRNAfMet // Journal of Molecular Biology. 2013. Vol. 425. No. 6. pp. 989-998.
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TY - JOUR
DO - 10.1016/j.jmb.2012.12.023
UR - https://doi.org/10.1016%2Fj.jmb.2012.12.023
TI - Crystal Structure of the Archaeal Translation Initiation Factor 2 in Complex with a GTP Analogue and Met-tRNAfMet
T2 - Journal of Molecular Biology
AU - Stolboushkina, Elena
AU - Nikonov, Stanislav
AU - Zelinskaya, Natalia
AU - Arkhipova, Valentina
AU - Nikulin, Alexey D.
AU - Garber, Maria
AU - Nikonov, Oleg
PY - 2013
DA - 2013/03/01 00:00:00
PB - Elsevier
SP - 989-998
IS - 6
VL - 425
SN - 0022-2836
SN - 1089-8638
ER -
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@article{2013_Stolboushkina,
author = {Elena Stolboushkina and Stanislav Nikonov and Natalia Zelinskaya and Valentina Arkhipova and Alexey D. Nikulin and Maria Garber and Oleg Nikonov},
title = {Crystal Structure of the Archaeal Translation Initiation Factor 2 in Complex with a GTP Analogue and Met-tRNAfMet},
journal = {Journal of Molecular Biology},
year = {2013},
volume = {425},
publisher = {Elsevier},
month = {mar},
url = {https://doi.org/10.1016%2Fj.jmb.2012.12.023},
number = {6},
pages = {989--998},
doi = {10.1016/j.jmb.2012.12.023}
}
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Stolboushkina, Elena, et al. “Crystal Structure of the Archaeal Translation Initiation Factor 2 in Complex with a GTP Analogue and Met-tRNAfMet.” Journal of Molecular Biology, vol. 425, no. 6, Mar. 2013, pp. 989-998. https://doi.org/10.1016%2Fj.jmb.2012.12.023.