EF-Tu and EF-G are activated by allosteric effects
EF-Tu and EF-G are activated by allosteric effects
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EF-Tu 和 EF-G 由变构效应激活
DOI:
10.1073/pnas.1800054115
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Warshel, Arieh
中科院分区:
文献类型:
--
作者:
Mondal, Dibyendu;Warshel, Arieh
Many cellular processes are controlled by GTPases, and gaining quantitative understanding of the activation of such processes has been a major challenge. In particular, it is crucial to obtain reliable free-energy surfaces for the relevant reaction paths both in solution and in GTPases active sites. Here, we revisit the energetics of the activation of EF-G and EF-Tu by the ribosome and explore the nature of the catalysis of the GTPase reaction. The comparison of EF-Tu to EF-G allows us to explore the impact of possible problems with the available structure of EF-Tu. Additionally, mutational effects are used for a careful validation of the emerging conclusions. It is found that the reaction may proceed by both a two-water mechanism and a one-water (GTP as a base) mechanism. However, in both cases, the activation involves a structural allosteric effect, which is likely to be a general-activation mechanism for all GTPases.
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影响因子:
6.1
作者:
Kamerlin SC;Sharma PK;Prasad RB;Warshel A
通讯作者:
Warshel A
DOI:
10.1016/j.bbapap.2006.08.007
发表时间:
2006-11
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
A. Warshel;P. K. Sharma;Mitsunori Kato;W. W. Parson-W.
通讯作者:
A. Warshel;P. K. Sharma;Mitsunori Kato;W. W. Parson-W.
影响因子:
5.7
作者:
I. Muegge;T. Schweins;R. Langen;A. Warshel
通讯作者:
A. Warshel
影响因子:
4.6
作者:
Åqvist J;Kamerlin SC
通讯作者:
Kamerlin SC
DOI:
--
发表时间:
2015
期刊:
Nature Structural &Molecular Biology
影响因子:
--
作者:
Yun Chen;S. Feng;Veerendra Kumar;R. Ero;Yonggui Gao
通讯作者:
Yonggui Gao