The ABC-F protein EttA gates ribosome entry into the translation elongation cycle.
The ABC-F protein EttA gates ribosome entry into the translation elongation cycle.
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DOI:
10.1038/nsmb.2740
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发表时间:
2014-02
影响因子:
16.8
通讯作者:
Hunt JF
中科院分区:
文献类型:
--
作者:
Boël G;Smith PC;Ning W;Englander MT;Chen B;Hashem Y;Testa AJ;Fischer JJ;Wieden HJ;Frank J;Gonzalez RL Jr;Hunt JF
ABC-F proteins have evaded functional characterization even though they comprise one of the most widely distributed branches of the ATP-binding cassette (ABC) superfamily. Herein, we demonstrate that YjjK, the most prevalent eubacterial ABC-F protein, gates ribosome entry into the translation elongation cycle through a nucleotide-dependent interaction sensitive to ATP/ADP ratio. Accordingly, we rename this protein Energy-dependent Translational Throttle A (EttA). We determined the crystal structure of Escherichia coli EttA and used it to design mutants for biochemical studies, including enzymological assays of the initial steps of protein synthesis. These studies suggest that EttA may regulate protein synthesis in energy-depleted cells, which have a low ATP/ADP ratio. Consistent with this inference, ΔettA cells exhibit a severe fitness defect in long-term stationary phase. These studies demonstrate that an ABC-F protein regulates protein synthesis via a novel mechanism sensitive to cellular energy status.
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DOI:
10.1038/10695
发表时间:
1999-07-01
期刊:
NATURE STRUCTURAL BIOLOGY
影响因子:
--
作者:
Agrawal, RK;Heagle, AB;Frank, J
通讯作者:
Frank, J
影响因子:
5.5
作者:
Aleksandrov, Andrei A.;Cui, Liying;Riordan, John R.
通讯作者:
Riordan, John R.
影响因子:
64.8
作者:
Andersen, Christian B. F.;Becker, Thomas;Beckmann, Roland
通讯作者:
Beckmann, Roland
影响因子:
9.9
作者:
通讯作者:
--
DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者:
Zwart PH