Functional mimicry revealed by the crystal structure of an eIF4A:RNA complex bound to the interfacial inhibitor, desmethyl pateamine A.
Functional mimicry revealed by the crystal structure of an eIF4A:RNA complex bound to the interfacial inhibitor, desmethyl pateamine A.
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DOI:
10.1016/j.chembiol.2020.12.006
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发表时间:
2021-06-17
影响因子:
8.6
通讯作者:
Pelletier J
中科院分区:
文献类型:
--
作者:
Naineni SK;Liang J;Hull K;Cencic R;Zhu M;Northcote P;Teesdale-Spittle P;Romo D;Nagar B;Pelletier J
Interfacial inhibitors exert their biological effects through co-association with two macromolecules. The pateamine A (PatA) class of molecules function by stabilizing eukaryotic initiation factor (eIF) 4A RNA helicase onto RNA, resulting in translation initiation inhibition. Here, we present the first crystal structure of an eIF4A1:RNA complex bound to an analogue of the marine sponge-derived natural product PatA, C5-desmethyl pateamine A (DMPatA). One end of this small molecule wedges itself between two RNA bases while the other end is cradled by several protein residues. Strikingly, DMPatA interacts with the eIF4A1:RNA complex in an almost identical fashion as rocaglamide A (RocA), despite being completely unrelated from a structural standpoint. The structural data rationalizes the ability of PatA analogues to target a wider range of RNA substrates compared to RocA. We define the molecular basis of how DMPatA is able to clamp eIF4A1 onto RNA, imparting potent inhibitory properties to this molecule.
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1997-04-01
期刊:
METHODS-A COMPANION TO METHODS IN ENZYMOLOGY
影响因子:
--
作者:
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通讯作者:
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影响因子:
5.7
作者:
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发表时间:
2005-07-26
影响因子:
11.1
作者:
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通讯作者:
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DOI:
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发表时间:
2010-11-01
影响因子:
2.2
作者:
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通讯作者:
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影响因子:
64.8
作者:
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通讯作者:
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