Structural basis for LeishIF4E-1 modulation by an interacting protein in the human parasite Leishmania major.
Structural basis for LeishIF4E-1 modulation by an interacting protein in the human parasite Leishmania major.
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DOI:
10.1093/nar/gky194
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发表时间:
2018-04-20
影响因子:
14.9
通讯作者:
Léger-Abraham M
中科院分区:
文献类型:
--
作者:
Meleppattu S;Arthanari H;Zinoviev A;Boeszoermenyi A;Wagner G;Shapira M;Léger-Abraham M
Leishmania parasites are unicellular pathogens that are transmitted to humans through the bite of infected sandflies. Most of the regulation of their gene expression occurs post-transcriptionally, and the different patterns of gene expression required throughout the parasites’ life cycle are regulated at the level of translation. Here, we report the X-ray crystal structure of the Leishmania cap-binding isoform 1, LeishIF4E-1, bound to a protein fragment of previously unknown function, Leish4E-IP1, that binds tightly to LeishIF4E-1. The molecular structure, coupled to NMR spectroscopy experiments and in vitro cap-binding assays, reveal that Leish4E-IP1 allosterically destabilizes the binding of LeishIF4E-1 to the 5′ mRNA cap. We propose mechanisms through which Leish4E-IP1-mediated LeishIF4E-1 inhibition could regulate translation initiation in the human parasite.
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影响因子:
15
作者:
Hyberts, Sven G.;Takeuchi, Koh;Wagner, Gerhard
通讯作者:
Wagner, Gerhard
影响因子:
--
作者:
Freire, Eden R.;Malvezzi, Amaranta M.;Campbell, David A.
通讯作者:
Campbell, David A.
影响因子:
11.4
作者:
Cohen, N;Sharma, M;Borden, KLB
通讯作者:
Borden, KLB
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
影响因子:
2.7
作者:
Clouse, K. Nicole;Ferguson, Scott B.;Schupbach, Trudi
通讯作者:
Schupbach, Trudi