Distinct states of methionyl-tRNA synthetase indicate inhibitor binding by conformational selection.
Distinct states of methionyl-tRNA synthetase indicate inhibitor binding by conformational selection.
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DOI:
10.1016/j.str.2012.07.011
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发表时间:
2012-10-10
期刊:
影响因子:
--
通讯作者:
Hol WG
中科院分区:
文献类型:
--
作者:
Koh CY;Kim JE;Shibata S;Ranade RM;Yu M;Liu J;Gillespie JR;Buckner FS;Verlinde CL;Fan E;Hol WG
To guide development of new drugs targeting methionyl-tRNA synthetase (MetRS) for treatment of human African trypanosomiasis, crystal structure determinations of Trypanosoma brucei MetRS in complex with its substrate methionine and its intermediate product methionyl-adenylate were followed by those of the enzyme in complex with high-affinity aminoquinolone inhibitors via soaking experiments. Drastic changes in conformation of one of the two enzymes in the asymmetric unit allowed these inhibitors to occupy an enlarged methionine pocket and a new so-called auxiliary pocket. Interestingly, a small low-affinity compound caused the same conformational changes, removed the methionine without occupying the methionine pocket, and occupied the previously not existing auxiliary pocket. Analysis of these structures indicates that the binding of the inhibitors is the result of conformational selection, not induced fit.
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影响因子:
13.8
作者:
Csermely, Peter;Palotai, Robin;Nussinov, Ruth
通讯作者:
Nussinov, Ruth
DOI:
10.1107/s0907444909042073
发表时间:
2010-01
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Chen VB;Arendall WB 3rd;Headd JJ;Keedy DA;Immormino RM;Kapral GJ;Murray LW;Richardson JS;Richardson DC
通讯作者:
Richardson DC
影响因子:
14.8
作者:
Boehr, David D.;Nussinov, Ruth;Wright, Peter E.
通讯作者:
Wright, Peter E.
影响因子:
7.3
作者:
Jarvest, RL;Berge, JM;Worby, A
通讯作者:
Worby, A
影响因子:
5.4
作者:
Ingvarsson, Henrik;Unge, Torsten
通讯作者:
Unge, Torsten