Binding of α,α-disubstituted amino acids to arginase suggests new avenues for inhibitor design.
Binding of α,α-disubstituted amino acids to arginase suggests new avenues for inhibitor design.
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α,α-二取代氨基酸与精氨酸酶的结合为抑制剂设计提供了新途径。
DOI:
10.1021/jm200443b
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发表时间:
2011-08-11
影响因子:
7.3
通讯作者:
Christianson, David W.
中科院分区:
文献类型:
--
作者:
Ilies, Monica;Di Costanzo, Luigi;Dowling, Daniel P.;Thorn, Katherine J.;Christianson, David W.
Arginase is a binuclear manganese metalloenzyme that hydrolyzes L-arginine to form L-ornithine and urea, and aberrant arginase activity is implicated in various diseases such as erectile dysfunction, asthma, atherosclerosis, and cerebral malaria. Accordingly, arginase inhibitors may be therapeutically useful. Continuing our efforts to expand the chemical space of arginase inhibitor design, and inspired by the binding of 2-(difluoromethyl)-L-ornithine to human arginase I, we now report the first study of the binding of α,α-disubstituted amino acids to arginase. Specifically, we report the design, synthesis, and assay of racemic 2-amino-6-borono-2- methylhexanoic acid and racemic 2-amino-6-borono-2-(difluoromethyl)hexanoic acid. X-ray crystal structures of human arginase I and Plasmodium falciparum arginase complexed with these inhibitors reveal the exclusive binding of the L-stereoisomer; the additional α-substituent of each inhibitor is readily accommodated and makes new intermolecular interactions in the outer active site of each enzyme. Therefore, this work highlights a new region of the protein surface that can be targeted for additional affinity interactions, as well as the first comparative structural insights on inhibitor discrimination between a human and a parasitic arginase.
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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:
15
作者:
Baggio, R;Elbaum, D;Christianson, DW
通讯作者:
Christianson, DW
影响因子:
64.8
作者:
AUVINEN, M;PAASINEN, A;HOLTTA, E
通讯作者:
HOLTTA, E
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
影响因子:
15
作者:
Di Costanzo, Luigi;Pique, Michael E.;Christianson, David W.
通讯作者:
Christianson, David W.