Nγ-Aryl glutamine analogues as probes of the ASCT2 neutral amino acid transporter binding site

被引:133
作者
Esslinger, CS [1 ]
Cybulski, KA [1 ]
Rhoderick, JF [1 ]
机构
[1] Univ Montana, NIH, COBRE, Ctr Ctruct & FUnct Neurosci,Dept Biomed & Pharmac, Missoula, MT 59812 USA
关键词
pharmacophore; modeling; inhibition; H-bonding;
D O I
10.1016/j.bmc.2004.11.028
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Analogues of L-glutamine were designed and synthesized to test a hydrogen-bond hypothesis between ligand and neutral amino acid transporter ASCT2. The key design feature contains a substituted phenyl ring on the amide nitrogen that contains electron withdrawing and electron donating groups that alter the pK(a) of the amide NH. Through this study a preliminary binding site map has been developed, and a potent commercially available competitive inhibitor of the ASCT2 transporter has been identified. (C) 2004 Elsevier Ltd. All rights reserved.
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页码:1111 / 1118
页数:8
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