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

被引:132
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.
引用
收藏
页码:1111 / 1118
页数:8
相关论文
共 31 条
[1]   Glutamine transport and human hepatocellular transformation [J].
Bode, BP ;
Souba, WW .
JOURNAL OF PARENTERAL AND ENTERAL NUTRITION, 1999, 23 (05) :S33-S37
[2]   Recent molecular advances in mammalian glutamine transport [J].
Bode, BP .
JOURNAL OF NUTRITION, 2001, 131 (09) :2475S-2485S
[3]   Glutamine alimentation in catabolic state [J].
Boelens, PG ;
Nijveldt, RJ ;
Houdijk, APJ ;
Meijer, S ;
van Leeuwen, PAM .
JOURNAL OF NUTRITION, 2001, 131 (09) :2569S-2577S
[4]   Cell-specific expression of the glutamine transporter SN1 suggests differences in dependence on the glutamine cycle [J].
Boulland, JL ;
Osen, KK ;
Levy, LM ;
Danbolt, NC ;
Edwards, RH ;
Storm-Mathisen, J ;
Chaudhry, FA .
EUROPEAN JOURNAL OF NEUROSCIENCE, 2002, 15 (10) :1615-1631
[5]  
Bourke E, 1992, Contrib Nephrol, V100, P58
[6]   CONFORMATIONALLY DEFINED NEUROTRANSMITTER ANALOGS - SELECTIVE-INHIBITION OF GLUTAMATE UPTAKE BY ONE PYRROLIDINE-2,4-DICARBOXYLATE DIASTEREOMER [J].
BRIDGES, RJ ;
STANLEY, MS ;
ANDERSON, MW ;
COTMAN, CW ;
CHAMBERLIN, AR .
JOURNAL OF MEDICINAL CHEMISTRY, 1991, 34 (02) :717-725
[7]  
Bröer A, 1999, J NEUROCHEM, V73, P2184
[8]   Transfer of glutamine between astrocytes and neurons [J].
Bröer, S ;
Brookes, N .
JOURNAL OF NEUROCHEMISTRY, 2001, 77 (03) :705-719
[9]   Glutamine uptake by neurons: Interaction of protons with system a transporters [J].
Chaudhry, FA ;
Schmitz, D ;
Reimer, RJ ;
Larsson, P ;
Gray, AT ;
Nicoll, R ;
Kavanaugh, M ;
Edwards, RH .
JOURNAL OF NEUROSCIENCE, 2002, 22 (01) :62-72
[10]   Molecular analysis of system N suggests novel physiological roles in nitrogen metabolism and synaptic transmission [J].
Chaudhry, FA ;
Reimer, RJ ;
Krizaj, D ;
Barber, D ;
Storm-Mathisen, J ;
Copenhagen, DR ;
Edwards, RH .
CELL, 1999, 99 (07) :769-780