Docking studies on PARP-1 inhibitors: insights into the role of a binding pocket water molecule

被引:56
作者
Bellocchi, D [1 ]
Macchiarulo, A [1 ]
Costantino, G [1 ]
Pellicciari, R [1 ]
机构
[1] Univ Perugia, Dipartimento Chim & Tecnol Farmaco, I-06123 Perugia, Italy
关键词
PARP; docking; structural water; desolvation energy;
D O I
10.1016/j.bmc.2004.11.024
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
The binding mode of a series of competitive PARP-1 inhibitors was investigated employing a molecular docking approach by using Autodock 3.0. A particular attention was given to the role played by a water molecule present in some but not all the so far available crystal structures of the catalytic domain of PARP-1. Good correlation between calculated binding energies and experimental inhibitory activities was obtained either by including (r(2) = 0.87) or not (r(2) = 0.84) the structural water molecule. Closer inspection of our results suggested that this water molecule should be considered part of the hydration shell of polar inhibitors and not as a structural water. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1151 / 1157
页数:7
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