Covalent complexes of proteasome model with peptide aldehyde inhibitors MG132 and MG101: docking and molecular dynamics study
Covalent complexes of proteasome model with peptide aldehyde inhibitors MG132 and MG101: docking and molecular dynamics study
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蛋白酶体模型与肽醛抑制剂MG132和MG101的共价复合物:对接和分子动力学研究
DOI:
10.1007/s00894-009-0515-0
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发表时间:
2009-05
影响因子:
2.2
通讯作者:
Siwei Zhang
中科院分区:
文献类型:
--
作者:
Zhenming Liu;Lihe Zhang;Hongwei Jin;Liangren Zhang;Siwei Zhang
20S proteasome plays a critical role in the regulation of several important cellular processes and has drawn extensive interest in the field of anti-tumor research. Peptide aldehydes can inhibit the 20S proteasome activity by covalently binding to the active site of the β subunits. In this work, covalent docking in conjunction with molecular dynamics (MD) simulation was used to explore the binding mode of MG132. Two conformations with the lowest docking energy were selected as the representative binding modes. One of the conformations was confirmed as a more reasonable binding mode by molecular dynamics simulations. The binding mode analysis revealed that a space demanding aromatic group with a short linker at the P4 site of the peptide aldehyde inhibitor would form favorable hydrophobic contacts with the neighboring subunit. A bulky substituent at the P2 position would also increase the binding stability by reducing water accessibility of the covalent bond. This study contributed to our understanding of the mechanism and structure-activity relationship of the peptide aldehyde inhibitors and may provide useful information for rational drug design.
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DOI:
10.1002/chin.200722279
发表时间:
2007-05
期刊:
ChemInform
影响因子:
--
作者:
L. Borissenko;M. Groll
通讯作者:
L. Borissenko;M. Groll
影响因子:
2.2
作者:
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通讯作者:
T. Cundari;Adriana Dinescu;Dunming Zhu;L. Hua
影响因子:
2.9
作者:
Smith, DM;Daniel, KG;Dou, QP
通讯作者:
Dou, QP
影响因子:
56.9
作者:
LOWE, J;STOCK, D;HUBER, R
通讯作者:
HUBER, R
影响因子:
2.2
作者:
Zeng, Juan;Jiang, Hualiang;Liu, Guixia;Tang, Yun
通讯作者:
Tang, Yun