From genome to drug lead: identification of a small-molecule inhibitor of the SARS virus.
From genome to drug lead: identification of a small-molecule inhibitor of the SARS virus.
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DOI:
10.1016/j.bmcl.2005.11.018
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发表时间:
2006-02-15
影响因子:
2.7
通讯作者:
Pang YP
中科院分区:
文献类型:
--
作者:
Dooley AJ;Shindo N;Taggart B;Park JG;Pang YP
A small-molecule inhibitor of SARS-CoV, exhibiting an EC50 of 23 μM in cell-based assays, was identified by virtual screening against a computer model of a SARS-CoV cysteine proteinase. Virtual screening, a fast, computational approach to identify drug leads [Perola, E.; Xu, K.; Kollmeyer, T. M.; Kaufmann, S. H.; Prendergast, F. G. J. Med. Chem.2000, 43, 401; Miller, M. A. Nat. Rev. Drug Disc.2002, 1 220], is limited by a known challenge in crystallographically determining flexible regions of proteins. This approach has not been able to identify active inhibitors of the severe acute respiratory syndrome-associated coronavirus (SARS-CoV) using solely the crystal structures of a SARS-CoV cysteine proteinase with a flexible loop in the active site [Yang, H. T.; Yang, M. J.; Ding, Y.; Liu, Y. W.; Lou, Z. Y. Proc. Natl. Acad. Sci. U.S.A.2003, 100, 13190; Jenwitheesuk, E.; Samudrala, R. Bioorg. Med. Chem. Lett.2003, 13, 3989; Rajnarayanan, R. V.; Dakshanamurthy, S.; Pattabiraman, N. Biochem. Biophys. Res. Commun.2004, 321, 370; Du, Q.; Wang, S.; Wei, D.; Sirois, S.; Chou, K. Anal. Biochem.2005, 337, 262; Du, Q.; Wang, S.; Zhu, Y.; Wei, D.; Guo, H. Peptides2004, 25, 1857; Lee, V.; Wittayanarakul, K.; Remsungenen, T.; Parasuk, V.; Sompornpisut, P. Science (Asia)2003, 29, 181; Toney, J.; Navas-Martin, S.; Weiss, S.; Koeller, A. J. Med. Chem.2004, 47, 1079; Zhang, X. W.; Yap, Y. L. Bioorg. Med. Chem.2004, 12, 2517]. This article demonstrates a genome-to-drug-lead approach that uses terascale computing to model flexible regions of proteins, thus permitting the utilization of genetic information to identify drug leads expeditiously. A small-molecule inhibitor of SARS-CoV, exhibiting an effective concentration (EC50) of 23 μM in cell-based assays, was identified through virtual screening against a computer-predicted model of the cysteine proteinase. Screening against two crystal structures of the same proteinase failed to identify the 23-μM inhibitor. This study suggests that terascale computing can complement crystallography, broaden the scope of virtual screening, and accelerate the development of therapeutics to treat emerging infectious diseases such as SARS and Bird Flu.
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影响因子:
2.7
作者:
Jenwitheesuk E;Samudrala R
通讯作者:
Samudrala R
影响因子:
3.5
作者:
Zhang XW;Yap YL
通讯作者:
Yap YL
DOI:
10.1016/j.bbrc.2004.06.155
发表时间:
2004-08-20
影响因子:
3.1
作者:
Rajnarayanan, RV;Dakshanamurthy, S;Pattabiraman, N
通讯作者:
Pattabiraman, N
影响因子:
2.9
作者:
Pang, YP
通讯作者:
Pang, YP
影响因子:
5.4
作者:
ZIEBUHR, J;HEROLD, J;SIDDELL, SG
通讯作者:
SIDDELL, SG