Title
Virtual screening of novel noncovalent inhibitors for SARS-CoV 3C-like proteinase.
Abstract
The SARS coronavirus 3C-like proteinase is considered as a potential drug design target for the treatment of severe acute respiratory syndrome (SARS). Owing to the lack of available drugs for the treatment of SARS, the discovery of inhibitors for SARS coronavirus 3C-like proteinase that can potentially be optimized as drugs appears to be highly desirable. We have built a "flexible" three-dimensional model for SARS 3C-like proteinase by homology modeling and multicanonical molecular dynamics method and used the model for virtual screening of chemical databases. After Dock procedures, strategies including pharmocophore model, consensus scoring, and "drug-like" filters were applied in order to accelerate the process and improve the success rate of virtual docking screening hit lists. Forty compounds were purchased and tested by HPLC and colorimetric assay against SARS 3C-like proteinase. Three of them including calmidazolium, a well-known antagonist of calmodulin, were found to inhibit the enzyme with an apparent K-i from 61 to 178 mu M. These active compounds and their binding modes provide useful information for understanding the binding sites and for further selective drug design against SARS and other coronavirus.
Year
DOI
Venue
2005
10.1021/ci049809b
JOURNAL OF CHEMICAL INFORMATION AND MODELING
Keywords
Field
DocType
virtual screening
DOCK,Available drugs,Docking (dog),Chemistry,SARS coronavirus,Bioinformatics,Virtual screening,Homology modeling,Virology,Drug
Journal
Volume
Issue
ISSN
45
1
1549-9596
Citations 
PageRank 
References 
5
0.60
2
Authors
12
Name
Order
Citations
PageRank
Zhenming Liu1233.99
Changkang Huang250.60
Keqiang Fan350.60
Ping Wei4106.49
Hao Chen550.60
Shiyong Liu6443.95
Jianfeng Pei7416.72
Lei Shi812715.23
Bo Li911139.58
Kun Yang1064.00
Ying Liu1180.97
Luhua Lai1236933.78