Abstract
Coxsackievirus B3 (CVB3) 3C protease (3CP) plays essential roles in the viral replication cycle, and therefore, provides an attractive therapeutic target for treatment of human diseases caused by CVB3 infection. CVB3 3CP and human rhinovirus (HRV) 3CP have a high degree of amino acid sequence similarity. Comparative modeling of these two 3CPs revealed one prominent distinction; an Asn residue delineating the S2′ pocket in HRV 3CP is replaced by a Tyr residue in CVB3 3CP. AG7088, a potent inhibitor of HRV 3CP, was modified by substitution of the ethyl group at the P2′ position with various hydrophobic aromatic rings that are predicted to interact preferentially with the Tyr residue in the S2′ pocket of CVB3 3CP. The resulting derivatives showed dramatically increased inhibitory activities against CVB3 3CP. In addition, one of the derivatives effectively inhibited the CVB3 proliferation in vitro.
Original language | English |
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Pages (from-to) | 7-11 |
Number of pages | 5 |
Journal | Biochemical and biophysical research communications |
Volume | 358 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2007 Jun 22 |
Bibliographical note
Funding Information:During this work, W.J.P. was supported by a GRL Grant (M6-0605-00-0001) from the Ministry of Science and Technology, Korea, YCK was supported by a grant of the Korea Health 21 R&D Project, from the Ministry of Health & Welfare, Republic of Korea (Grant No. A040042), and OKP was supported by a grant from the Plant Signaling Network Research Center funded by the Korea Science and Engineering Foundation.
Keywords
- 3C protease
- Coaxsackievirus
- Inhibitor
ASJC Scopus subject areas
- Biophysics
- Biochemistry
- Molecular Biology
- Cell Biology