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Stapled peptide-based membrane fusion inhibitors of hepatitis C virus
被引:61
|作者:
Cui, Hong-Kui
[1
]
Qing, Jie
[1
]
Guo, Ye
[1
]
Wang, Yu-Jia
[1
]
Cui, Li-Jia
[2
,3
]
He, Tian-Hua
[2
,3
]
Zhang, Linqi
[2
,3
]
Liu, Lei
[1
]
机构:
[1] Tsinghua Univ, Dept Chem, Tsinghua Peking Ctr Life Sci,Minist Educ, Key Lab Bioorgan Phosphorus Chem & Chem Biol, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Sch Med, Comprehens AIDS Res Ctr, Beijing 100084, Peoples R China
[3] Tsinghua Univ, Sch Med, Res Ctr Publ Hlth, Beijing 100084, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Hepatitis C virus;
Stapled peptide;
Protein-protein interaction;
CELL-CULTURE SYSTEMS;
B TYPE-I;
OLEFIN METATHESIS;
ALPHA-HELICES;
BH3;
HELIX;
CD81;
ENTRY;
INFECTION;
PROTEINS;
RECEPTOR;
D O I:
10.1016/j.bmc.2013.02.011
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 strategy of peptide stapling was used to develop new molecules to inhibit the hepatitis C virus infection via disrupting the binding of HCV envelope glycoprotein E2 with human cell surface protein CD81. The peptide sequence was designed based on the large extra-cellular loop of CD81 with known importance in the HCV E2 binding interaction. Our results showed that the stapled peptides exhibited significantly higher alpha-helicity and proteolytic stability as compared to their linear peptide counterpart. The optimal compound was found to have an EC50 value of ca. 17-39 mu M against different HCV subtypes and represented a new HCV membrane fusion inhibitor. (C) 2013 Elsevier Ltd. All rights reserved.
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页码:3547 / 3554
页数:8
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