The Enterovirus 3C Protease Inhibitor SG85 Efficiently Blocks Rhinovirus Replication and Is Not Cross-Resistant with Rupintrivir

被引:19
作者
Lacroix, Celine [1 ]
George, Shyla [2 ]
Leyssen, Pieter [1 ]
Hilgenfeld, Rolf [2 ,3 ]
Neyts, Johan [1 ]
机构
[1] Katholieke Univ Leuven, Rena Inst Med Res, Virol Lab, Leuven, Belgium
[2] Med Univ Lubeck, Inst Biochem, Ctr Struct & Cell Biol Med, D-23538 Lubeck, Germany
[3] Med Univ Lubeck, German Ctr Infect Res DZIF, Hamburg Lubeck Borstel Site, D-23538 Lubeck, Germany
关键词
STRUCTURE-BASED DESIGN; VITRO ANTIVIRAL ACTIVITY; BIOLOGICAL EVALUATION; RNA-BINDING; INFECTION;
D O I
10.1128/AAC.00534-15
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
The novel enterovirus protease inhibitor (PI) SG85 effectively inhibits the in vitro replication of 14 rhinoviruses representative of species A and B (median 50% effective concentration, 0.04 mu M). A low-level SG85-resistant variant was selected that carried amino acid substitutions S127G and T143A in the 3C protease. Both substitutions are required for low-level resistance to SG85, as demonstrated by reverse genetics. Interestingly, there is no cross-resistance to SG85 and rupintrivir (another PI); a structural explanation is provided for this observation.
引用
收藏
页码:5814 / 5818
页数:5
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