Structural basis for the activation of flaviviral NS3 proteases from dengue and West Nile virus

Structural basis for the activation of flaviviral NS3 proteases from dengue and West Nile virus
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DOI:
10.1038/nsmb1073
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发表时间:
2006-04-01
影响因子:
16.8
通讯作者:
Hommel, U
Hommel, U
中科院分区:
生物学1区
文献类型:
--
作者:
Erbel, P;Schiering, N;Hommel, U

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黄病毒的复制需要病毒NS 3蛋白酶(NS 3 pro)正确加工其多蛋白。NS 2B的47个残基区域对于NS 3 pro的活化是必需的。在这里,我们报告了登革热NS 2B-NS 3 pro复合物和西尼罗河病毒NS 2B-NS 3 pro复合物与基于底物的抑制剂的晶体结构。这些结构确定了NS 3 pro底物识别的关键残基,并阐明了NS 3 pro激活的机制。
The replication of flaviviruses requires the correct processing of their polyprotein by the viral NS3 protease ( NS3pro). Essential for the activation of NS3pro is a 47-residue region of NS2B. Here we report the crystal structures of a dengue NS2B-NS3pro complex and a West Nile virus NS2B-NS3pro complex with a substrate-based inhibitor. These structures identify key residues for NS3pro substrate recognition and clarify the mechanism of NS3pro activation.