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Structural basis for inhibition of the RNA-dependent RNA polymerase from SARS-CoV-2 by remdesivir.
Science ( IF 41.845 ) Pub Date : 2020-06-26 , DOI: 10.1126/science.abc1560
Wanchao Yin,Chunyou Mao,Xiaodong Luan,Dan-Dan Shen,Qingya Shen,Haixia Su,Xiaoxi Wang,Fulai Zhou,Wenfeng Zhao,Minqi Gao,Shenghai Chang,Yuan-Chao Xie,Guanghui Tian,He-Wei Jiang,Sheng-Ce Tao,Jingshan Shen,Yi Jiang,Hualiang Jiang,Yechun Xu,Shuyang Zhang,Yan Zhang,H Eric Xu

The pandemic of coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has become a global crisis. Replication of SARS-CoV-2 requires the viral RNA-dependent RNA polymerase (RdRp) enzyme, a target of the antiviral drug remdesivir. Here we report the cryo–electron microscopy structure of the SARS-CoV-2 RdRp, both in the apo form at 2.8-angstrom resolution and in complex with a 50-base template-primer RNA and remdesivir at 2.5-angstrom resolution. The complex structure reveals that the partial double-stranded RNA template is inserted into the central channel of the RdRp, where remdesivir is covalently incorporated into the primer strand at the first replicated base pair, and terminates chain elongation. Our structures provide insights into the mechanism of viral RNA replication and a rational template for drug design to combat the viral infection.
更新日期:2020-06-26

 

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