National Natural Science Foundation of China (NSFC)
81902085
中国
National Natural Science Foundation of China (NSFC)
32130022
中国
引用
ジャーナル: Science / 年: 2022 タイトル: Structures of the Omicron spike trimer with ACE2 and an anti-Omicron antibody. 著者: Wanchao Yin / Youwei Xu / Peiyu Xu / Xiaodan Cao / Canrong Wu / Chunyin Gu / Xinheng He / Xiaoxi Wang / Sijie Huang / Qingning Yuan / Kai Wu / Wen Hu / Zifu Huang / Jia Liu / Zongda Wang / ...著者: Wanchao Yin / Youwei Xu / Peiyu Xu / Xiaodan Cao / Canrong Wu / Chunyin Gu / Xinheng He / Xiaoxi Wang / Sijie Huang / Qingning Yuan / Kai Wu / Wen Hu / Zifu Huang / Jia Liu / Zongda Wang / Fangfang Jia / Kaiwen Xia / Peipei Liu / Xueping Wang / Bin Song / Jie Zheng / Hualiang Jiang / Xi Cheng / Yi Jiang / Su-Jun Deng / H Eric Xu / 要旨: The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron variant has become the dominant infective strain. We report the structures of the Omicron spike trimer on its own and in ...The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron variant has become the dominant infective strain. We report the structures of the Omicron spike trimer on its own and in complex with angiotensin-converting enzyme 2 (ACE2) or an anti-Omicron antibody. Most Omicron mutations are located on the surface of the spike protein and change binding epitopes to many current antibodies. In the ACE2-binding site, compensating mutations strengthen receptor binding domain (RBD) binding to ACE2. Both the RBD and the apo form of the Omicron spike trimer are thermodynamically unstable. An unusual RBD-RBD interaction in the ACE2-spike complex supports the open conformation and further reinforces ACE2 binding to the spike trimer. A broad-spectrum therapeutic antibody, JMB2002, which has completed a phase 1 clinical trial, maintains neutralizing activity against Omicron. JMB2002 binds to RBD differently from other characterized antibodies and inhibits ACE2 binding.