7x91

The SARS-CoV-2 receptor binding domain bound with an Fv-clasp form of a human neutralizing antibody Ab496

spinqualitylabelsall models 7x91, resolution 4.30Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 7x91 is a 3 chain structure with sequence from Homo sapiens and Severe acute respiratory syndrome coronavirus 2. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Electron Microscopy, Resolution 4.3Å Ligands: NAG Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed The use of therapeutic neutralizing antibodies against SARS-CoV-2 infection has been highly effective. However, there remain few practical antibodies against viruses that are acquiring mutations. In this study, we created 494 monoclonal antibodies from patients with COVID-19-convalescent, and identified antibodies that exhibited the comparable neutralizing ability to clinically used antibodies in the neutralization assay using pseudovirus and authentic virus including variants of concerns. These antibodies have different profiles against various mutations, which were confirmed by cell-based assay and cryo-electron microscopy. To prevent antibody-dependent enhancement, N297A modification was introduced. Our antibodies showed a reduction of lung viral RNAs by therapeutic administration in a hamster model. In addition, an antibody cocktail consisting of three antibodies was also administered therapeutically to a macaque model, which resulted in reduced viral titers of swabs and lungs and reduced lung tissue damage scores. These results showed that our antibodies have sufficient antiviral activity as therapeutic candidates. Potent SARS-CoV-2 neutralizing antibodies with therapeutic effects in two animal models.,Takeshita M, Fukuyama H, Kamada K, Matsumoto T, Makino-Okamura C, Uchikubo-Kamo T, Tomabechi Y, Hanada K, Moriyama S, Takahashi Y, Ishigaki H, Nakayama M, Nguyen CT, Kitagawa Y, Itoh Y, Imai M, Maemura T, Furusawa Y, Ueki H, Iwatsuki-Horimoto K, Ito M, Yamayoshi S, Kawaoka Y, Shirouzu M, Ishii M, Saya H, Kondo Y, Kaneko Y, Suzuki K, Fukunaga K, Takeuchi T iScience. 2022 Dec 22;25(12):105596. doi: 10.1016/j.isci.2022.105596. Epub 2022 , Nov 15. PMID:36406861 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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