7x2m

Crystal structure of nanobody 1-2C7 with SARS-CoV-2 RBD

spinqualitylabelsall models 7x2m, resolution 1.80Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 7x2m is a 2 chain structure with sequence from Severe acute respiratory syndrome coronavirus 2 and Vicugna pacos. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.8Å Ligands: MAN, NAG Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed As SARS-CoV-2 Omicron and other variants of concern (VOCs) continue spreading worldwide, development of antibodies and vaccines to confer broad and protective activity is a global priority. Here, we report on the identification of a special group of nanobodies from immunized alpaca with potency against diverse VOCs including Omicron subvariants BA.1, BA.2 and BA.4/5, SARS-CoV-1, and major sarbecoviruses. Crystal structure analysis of one representative nanobody, 3-2A2-4, discovers a highly conserved epitope located between the cryptic and the outer face of the receptor binding domain (RBD), distinctive from the receptor ACE2 binding site. Cryo-EM and biochemical evaluation reveal that 3-2A2-4 interferes structural alteration of RBD required for ACE2 binding. Passive delivery of 3-2A2-4 protects K18-hACE2 mice from infection of authentic SARS-CoV-2 Delta and Omicron. Identification of these unique nanobodies will inform the development of next generation antibody therapies and design of pan-sarbecovirus vaccines. Broadly neutralizing and protective nanobodies against SARS-CoV-2 Omicron subvariants BA.1, BA.2, and BA.4/5 and diverse sarbecoviruses.,Li M, Ren Y, Aw ZQ, Chen B, Yang Z, Lei Y, Cheng L, Liang Q, Hong J, Yang Y, Chen J, Wong YH, Wei J, Shan S, Zhang S, Ge J, Wang R, Dong JZ, Chen Y, Shi X, Zhang Q, Zhang Z, Chu JJH, Wang X, Zhang L Nat Commun. 2022 Dec 27;13(1):7957. doi: 10.1038/s41467-022-35642-2. PMID:36575191 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Spike protein 3D structures

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