8a99

SARS Cov2 Spike in 1-up conformation complex with Fab47

spinqualitylabelsall models 8a99, resolution 2.50Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 8a99 is a 9 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 2.5Å Ligands: NAG Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed The human immunoglobulin heavy-chain (IGH) locus is exceptionally polymorphic, with high levels of allelic and structural variation. Thus, germline IGH genotypes are personal, which may influence responses to infection and vaccination. For an improved understanding of inter-individual differences in antibody responses, we isolated SARS-CoV-2 spike-specific monoclonal antibodies from convalescent health care workers, focusing on the IGHV1-69 gene, which has the highest level of allelic variation of all IGHV genes. The IGHV1-69( *)20-using CAB-I47 antibody and two similar antibodies isolated from an independent donor were critically dependent on allele usage. Neutralization was retained when reverting the V region to the germline IGHV1-69( *)20 allele but lost when reverting to other IGHV1-69 alleles. Structural data confirmed that two germline-encoded polymorphisms, R50 and F55, in the IGHV1-69 gene were required for high-affinity receptor-binding domain interaction. These results demonstrate that polymorphisms in IGH genes can influence the function of SARS-CoV-2 neutralizing antibodies. Immunoglobulin germline gene polymorphisms influence the function of SARS-CoV-2 neutralizing antibodies.,Pushparaj P, Nicoletto A, Sheward DJ, Das H, Castro Dopico X, Perez Vidakovics L, Hanke L, Chernyshev M, Narang S, Kim S, Fischbach J, Ekstrom S, McInerney G, Hallberg BM, Murrell B, Corcoran M, Karlsson Hedestam GB Immunity. 2023 Jan 10;56(1):193-206.e7. doi: 10.1016/j.immuni.2022.12.005. Epub , 2022 Dec 12. PMID:36574772 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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