6pzf

Crystal structure of human NA-63 Fab in complex with neuraminidase from A/Hunan/02650/2016(H7N9)

spinqualitylabelsall models 6pzf, resolution 2.80Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6pzf is a 6 chain structure with sequence from Homo sapiens and Influenza A virus (A/Shanghai/02/2013(H7N9)). Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.8Å Ligands: BMA, CA, MAN, NAG, PO4 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function R4NFR6_9INFA Catalyzes the removal of terminal sialic acid residues from viral and cellular glycoconjugates.[RuleBase:RU361252] Publication Abstract from PubMed Influenza virus neuraminidase (NA) is a major target for small-molecule antiviral drugs. Antibodies targeting the NA surface antigen could also inhibit virus entry and egress to provide host protection. However, our understanding of the nature and range of target epitopes is limited because of a lack of human antibody structures with influenza neuraminidase. Here, we describe crystal and cryogenic electron microscopy (cryo-EM) structures of NAs from human-infecting avian H7N9 viruses in complex with five human anti-N9 antibodies, systematically defining several antigenic sites and antibody epitope footprints. These antibodies either fully or partially block the NA active site or bind to epitopes distant from the active site while still showing neuraminidase inhibition. The inhibition of antibodies to NAs was further analyzed by glycan array and solution-based NA activity assays. Together, these structural studies provide insights into protection by anti-NA antibodies and templates for the development of NA-based influenza virus vaccines and therapeutics. Structural Basis of Protection against H7N9 Influenza Virus by Human Anti-N9 Neuraminidase Antibodies.,Zhu X, Turner HL, Lang S, McBride R, Bangaru S, Gilchuk IM, Yu W, Paulson JC, Crowe JE Jr, Ward AB, Wilson IA Cell Host Microbe. 2019 Oct 24. pii: S1931-3128(19)30526-8. doi:, 10.1016/j.chom.2019.10.002. PMID:31757767 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Antibody 3D structures Neuraminidase 3D structures

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