8e2u

HMPV F monomer bound to RSV-199 Fab

spinqualitylabelsall models 8e2u, resolution 3.48Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 8e2u is a 3 chain structure with sequence from Homo sapiens and Human metapneumovirus A. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Electron Microscopy, Resolution 3.48Å Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function Q8B9P0_9MONO Publication Abstract from PubMed Respiratory syncytial virus (RSV) and human metapneumovirus (hMPV) infections pose a significant health burden. Using pre-fusion conformation fusion (F) proteins, we isolated a panel of anti-F antibodies from a human donor. One antibody (RSV-199) potently cross-neutralized 8 RSV and hMPV strains by recognizing antigenic site III, which is partially conserved in RSV and hMPV F. Next, we determined the cryoelectron microscopy (cryo-EM) structures of RSV-199 bound to RSV F trimers, hMPV F monomers, and an unexpected dimeric form of hMPV F. These structures revealed how RSV-199 engages both RSV and hMPV F proteins through conserved interactions of the antibody heavy-chain variable region and how variability within heavy-chain complementarity-determining region 3 (HCDR3) can be accommodated at the F protein interface in site-III-directed antibodies. Furthermore, RSV-199 offered enhanced protection against RSV A and B strains and hMPV in cotton rats. These findings highlight the mechanisms of broad neutralization and therapeutic potential of RSV-199. Potent cross-neutralization of respiratory syncytial virus and human metapneumovirus through a structurally conserved antibody recognition mode.,Wen X, Suryadevara N, Kose N, Liu J, Zhan X, Handal LS, Williamson LE, Trivette A, Carnahan RH, Jardetzky TS, Crowe JE Jr Cell Host Microbe. 2023 Aug 9;31(8):1288-1300.e6. doi: , 10.1016/j.chom.2023.07.002. Epub 2023 Jul 28. PMID:37516111 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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