9kr8 | pdb_00009kr8

Overall structure of HKU5 S protein in closed conformation

spinqualitylabelsall models 9kr8, resolution 2.39Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 9kr8 is a 3 chain structure with sequence from Pipistrellus bat coronavirus HKU5. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Electron Microscopy, Resolution 2.39Å Ligands: NAG, OLA, PLM Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function SPIKE_BCHK5 S1 region attaches the virion to the cell membrane by interacting with cell receptors, initiating the infection. S2 is a class I viral fusion protein. Under the current model, the protein has at least 3 conformational states: pre-fusion native state, pre-hairpin intermediate state, and post-fusion hairpin state. During viral and target cell membrane fusion, the coiled coil regions (heptad repeats) assume a trimer-of-hairpins structure, positioning the fusion peptide in close proximity to the C-terminal region of the ectodomain. The formation of this structure appears to drive apposition and subsequent fusion of viral and target cell membranes (By similarity).

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