4rpd | pdb_00004rpd

Crystal Structure of P Domain of 485 Norovirus

spinqualitylabelsall models 4rpd, resolution 1.51Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4rpd is a 2 chain structure with sequence from Norwalk virus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function Q20K66_9CALI Publication Abstract from PubMed Human norovirus interacts with the polymorphic human histo-blood group antigens (HBGAs), and this interaction is thought to be important for infection. The genogroup II genotype 4 (GII.4) noroviruses are the dominant cluster, evolve every other year, and are thought to modify their binding interactions with different HBGA types. Most human noroviruses bind HBGAs, while some strains were found to have minimal or no HBGA interactions. Here, we explain some possible structural constraints for several noroviruses that were found to bind poorly to HBGAs by using X-ray crystallography. We showed that one aspartic acid was flexible or positioned away from the fucose moiety of the HBGAs and this likely hindered binding, although other fucose-interacting residues were perfectly oriented. Interestingly, a neighboring loop also appeared to influence the loop hosting the aspartic acid. These new findings might explain why some human noroviruses bound HBGAs poorly, although further studies are required. Structural Constraints on Human Norovirus Binding to Histo-Blood Group Antigens.,Singh BK, Leuthold MM, Hansman GS mSphere. 2016 Mar 30;1(2). pii: e00049-16. doi: 10.1128/mSphere.00049-16., eCollection 2016 Mar-Apr. PMID:27303720 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Virus coat proteins 3D structures

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