4lki | pdb_00004lki

The structure of hemagglutinin L226Q mutant from a avian-origin H7N9 influenza virus (A/Anhui/1/2013)

spinqualitylabelsall models 4lki, resolution 2.70Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4lki is a 2 chain structure with sequence from 9infa. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: NAG Related: 4lkg, 4lkh, 4lkj, 4lkk Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed An avian-origin human-infecting influenza (H7N9) virus was recently identified in China. We have evaluated the viral hemagglutinin (HA) receptor-binding properties of two human H7N9 isolates, A/Shanghai/1/2013 (SH-H7N9) (containing the avian-signature residue Gln(226)) and A/Anhui/1/2013 (AH-H7N9) (containing the mammalian-signature residue Leu(226)). We found that SH-H7N9 HA preferentially binds the avian receptor analog, whereas AH-H7N9 HA binds both avian and human receptor analogs. Furthermore, an AH-H7N9 mutant HA (Leu(226) --> Gln) was found to exhibit dual receptor-binding property, indicating that other amino acid substitutions contribute to the receptor-binding switch. The structures of SH-H7N9 HA, AH-H7N9 HA, and its mutant in complex with either avian or human receptor analogs show how AH-H7N9 can bind human receptors while still retaining the avian receptor-binding property. Structures and receptor binding of hemagglutinins from human-infecting H7N9 influenza viruses.,Shi Y, Zhang W, Wang F, Qi J, Wu Y, Song H, Gao F, Bi Y, Zhang Y, Fan Z, Qin C, Sun H, Liu J, Haywood J, Liu W, Gong W, Wang D, Shu Y, Wang Y, Yan J, Gao GF Science. 2013 Oct 11;342(6155):243-7. doi: 10.1126/science.1242917. Epub 2013 Sep, 5. PMID:24009358 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Hemagglutinin

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