5gsw

Crystal structure of EV71 3C in complex with N69S 1.8k

spinqualitylabelsall models 5gsw, resolution 3.19Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 5gsw is a 5 chain structure with sequence from Enterovirus A71. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 3.19Å Ligands: 5GI Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function E7E815_HE71 Publication Abstract from PubMed Hand-foot-and-mouth disease (HFMD), caused by enterovirus, is a threat to public health worldwide. To date, enterovirus 71 (EV71) has been one of the major causative agents of HFMD in the Pacific-Asia region, and outbreaks with EV71 cause millions of infections. However, no drug is currently available for clinical therapeutics. In our previous works, we developed a set of protease inhibitors (PIs) targeting the EV71 3C protease (3Cpro). Among these are NK-1.8k and NK-1.9k, which have various active groups and high potencies and selectivities. In the study described here, we determined the structures of the PI NK-1.8k in complex with wild-type (WT) and drug-resistant EV71 3Cpro Comparison of these structures with the structure of unliganded EV71 3Cpro and its complex with AG7088 indicated that the mutation of N69 to a serine residue destabilized the S2 pocket. Thus, the mutation influenced the cleavage activity of EV71 3Cpro and the inhibitory activity of NK-1.8k in an in vitro protease assay and highlighted that site 69 is an additional key site for PI design. More information for the optimization of the P1' to P4 groups of PIs was also obtained from these structures. Together with the results of our previous works, these in-depth results elucidate the inhibitory mechanism of PIs and shed light to develop PIs for the clinical treatment of infections caused by EV71 and other enteroviruses. Structure of the Enterovirus 71 3C Protease in Complex with NK-1.8k and Indications for the Development of Antienterovirus Protease Inhibitor.,Wang Y, Cao L, Zhai Y, Yin Z, Sun Y, Shang L Antimicrob Agents Chemother. 2017 Jun 27;61(7). pii: e00298-17. doi:, 10.1128/AAC.00298-17. Print 2017 Jul. PMID:28461310 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Virus protease 3D structures

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