5x5f

Prefusion structure of MERS-CoV spike glycoprotein, conformation 2Prefusion structure of MERS-CoV spike glycoprotein, conformation 2

5x5f, resolution 4.20Å Show:Asymmetric Unit Biological Assembly Structural highlights 5x5f is a 3 chain structure with sequence from Mers. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Related: 5x59 Experimental data: Check Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed The envelope spike (S) proteins of MERS-CoV and SARS-CoV determine the virus host tropism and entry into host cells, and constitute a promising target for the development of prophylactics and therapeutics. Here, we present high-resolution structures of the trimeric MERS-CoV and SARS-CoV S proteins in its pre-fusion conformation by single particle cryo-electron microscopy. The overall structures resemble that from other coronaviruses including HKU1, MHV and NL63 reported recently, with the exception of the receptor binding domain (RBD). We captured two states of the RBD with receptor binding region either buried (lying state) or exposed (standing state), demonstrating an inherently flexible RBD readily recognized by the receptor. Further sequence conservation analysis of six human-infecting coronaviruses revealed that the fusion peptide, HR1 region and the central helix are potential targets for eliciting broadly neutralizing antibodies. Cryo-EM structures of MERS-CoV and SARS-CoV spike glycoproteins reveal the dynamic receptor binding domains.,Yuan Y, Cao D, Zhang Y, Ma J, Qi J, Wang Q, Lu G, Wu Y, Yan J, Shi Y, Zhang X, Gao GF Nat Commun. 2017 Apr 10;8:15092. doi: 10.1038/ncomms15092. PMID:28393837 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.