3JCL
Cryo-electron microscopy structure of a coronavirus spike glycoprotein trimer
Summary for 3JCL
| Entry DOI | 10.2210/pdb3jcl/pdb |
| EMDB information | 6526 |
| Descriptor | Spike glycoprotein (1 entity in total) |
| Functional Keywords | coronavirus, viral fusion proteins, viral spike, peplomer, viral protein |
| Biological source | Murine hepatitis virus strain A59 (MHV-A59) |
| Total number of polymer chains | 3 |
| Total formula weight | 419186.95 |
| Authors | Walls, A.C.,Tortorici, M.A.,Bosch, B.J.,Frenz, B.,Rottier, P.J.M.,DiMaio, F.,Rey, F.A.,Veesler, D. (deposition date: 2015-12-21, release date: 2016-02-03, Last modification date: 2024-11-06) |
| Primary citation | Walls, A.C.,Tortorici, M.A.,Bosch, B.J.,Frenz, B.,Rottier, P.J.,DiMaio, F.,Rey, F.A.,Veesler, D. Cryo-electron microscopy structure of a coronavirus spike glycoprotein trimer. Nature, 531:47-52, 2016 Cited by PubMed Abstract: The tremendous pandemic potential of coronaviruses was demonstrated twice in the past few decades by two global outbreaks of deadly pneumonia. Entry of coronaviruses into cells is mediated by the transmembrane spike glycoprotein S, which forms a trimer carrying receptor-binding and membrane fusion functions. S also contains the principal antigenic determinants and is the target of neutralizing antibodies. Here we present the structure of a mouse coronavirus S trimer ectodomain determined at 4.0 Å resolution by single particle cryo-electron microscopy. It reveals the metastable pre-fusion architecture of S and highlights key interactions stabilizing it. The structure shares a common core with paramyxovirus F proteins, implicating mechanistic similarities and an evolutionary connection between these viral fusion proteins. The accessibility of the highly conserved fusion peptide at the periphery of the trimer indicates potential vaccinology strategies to elicit broadly neutralizing antibodies against coronaviruses. Finally, comparison with crystal structures of human coronavirus S domains allows rationalization of the molecular basis for species specificity based on the use of spatially contiguous but distinct domains. PubMed: 26855426DOI: 10.1038/nature16988 PDB entries with the same primary citation |
| Experimental method | ELECTRON MICROSCOPY (4 Å) |
Structure validation
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