4xak

Crystal structure of potent neutralizing antibody m336 in complex with MERS Co-V RBDCrystal structure of potent neutralizing antibody m336 in complex with MERS Co-V RBD

Structural highlights

4xak is a 6 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
Resources:	FirstGlance, OCA, RCSB, PDBsum

Function

[SPIKE_CVEMC] S1 attaches the virion to the cell membrane by interacting with host DPP4, initiating the infection.^[1] S2 is a class I viral fusion protein. Under the current model, the protein has at least 3 conformational states: pre-fusion native state, pre-hairpin intermediate state, and post-fusion hairpin state. During viral and target cell membrane fusion, the coiled coil regions (heptad repeats) assume a trimer-of-hairpins structure, positioning the fusion peptide in close proximity to the C-terminal region of the ectodomain. The formation of this structure appears to drive apposition and subsequent fusion of viral and plasma cell membranes (By similarity).

References

↑ Raj VS, Mou H, Smits SL, Dekkers DH, Muller MA, Dijkman R, Muth D, Demmers JA, Zaki A, Fouchier RA, Thiel V, Drosten C, Rottier PJ, Osterhaus AD, Bosch BJ, Haagmans BL. Dipeptidyl peptidase 4 is a functional receptor for the emerging human coronavirus-EMC. Nature. 2013 Mar 14;495(7440):251-4. doi: 10.1038/nature12005. PMID:23486063 doi:http://dx.doi.org/10.1038/nature12005

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OCA

[1] Raj VS, Mou H, Smits SL, Dekkers DH, Muller MA, Dijkman R, Muth D, Demmers JA, Zaki A, Fouchier RA, Thiel V, Drosten C, Rottier PJ, Osterhaus AD, Bosch BJ, Haagmans BL. Dipeptidyl peptidase 4 is a functional receptor for the emerging human coronavirus-EMC. Nature. 2013 Mar 14;495(7440):251-4. doi: 10.1038/nature12005. PMID:23486063 doi:http://dx.doi.org/10.1038/nature12005

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