4ZS6:
reference: Structural basis for the neutralization of MERS-CoV by a human monoclonal antibody MERS-27., Yu X, Zhang S, Jiang L, Cui Y, Li D, Wang D, Wang N, Fu L, Shi X, Li Z, Zhang L, Wang X, Sci Rep. 2015 Aug 18;5:13133. doi: 10.1038/srep13133. PMID: 26281793

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