7JWY:
reference: A pH-dependent switch mediates conformational masking of SARS-CoV-2 spike., Zhou T, Tsybovsky Y, Olia AS, Gorman J, Rapp MA, Cerutti G, Katsamba PS, Nazzari A, Schon A, Wang PD, Bimela J, Shi W, Teng IT, Zhang B, Boyington JC, Chuang GY, Sampson JM, Sastry M, Stephens T, Stuckey J, Wang S, Friesner RA, Ho DD, Mascola JR, Shapiro L, Kwong PD, bioRxiv. 2020 Jul 4. doi: 10.1101/2020.07.04.187989. PMID: 32637958

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