4N21:
reference: Structural Characterization of the Glycoprotein GP2 Core Domain from the CAS Virus, a Novel Arenavirus-Like Species., Koellhoffer JF, Dai Z, Malashkevich VN, Stenglein MD, Liu Y, Toro R, Harrison J, Chandran K, Derisi JL, Almo SC, Lai JR, J Mol Biol. 2013 Dec 12. pii: S0022-2836(13)00751-1. doi:, 10.1016/j.jmb.2013.12.009. PMID: 24333483

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