2I5Y:
reference: Combinatorial optimization of a CD4-mimetic miniprotein and cocrystal structures with HIV-1 gp120 envelope glycoprotein., Stricher F, Huang CC, Descours A, Duquesnoy S, Combes O, Decker JM, Kwon YD, Lusso P, Shaw GM, Vita C, Kwong PD, Martin L, J Mol Biol. 2008 Oct 3;382(2):510-24. Epub 2008 Jul 1. PMID: 18619974

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