5LQB:
reference: Improved cancer immunotherapy by a CD25-mimobody conferring selectivity to human interleukin-2., Arenas-Ramirez N, Zou C, Popp S, Zingg D, Brannetti B, Wirth E, Calzascia T, Kovarik J, Sommer L, Zenke G, Woytschak J, Regnier CH, Katopodis A, Boyman O, Sci Transl Med. 2016 Nov 30;8(367):367ra166. PMID: 27903862

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