1F6F:
reference: Ternary complex between placental lactogen and the extracellular domain of the prolactin receptor., Elkins PA, Christinger HW, Sandowski Y, Sakal E, Gertler A, de Vos AM, Kossiakoff AA, Nat Struct Biol 2000 Sep;7(9):808-15. PMID: 10966654

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