5N48:
reference: Anticalins Reveal High Plasticity in the Mode of Complex Formation with a Common Tumor Antigen., Schiefner A, Gebauer M, Richter A, Skerra A, Structure. 2018 Mar 5. pii: S0969-2126(18)30043-1. doi:, 10.1016/j.str.2018.02.003. PMID: 29526433

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