3GKY:
reference: Crystal structure of a "nonfoldable" insulin: IMPAIRED FOLDING EFFICIENCY DESPITE NATIVE ACTIVITY., Liu M, Wan ZL, Chu YC, Aladdin H, Klaproth B, Choquette M, Hua QX, Mackin RB, Rao JS, De Meyts P, Katsoyannis PG, Arvan P, Weiss MA, J Biol Chem. 2009 Dec 11;284(50):35259-72. Epub 2009 Oct 22. PMID: 19850922

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