2J8T:
reference: The atomic resolution structure of human aldose reductase reveals that rearrangement of a bound ligand allows the opening of the safety-belt loop., Biadene M, Hazemann I, Cousido A, Ginell S, Joachimiak A, Sheldrick GM, Podjarny A, Schneider TR, Acta Crystallogr D Biol Crystallogr. 2007 Jun;63(Pt 6):665-72. Epub 2007, May 15. PMID: 17505104

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