2ACK:
reference: Static Laue diffraction studies on acetylcholinesterase., Ravelli RB, Raves ML, Ren Z, Bourgeois D, Roth M, Kroon J, Silman I, Sussman JL, Acta Crystallogr D Biol Crystallogr 1998 Nov 1;54(Pt 6 Pt 2):1359-66. PMID: 10089512

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