1B41:
reference: Structures of recombinant native and E202Q mutant human acetylcholinesterase complexed with the snake-venom toxin fasciculin-II., Kryger G, Harel M, Giles K, Toker L, Velan B, Lazar A, Kronman C, Barak D, Ariel N, Shafferman A, Silman I, Sussman JL, Acta Crystallogr D Biol Crystallogr 2000 Nov;56 ( Pt 11):1385-94. PMID: 11053835

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