3WLK:
reference: Discovery of processive catalysis by an exo-hydrolase with a pocket-shaped active site., Streltsov VA, Luang S, Peisley A, Varghese JN, Ketudat Cairns JR, Fort S, Hijnen M, Tvaroska I, Arda A, Jimenez-Barbero J, Alfonso-Prieto M, Rovira C, Mendoza F, Tiessler-Sala L, Sanchez-Aparicio JE, Rodriguez-Guerra J, Lluch JM, Marechal JD, Masgrau L, Hrmova M, Nat Commun. 2019 May 20;10(1):2222. doi: 10.1038/s41467-019-09691-z. PMID: 31110237

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