5ZNS:
reference: Structural and biochemical insights into the catalytic mechanisms of two insect chitin deacetylases of the carbohydrate esterase 4 family., Liu L, Zhou Y, Qu M, Qiu Y, Guo X, Zhang Y, Liu T, Yang J, Yang Q, J Biol Chem. 2019 Feb 12. pii: RA119.007597. doi: 10.1074/jbc.RA119.007597. PMID: 30755482

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