2ZM7:
reference: Molecular design of a nylon-6 byproduct-degrading enzyme from a carboxylesterase with a beta-lactamase fold., Kawashima Y, Ohki T, Shibata N, Higuchi Y, Wakitani Y, Matsuura Y, Nakata Y, Takeo M, Kato D, Negoro S, FEBS J. 2009 May;276(9):2547-56. Epub 2009 Mar 18. PMID: 19476493

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