3A2Q:
reference: X-ray crystallographic analysis of the 6-aminohexanoate cyclic dimer hydrolase: catalytic mechanism and evolution of an enzyme responsible for nylon-6 byproduct degradation., Yasuhira K, Shibata N, Mongami G, Uedo Y, Atsumi Y, Kawashima Y, Hibino A, Tanaka Y, Lee YH, Kato D, Takeo M, Higuchi Y, Negoro S, J Biol Chem. 2010 Jan 8;285(2):1239-48. Epub 2009 Nov 3. PMID: 19889645

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