1J2U:
reference: Crystal structures of creatininase reveal the substrate binding site and provide an insight into the catalytic mechanism., Yoshimoto T, Tanaka N, Kanada N, Inoue T, Nakajima Y, Haratake M, Nakamura KT, Xu Y, Ito K, J Mol Biol 2004 Mar 19;337(2):399-416. PMID: 15003455

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