5K4H:
reference: Structural Insight into Substrate Selectivity of Erwinia chrysanthemi l-Asparaginase., Nguyen HA, Su Y, Lavie A, Biochemistry. 2016 Mar 1;55(8):1246-53. doi: 10.1021/acs.biochem.5b01351. Epub, 2016 Feb 17. PMID: 26855287

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